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Peer Reviewed Journal Publications 2018-19
Eastwood, C., J. Greer, D. Schmidt, J. Muir, and K. Sargeant. 2018. New dairy workplace design – the challenge of attracting and retaining staff on the NZ dairy farm of 2030.Moorepark Dairy Levy Research Update / ADSS & APS.p. 70
Chapman, D. 2018. Science snapshot: Does sowing rate affect pasture persistence? Technical Series. p. 14
Hendriks, S. J., C. V. C. Phyn, S. A. Turner, K. Mueller, B. Kuhn-Sherklock, D. J. Donaghy, J. M. Huzzey, and J. R. Roche. 2018.Profiling behavioral changes during the transition period in grazing dairy cows (POSTER). ASAS-CSAS Annual Meeting, 8-12 July,Vancouver, Canada. Published in JAS
Stewart, A. 2018. Plant breeding for the dairy sector. Technical Series. pp. 1-5
Sutherland, M. 2018. Choosing the best method of disbudding and pain prevention. Technical Series. pp. 6-9
Brier, D., C. R. Eastwood, B. T. Dela Rue, and D. Viehland. 2018. Undertanding the potential benefits and barriers associated with virtual fencing adoption - a Delphi study. Computers and Electronics in Agriculture.
Romera, A. J., M. Neal, and B. Bos. 2018. Re-designing New Zealand dairy systems: public preferences (ABSTRACT). 41st Argentine Congress of Animal Production. https://www.aapa.org.ar/41capa/index.htmlRutherford, K., L. McKergow, A, Hughes, and F. Matheson. 2018. Natural seepage wetlands: Can they reduce nitrogen losses? Technical Series. pp. 10-13
Spaans, O. K., K. A. Macdonald, M. Neal, M. J. Auldist, J. A. S. Lancaster, A. M. Bryant, G. J. Doole, and J. R. Roche. 2018. Altering month of calving affects biophysical and economic performance in temperate pasture-based dairy systems - a case-study approach. Journal of Dairy Science.
Steele, N., K. M. Enger, T. H. Swartz, A. Willard, H. Schramm, J. Hogan, S. Nordstrom, G. Vertenten, andC. S. Petersson-Wolfe. 2018. The effect of vaccination on bacterial count, somatic cell score, milk yield and vaginal temperature following experimental Escherichia coli mastitis (POSTER). Proceedings of the 30th World Buiatrics Congress, 28 August - 1 September 2018, Sapporo, Japan
Stephen, M. A., J. R. Bryant, M. D. Camara, and D. Meadows. 2018. Developing metrics to rank individual herds according to data quality. Interbull Bulletin.
Grala, T. M., R. R. Handley, C. V. C. Phyn, J. R. Roche, and D. E. Dalley. 2018. Changing from pasture to fodder beet alters hepatic metabolism in non-lactating dairy cows: a case study. Journal of Dairy Science.
Crookenden, M. A., K. M. Moyes, B. Kuhn-Sherlock, K. Lehnert, C. G. Walker, J. J. Loor, M. D. Mitchell, A. Murray, V. S. R. Dukkipatti, M. Vailati-Riboni, A. Heiser, and J. R. Roche. 2018. Transcriptomic analysis of circulating neutrophils in metabolically stressed peripartal grazing dairy cows (ABSTRACT). 35th ADSA Discover Conference on Food Animal Agriculture: Effects of Stress on Health and Production in Dairy Cows, 29 October - 1 November, Illinois, USA
Reed, C. B., S. Meier, L. A. Murray, C. R. Burke, and J. L. Pitman. 2018. Dairy cows with higher genetic merit for fertility produce better quality oocytes (POSTER). Proceedings of the Society for Reproductive Biology Conference, 19-22 August 2018, Adelaide, Australia
Steele, N. M., A. Tholen, A. De Vries, S. J. Lacy-Hulbert, R. R. White and C. S. Petersson-Wolfe. 2018. Differentiation of Gram-positive and Gram-negative clinical mastitis using daily milk component and activity sensor data. Journal of Dairy Science.
Steele, N., A. Dicke, A. De Vries, S. J. Lacy-Hulbert, R. R. White, and C. S. Petersson-Wolfe. 2018. Validation of prediction algorithms for early detection of clinical mastitis caused by Gram-positive and Gram-negative pathogens (POSTER). Proceedings of the 30th World Buiatrics Congress, 28 August - 1 September 2018, Sapporo, Japan
Chikazhe, T. L., C. Glassey, A. Romera, J. Kay, and R. Davidson. 2018. Managing palm kernel extract feeding to comply with milk fat standards in New Zealand. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Hendriks, S. J. 2018. Could precision technologies predict calving and ill-health in transition dairy cows? Vetscript
Romera, A. J., M. Neal, and B. Bos. 2018. Re-designing New Zealand dairy farming. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Edwards, J. P. 2018. A comparison of profitability between herds milked once or twice a day. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Spaans, O. K., K. A. Macdonald, M. Neal, M. J. Auldist, J. A. S. Lancaster, A. M. Bryant, G. J. Doole, and J. R. Roche. 2018. A case study: Altering month of calving affects economic performance in a temperate pasture-based dairy system. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Srinivasan, M. S., C. Muller, M. Neal, R. Measures, C. Rajanayaka, and G. Elley. 2018. A tool to compare scenarios for various irrigation approaches under diverse soil plant available water conditions (ABSTRACT). Proceedings of the New Zealand Hydrological Society Conference, 4-7 December, Christchurch, New Zealand
Flay, H., B. Kuhn-Sherlock, K. Macdonald, M. Camara, N. Lopez-Villalobos, D. Donaghy, and J. R. Roche. 2018.Selecting cattle for low residual feed intake did not affect daily methane production, but increased methane yield. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
McCahon, K., O. Spaans, M. Neal, C. Boom, and J. R. Roche.2018. Profit variability in dairy systems with differing feed bases and supplement use - a Northland case study. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Edwards, P., I. Pinxterhuis. 2018.Identifying research priorities for establishing plantain on-farm. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Dela Rue, B. T., C. R. Eastwood, J. P. Edwards, and S. Cuthbert. 2018. A combination of automation technologies in rotary dairies was associated with increased labour efficiency but not milking throughput. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand.
Chapman, D., K. Macdonald, C. Glassey, I. Pinxterhuis, P. Edwards, and P. Beukes.2018. Relationships between nitrogen inputs, outputs in product, and surpluses in New Zealand dairy systems. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Dalley, D., P. Edwards, J. Kay, and W. Ritchie.2018. Effect of winter crop on colostrum quality of dairy cattle. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Hendriks, S. J., C. V. C. Phyn, S.-A. Turner, K. R. Mueller, B. Kuhn-Sherlock, D. J. Donaghy, and J. R. Roche. 2018. Effect of weather on activity and lying behaviour in clinically healthy grazing dairy cows during the transition period. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Neal, M. J. R. Roche. 2018. Profitable and resilient pasture-based dairy farm businesses in New Zealand. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Chapman, D., I. Pinxterhuis, S. Ledgard, and T. Parsons. 2018. White clover or nitrogen fertilizer for dairying under nitrate leaching limits?Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Gupta, S., M. Crookenden, S. McCoard, M. Khan, C. Phyn, C. Burke, J. Roche, and A. Heiser. 2018. Measuring immunocompetence in dairy cattle. Proceedings of the Australasian Dairy Science Symposium, 21-23 November, Palmerston North, New Zealand
Febria, C., J. Harding. 2018.A new tool to reduce drain flooding and reduce nutrients coming off farm: the two-stage channel. Technical Series.Technical Series
Griffiths, W. M., C. G.Roach, and D. F.Chapman. 2018.Should a feeding value trait be included in forage evaluation indexes? Grass and Forage Science
Neal, M., S. Woodward. 2018.Identifying the potential for pasture and crop eaten. Technical Series
M. A. Crookenden, K.M. Moyes, B. Kuhn-Sherlock, K. Lehnert, C. G. Walker, J. J. Loor, M. D. Mitchell, A. Murray, V. S. R. Dukkipatti, M. Vailati-Riboni, A. Heiser, and J. R. Roche. 2018.Transcriptomic analysis of circulating neutrophils in metabolically stressed peripartal grazing dairy cows (POSTER). ADSA 35th Discover Conference
Cichota, R., Hendriks, S. J., C.V.C. Phyn, S.-A. Turner, K.M. Mueller, B. Kuhn-Sherlock, D.J. Donaghy, J.M. Huzzey, and J.R. Roche. 2018. Lying behavior and activity during the transition period of clinically healthy grazing dairy cows. Journal of Dairy Science
R. McAuliffe, J. Lee, E. Minneee, K. Martin, H.E. Brown, D.J. Moot. 2018. Forage chicory model: development and evaluation (ABSTACT). Field Crops Research
Edwards, J.P., O.K. Spaans, M. Neal, K.A. Macdonald, and J.R. Roche.2018. Relative profitability between dairy cow breeds is affected by fat and protein values in pasture-based dairy farm systems (short communication). Journal of Dairy Science
Chapman, D. 2018. Science snapshot: Does sowing rate affect pasture persistence? Technical Series
Minnee, E. M. K., C. DeKlein, D. Dalley. 2018. Plantain - helping farmers achieve environmental targets. Technical Series
Stephens, T., A. Wright-Stow. 2018. Riparian management does improve water quality: the science behind the aciton. Technical Series
Lacy-Hulbert, S. J. 2018.Using dry cow antibiotics responsbily. Technical Series
Crookenden, M.A., C.V.C. Phyn, S.A.A. Turner, C.R. Burke, A. Heiser, and J.R. Roche. 2019. Feeding synthetic zeolite to transition diary cows alters neutrophil function and gene expresssion. Journal of Dairy Science
Meier, S., R. Handcock, L.R. McNaughton, P.R. Amer, P.R. Beaton, J.R. BryanK.G Dodds, R. Spelman, J.R. Roche, and C.R. Burke. 2019. Low genetic merit for fertility is associated with delayed onset of puberty and reduced reproductive performance in heifers. Journal of Dairy Science.
McDougall, S., J. Williamson, J. Lacy-Hulbert. 2019. Cow and quarter selection for DCT using the Rapid Mastitis Test. IDF International Conference on Mastitis Control, Copenhagen 2019
Lacy-Hulbert, S. J. , J.H. Williamson, N. Botha, B. Kuhn-Sherlock, S. McDougall. 2019. Social sciences and antimicrobial usage. IDF International Conference on Mastitis Control, Copenhagen 2019
Burggraaf, V.T., G.R. Rennie, P. Edwards, I. Pinxterhuis. 2019. A case study of the effects of diet and winter management on dairy production, profit and nitrate leaching in Rotorua. NZSAP.
Burggraaf, V.T., G.R. Rennie, P. Edwards, I. Pinxterhuis. 2019. Meeting nitrogen discharge allowances on a Rotorua diary farm - a case study. FLRC.
Bryant, R.H., T. Zwart, G. Greer, J. Casey, K. Solley, I. Pinxterhuis4, A. Horrocks, R. Pellow. 2019. Conventional or Albrecht-Kinsey fertiliser approach in a commercial scale dairy farm systems comparison. NZSAP Conference.
Knook, J., R. Dynes, I. Pinxterhuis, C. A.M. de Klein, V. Eory, M. Brander, D. Moran. 2019. An inductive behavioural typology of farmer decisions-around diffuse water pollution reduction practices. Agriculture and Human Values
Dalley, D., D. Waugh, A Griffin, C. Higham, J. de Ruiter, B. Malcolm. 2019. A comparison of fodder beet and maize silage as supplements to pasture in late lactation to increase milk production and reduce urinary nitrogen excretion. NZ Journal of Agricultural Research.
Steele, N.M., T. H. Swartz, K. M. Enger, H. Schramm, R. R. Cockrum,S. J. Lacy-Hulbert,R. R. White, S. Nordstrom, J. Hogan, C. S. Petersson-Wolfe. 2019. JDS.
Steele, N.M., A. Dicke, A. De Vries, S. J. Lacy-Hulbert, D. Liebe, R. R. White, C. S. Petersson-Wolfe. 2019. Evaluation of mastitis detection models for identifying Gram-negative and Gram-positive clinical mastitis cases. JDS.
Mason, M.A., E.L. Cuttance, R.A. Laven, C.V.C. Phyn. 2019. Replacement heifer mortality from weaning until second mating in seasonal-calving, pasture-based dairy herds in New Zealand. JDS.
Bryant, R.H.. P. Edwards, J. Kay, A. Clement, C. Thomas. 2019. Change in nutritive value of mown and standing pasture throughout a grazing bout. NZSAP.
DeWitt, K. 2019. Help your clients level up their calf care. DCV Conference
Saunders, K., H. Thoday. 2019. Defining world leading animal care. DCV Conference
Levelink. M., K. Saunders. 2019. Positive welfare workshop for Dairy sector rural professionals. DCV Conference
McGowan, J. 2019. Early Response Service: working together to support at-risk dairy animals and farmers. DCV Conference.
Williams, I., P. Beukes, R. Densley. 2019. Dedicated cropping blocks within dairy farms: using known mitigation strategies at a farm systems level. FLRC.
Spaans, O,. 2019. Cow breed and comparative stocking rate interact to affect profit. Technical Series.
Bates, A., J. McGowan, K. Saunders. 2019. Improving local anaesthesia for calf disbudding. Technical Series.
S. Meier, C.V. Phyn. 2019. Heifer puberty: an early indicator of cow fertility. Technical Series.
Steele, N.M. 2019. Making use of big data for mastitis detection. Technical Series.
Burke, C., S. Meier, C.V. Phyn, M. Stephen, J. Bryant, P. Amer, J. Roche. 2019. Finding new traits to improve genetic merit for cow fertility. DCV Conference.
Tennent, S. 2019. InCalf into the future. DCV Conference.
McDougall, S., J. Willaimson, J. Lacy-Hulbert. 2019. Selection for DCT using the Rapid Mastitis Test. DCV Conference
Chikazhe, T., M. Neal, P. Bird. 2019. Modelling the economic and evnironmental implications of reducing biosecurity risk by changing to a self-contained dairy grazing system in NZ. Journal of NZ Grasslands.
Almughlliq, F.B., Yong Q. Koh1, H. N. Peiris, K. Vaswani, O. Holland, S. Meier, J.R. Roche, C.R. Burke, M.A. Crookenden, B.J. Arachchige, S. Reed, M.D. Mitchell. 2019. Circulating exosomes may identify biomarkers for cows at risk for metabolic dysfunction. Science Signalling.
Reed, C., S. Meier, C.R. Burke, J. Pitman. 2019. The effect of genetic merit for fertility and lactational status on oocyte quality and the follicular microenvironment in dairy cows. Poster.
Ludemann, C.I., D.F. Chapman. 2019. Inclusion of persistence in the DairyNZ Forage Value Index. Journal of NZ Grasslands.
Beukes, P.C., A.J. Romera, K. Hutchinson, T.J. van der Weerden, C de Klein, R.A. Dynes. Greenhouse gas emissions and profitability of dairy systems aimed at reducing nitrate leaching. GGAA Conference, Brazil.
Woodward, S.J.R., P.C. Beukes, M.D. Hanigan. 2019. Molly reborn in C++ and R. MODNUT 2019.
Hendriks, S.J., C.V.C Phyn, S-A. Turner, K.M. Mueller, B. Kuhn-Sherlock, D.J. Donaghy, J.. Huzzey, J.R. Roche. 2019. Current and future opportunities for using precision technologies as prognostic tools in dairy cows. ANZCVS.
Bryant, R.H., M. Dodd, A. Moorhead, P. Edwards, I. Pinxterhuis. 2019. Establishment of plantain into existing pastures. Journal of NZ Grasslands.
Stephen, M. 2019. Novel Phenotypes to improve the rate of genetic gain in fertility for dairy cattle in New Zealand. Interbull Conference.
Woodward, S.J.R., M.B. Neal, P.S. Cross. 2019. Remote identification of pasture growth and grazing. Journal of NZ Grasslands.
Eastwood, C., B.T. Dela Rue. 2019. Developing decision support systems for pasture and rangeland management. Chapter in book of same name published by Burleigh-Dodds Publishers.
Dodd, M., R. Moss, I. Pinxterhuis. 2019. A paddock survey of on-farm plantain use. Journal of NZ Grasslands
Anderson, G., M. Rawlings, Z Lunniss, L. McNaughton, L. Rossi, C. Wims, C. Roach, C. Ludemann. 2019. The effect of botanical composition data on the accuracy of satellite pasture biomass estimates. Journal of NZ Grasslands.
Minnee, E.M.K., B. Kuhn-Sherlock, I.J.B. Pinxterhuis, D.F. Chapman. 2019. Meta-analyses comparing the nutritional composition of perennial ryegrass (Lolium perenne) and plantain (Plantago lanceolata) pastures.Journal of NZ Grasslands.
Neal, M.B., Woodward, S.J.R., Dela Rue, B.T. 2019. Identifying the pasture potential for New Zealand dairy farms. Journal of NZ Grasslands.
Berg, D.K., A. Ledgard, M. Donnison, R. McDonald, J.L. Juengel, H. Henderson, S. Meier, C.R. Burke. 2019. The first week following insemination is the period of major conception failure in pasture-grazed dairy cows. JDS.
Bryant, R.H., P. Edwards, J. Kay, A. Clement, C. Thomas. 2019. Change in herbage nutritive value of mown and standing pasture under rotational grazing. NZ Journal of Animal Science and Production 2019 Vol 79
Chapman, D.F., G.P Cosgrove, B. Kuhn-Sherlock, D.R. Stevens, J.M. Lee, L. Rossi. 2019. Scaling issues in the interpretation of dry matter yield differences among perennial ryegrass (Lolium perenne) cultivars. Journal of NZ Grasslands
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Peer Reviewed Journal Publications 2016-17
Almughlliq, F. B., Y. Q. Koh, H. N. Peiris, K. Vaswani, S. McDougall, E. M. Graham, C. R. Burke, and M. D. Mitchell. 2017. Effect of exosomes from plasma of dairy cows with or without an infected uterus on prostaglandin production by endometrial cell lines. Journal of Dairy Science 100(11): 9143-9152.
Chapman, D. F. , L. Rossi, J. M. Lee, G. R. Edwards, A. J. Popay, M. N. McNeill, D. J. Wilson, and N. Bell. 2018. Implications of grass-clover interactions in dairy pastures for forage indexing systems. 4. Canterbury. New Zealand Journal of Agricultural Research 61: 204-229.
Chapman, D. F., J. M. Lee, L. Rossi, G. P. Cosgrove, D. R. Stevens, J. R. Crush, W. M. King, G. R. Edwards, and A. J. Popay. 2018. Implications of grass-clover interactions in dairy pastures for forage value indexing systems. 1. Context and rationale. New Zealand Journal of Agricultural Research 61: 119-146.
Chapman, D. F., J. R. Crush, J. M. Lee, G. P. Cosgrove, D. R. Stevens, L. Rossi, A. J. Popay, G. R. Edwards, and W. M. King. 2018. Implications of grass-clover interactions in dairy pastures for forage value indexing systems. 6. Cross-site analysis and general discussion. New Zealand Journal of Agricultural Research 61: 255-284.
Crookenden, M. A., C. G. Walker, B. Kuhn-Sherlock, A. Murray, V. S. R. Dukkipati, A. Heiser, and J. R. Roche. 2017. Technical note: Evaluation of endogenous control gene expression in bovine neutrophils by reverse transcriptase-quantitative PCR using microfluidics gene expression arrays. Journal of Dairy Science 100(8): 6763-6771.
Crookenden, M. A., C. G. Walker, H. Peiris, Y. Koh, F. Almughlliq, K. Vaswani, S. Reed, A. Heiser, J. J. Loor, J. K. Kay, S. Meier, S.S. Donkin, A. Murray, V.S.R. Dukkipati, J. R. Roche, and M. D. Mitchell. 2017. Effect of circulating exosomes from transition cows on Madin-Darby bovine kidney cell function. Journal of Dairy Science 100(7): 5687-5700.
Crush, J. R, J. M. Lee, G. P. Cosgrove, L. Rossi, D. F. Chapman, and D. R. Stevens. 2018. Foliar macronutrient concentrations of eight perennial ryegrass (Lolium perenne L.) cultivars grown in four regions in New Zealand. New Zealand Journal of Agricultural Research 61: 285-300.
Crush, J. R, J. M. Lee, G. P. Cosgrove, L. Rossi, D. F. Chapman, and D. R. Stevens. 2018. Foliar micronutrient concentrations of eight perennial ryegrass (Lolium perenne L.) cultivars grown in four regions in New Zealand. New Zealand Journal of Agricultural Research 61: 301-311.
Cuttance, E. L., W. A. Mason, J. McDermott, R. A. Laven, S. McDougall, and C. V. C. Phyn. 2017. Calf and replacement heifer mortality from birth until weaning in pasture-based dairy herds in New Zealand. Journal of Dairy Science 100(10): 8347-8357.
Cuttance, E. L., W. A. Mason, R. A. Laven, J. McDermott, and C. V. C. Phyn. 2017. Prevalence and calf-level risk factors for failure of passive transfer in dairy calves in New Zealand. New Zealand Veterinary Journal 65(6): 297-304.
Dalley, D. E., B. J. Malcolm, E. Chakwazira, and J. M. de Ruiter. 2017. Range of quality characteristics of New Zealand forages and implications for reducing the nitrogen leaching risk from grazing dairy cows. New Zealand Journal of Agricultural Research 60(3): 319-332.
Dennis, N. A., K. Stachowicz, B. Visser, F.S Hely, D. K. Berg, N.C. Friggens, P.R. Amer, S. Meier, and C.R. Burke. 2018. Combining genetic and physiological data to identify predictors of lifetime reproductive success and the effects of selection on these predictors on underlying fertility traits. Journal of Dairy Science 101(4): 3176-3192.
Gregorini, P., F. D. Provenza, J. J. Villalba, P. C. Beukes, and M. J. Forbes. 2018. Diurnal patterns of urination and drinking by grazing ruminants: A development in a mechanistic model of a grazing ruminant, MINDY. The Journal of Agricultural Science 156(1): 71-81.
Higham, C. D., D. Horne, R. Singh, B. Kuhn-Sherlock, and M. R. Scarsbrook. 2017. Temporal and spatial water use on irrigated and non-irrigated pasture-based dairy farms. Journal of Dairy Science 100(8): 6772-6784.
Kerslake, J. I., P. R. Amer, P. L. O'Neill, S. L. Wong, J. R. Roche, and C. V. C. Phyn. 2018. Economic costs of recorded reasons for cow mortality and culling in a pasture-based dairy industry. Journal of Dairy Science 101(2): 1795-1803.
Koh, Y, Q., H. N. Peiris, K. Vaswani, S. Meier, C. R. Burke, K. A. Macdonald, J. R. Roche, F. Almughlliq, B. J. Arachchige, S. Reed, and M. D. Mitchell. 2017. Characterization of exosomes from body fluids of dairy cows. Journal of Animal Science 95: 3893-3904.
Laurenson, S., R. Monaghan, T. Orchiston, and D. Dalley. 2017. Assessing the environmental implications of applying dairy cow effluent during winter using low rate and low depth application methods. New Zealand Journal of Agricultural Research 60(4): 449-469.
Laurenson, S., T. J. van der Weerden, P. C. Beukes, and I. Vogeler. 2017. Evaluating the economic and production benefit of removing dairy cows from pastures in response to wet soil conditions. New Zealand Journal of Agricultural Research 60(3): 223-244.
Lee, J. M., D. F. Chapman, C. M. Wims, W. M. Griffiths, A. J. Popay, D. J. Wilson, and N. L. Bell. 2018. Implications of grass-clover interactions in dairy pastures for forage value indexing systems. 2. Waikato. New Zealand Journal of Agricultural Research 61: 147-173.
Littlejohn, M. D., S-A Turner, C. G. Walker, S. D. Berry, K. Tiplady, R. G. Sherlock, G. Sutherland, S. Swift, D. Garrick, S. J. Lacy-Hulbert, S. McDougall, R. J. Spelman, R. G. Snell, and J. E. Hillerton. 2018. Identification of an immune modulation locus utilising a bovine mammary gland infection challenge model. Journal of Dairy Research 85(2): 185-192.
Macdonald, K. A., J. W. Penno, J. A. S. Lancaster, A. M. Bryant, J. M. Kidd, and J. R. Roche. 2017. Production and economic responses to intensification of pasture-based dairy production systems. Journal of Dairy Science 100(8): 6602-6619.
Mason, N. W. H., D. J. Palmer, A. Romera, D. Waugh, and P. L. Mudge. 2017. Combining field experiments and predictive models to assess potential for increased plant diversity to climate-proof intensive agriculture. Ecology and Evolution 7(13):4907-4918.
McDougall, S., S. Leane, S. T. Butler, J. R. Roche, and C. R. Burke. 2018. Effect of altering the type of dietary carbohydrate early postpartum on reproductive performance and milk production in pasture-grazed dairy cows. Journal of Dairy Science 101(4): 3433-3446.
Monaghan, R. M., S. Laurenson, D. E. Dalley, and T. S. Orchiston. 2017. Grazing strategies for reducing contaminant losses to water from forage crop fields grazed by cattle during winter. New Zealand Journal of Agricultural Research 60(3): 333-348.
Phyn, C. V. C., K. Stelwagen, S. R. Davis, C. D. McMahon, J. M. Dobson, and K. Singh. 2017. Tight junction protein abundance and apoptosis during involution of rat mammary glands. Journal of Cellular Physiology 232(8): 2075-2082.
Roche, J. R., D. P. Berry, A. M. Bryant, C. R. Burke, S. T. Butler, P. G. Dillon, D. J. Donaghy, B. Horan, K. A. Macdonald, and K. L. Macmillan. 2017. A 100-Year Review: A century of change in temperate grazing dairy systems. Journal of Dairy Science 100(12): 10189–10233.
Singh, K., C. V. C. Phyn, M. Reinsch, J. M. Dobson, K. Oden, S. R. Davis, K. Stelwagen, H. V. Henderson, and A. J. Molenaar. 2017. Temporal and spatial heterogeneity in milk and immune-related gene expression during mammary gland involution in dairy cows. Journal of Dairy Science 100(9): 7669-7685.
Spaans, O. K., K. A. Macdonald, J. A. S. Lancaster, A. M. Bryant, and J. R. Roche. 2018. Dairy Cow Breed Interacts with Stocking Rate in Temperate Pasture-based Dairy Production Systems. Journal of Dairy Science 101(5): 4690-4702.
Tozer, K. N., E. M. K. Minnee, R. M. Greenfield, and C. A. Cameron. 2017. Effects of pasture base and species mix complexity on persistence and weed ingress in summer-dry dairy pastures. Crop and Pasture Science 68(6): 561-573.
Tozer, K. N., K. Carswell, W. M. Griffiths, J. R. Crush, C. A. Cameron, D. F. Chapman, A. Popay and W. King. 2017. Growth responses of diploid and tetraploid perennial ryegrass (Lolium prenne) to soil-moisture deficit, defoliation and a root-feeding invertebrate. Crop and Pasture Science 67(7): 632-642.
Van Der Weerden, T. J., S. Laurenson, I. Vogeler, P. C. Beukes, S. M. Thomas, R. M. Rees, C. F. E. Topp, G. Lanigan, and C. A. M. de Klein. 2017. Mitigating nitrous oxide and manure-derived methane emissions by removing cows in response to wet soil conditions. Agricultural Systems 156: 126-138.
Vereijssen, J., M. S. Srinivasan, S. Dirks, S. J. Fielke, C. Jongmans, N. M. Agnew, L. Klerkx, J. B. Pinxterhuis, P. Edwards, R. Brazendale, N. Botha, and J. A. Turner. 2017. Addressing complex challenges using a co-innovation approach: Lessons from five case studies in the New Zealand primary sector. Outlook on Agriculture 46(2): 108-116
Vibart, R., A. Mackay, A. Wall, I. Vogeler, J. Beautrais, and D. Dalley . 2017. A farm-scale framework to assess potential farm- and regional-scale implications of removing palm-kernel expeller as a supplementary feed for dairy cows. Animal Production Science 57(7): 1336-1342.
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Peer Reviewed Journal Publications 2015-16
Davis, S. R., S-A. Turner, V. Obolonkin, K. Tiplady, R. J. Spelman, and C.V.C. Phyn. 2015. Lactation traits associated with short- and long-term once-daily milking performance in New Zealand crossbred dairy cattle. Journal of Dairy Science 98(9): 6094-6107
de Haas, Y., J. E. Pryce, M. P. L. Calus, E. Wall, D. P. Berry, P. Løvendahl, N. Krattenmacher, F. Miglior, K. Weigel, D. Spurlock, K. A. Macdonald, B. Hulsegge, and R. F. Veerkamp. 2015. Genomic prediction for dry matter intake of dairy cattle from an international data set consisting of research herds in Europe, North America and Australasia. Journal of Dairy Science 98(9): 6522-6534Doole, G. J., and A, J, Romera. 2015. Trade-offs between profit, production, and environmental footprint on pasture-based dairy farms in the Waikato region of New Zealand. Agricultural Systems 141: 14-23
Grala, T. M., R. R. Handley, J. R. Roche, C. G. Walker, C. V. C. Phyn, and J. K. Kay. 2016. Once-daily milking during late lactation in pasture-fed dairy cows has minor effects on feed intake, body condition score gain, and hepatic gene expression. Journal of Dairy Science 99(4): 3041-3055
Gregorini, P., G. C. Waghorn, B. Kuhn-Sherlock, A. J. Romera, and K. A. Macdonald. 2015. Short-Communication: Grazing pattern of dairy cows that were selected for divergent residual feed intake as calves. Journal of Dairy Science 98(9): 6486-6491
Gregorini, P., P. Beukes, G. Waghorn, D. Pacheco, and M Hanigan. 2015. Development of an improved representation of rumen digesta outflow in a mechanistic and dynamic model of a dairy cow, Molly. Ecological Modelling 313: 293-306
Gregorini, P., P. C. Beukes, D. E. Dalley, and A. J. Romera. 2016. Screening for diets that reduce urinary nitrogen excretion and methane emissions while maintaining or increasing production by dairy cows. Science of the Total Environment 551-552: 32-41
Hammond, K. J., G. C. Waghorn, and R. Hegarty. 2016. The GreenFeed system for measurement of enteric methane emissions from cattle. Animal Production Science 56(3): 181-189
Jenkins, G. M., P. Amer, K. Stachowicz, and S. Meier. 2016. Phenotypic associations between gestation length and production, fertility, survival and calf traits. Journal of Dairy Science 99(1): 418-426
Kamphuis, C., B. Dela Rue, and C. Eastwood. 2016. Field validation of protocols developed to evaluate in-line mastitis-detection systems. Journal of Dairy Science 99(2): 1619-1631
Lange, J., A. McCarthy, J. Kay, S. Meier, C. Walker, M. A. Crookenden, M. D. Mitchell, J. J. Loor, J. R. Roche, and A. Heiser. 2016. Prepartum feeding level and body condition score affect immunological performance in grazing dairy cows during the transition period. Journal of Dairy Science 99(3): 2329-2338
Lee, J. M., E. M. K. Minnee, and C. E. F. Clark. 2015. Patterns in non-structural carbohydrate and nitrogen reserves in chicory (Cichorium intybus L.) and plantain (Plantago lanceolata L.) during regrowth in summer. Crop & Pasture Science 66(10): 1071-1078
Malcolm, B. J., K. C. Cameron, G. R. Edwards, H. J. Di, J. M. de Ruiter, and D. E. Dalley. 2016. Nitrate leaching losses from lysimeters simulating winter grazing of fodder beet by dairy cows. New Zealand Journal of Agricultural Research 59(2): 194-203
Mason, N. W. H., K. Orwin, S. Lambie, S. L. Woodward, T. McCready, and P. Mudge. 2016. Leaf economics spectrum - productivity relationships in intensively grazed pastures depend on dominant species identity. Ecology and Evolution 6(10): 3079-3091
Provenza, F. D., M. Meuret, and P. Gregorini. 2015. Our landscapes, our livestock, ourselves: Restoring broken linkages among plants, herbivores, and humans with diets that nourish and satiate. Appetite 95: 500-519
Roche, J. R., S. Meier, A. Heiser, M. D. Mitchell, C. G. Walker, M. A. Crookenden, M. Vailalti Riboni, J. J. Loor, and J. K. Kay. 2015. Effects of precalving body condition score and prepartum feeding level on production, reproduction, and health parameters in pasture-based transition dairy cows. Journal of Dairy Science 98(10): 7164-7182
Sargeant, K., and M. Paine. 2015. Building a robust capability framework to face the fast-growing challenges of the New Zealand dairy industry. Rural Extension & Innovation Systems Journal 11(1): 210-217
Vailati Riboni, M., M. Kanwal, O. Bulgari, S. Meier, N. V. Priest, C. R. Burke, J. K. Kay, S. McDougall, M. D. Mitchell, C. G. Walker, M. Crookenden, A. Heiser, J. R. Roche, and J. J. Loor.. 2016. Body condition score and plane of nutrition prepartum affect adipose tissue transcriptome regulators of metabolism and inflammation in grazing dairy cows during the transition period. Journal of Dairy Science 99(1): 758-770
Waghorn, G. C., A. Jonker, and K. A. Macdonald. 2016. Measuring methane from grazing dairy cows using GreenFeeds. Animal Production Science 56(3): 252-257
Waghorn, G. C., and J. Caradus. 2016. Legume traits for selection to benefit ruminant production. Legume perspectives 12: 5-7
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Peer Reviewed Journal Publications 2014-15
Adler, A. A, G. J. Doole, A. J. Romera, and P. C. Beukes. 2015. Managing greenhouse gas emissions in two major dairy regions of New Zealand: A system-level evaluation. Agricultural Systems 135: 1-9.
Akbar, H., T. M. Grala, M. Vailati Riboni, F. C. Cardoso, G. Verkerk, J. McGowan, K. Macdonald, J. Webster, K. Schutz, S. Meier, L. Matthew, J. R. Roche, and J. J. Loor. 2015. Body condition score at calving affects systemic and hepatic transcriptome indicators of inflammation and nutrient metabolism in grazing dairy cows. Journal of Dairy Science 98: 1019-1032.
Berry, D. P., M. P. Coffey, J. E. Pryce, Y. de Haas, P. Løvendahl, N. Krattenmacher , J. J. Crowley, Z. Wang, D. Spurlock, K. Weigel, K. Macdonald, and R. F. Veerkamp. 2014. International genetic evaluations for feed intake in dairy cattle through the collation of data from multiple sources. Journal of Dairy Science 97: 3894-3905.
Beukes, P. C. , P. Gregorini, A. J. Romera, S. L. Woodward, E. N. Khaembah, D. F. Chapman, F. Nobilly, R. H. Bryant, G. R. Edwards, and D. A. Clark. 2014. The potential of diverse pastures to reduce nitrogen leaching on New Zealand dairy farms. Animal Production Science 54: 1971-1979.
Bowley, F. E., R. E. Green, P. R. Amer, and S. Meier. 2015. Novel approaches to genetic analysis of fertility traits in New Zealand dairy cattle. Journal of Dairy Science 98: 2005-2012.
Bryant, R. H., D. E. Dalley, J. Gibbs, and G. R. Edwards. 2014. Effect of grazing management on herbage protein concentration, milk production and nitrogen excretion of dairy cows in mid-lactation. Grass and Forage Science 69: 644-654.
Chapman, D. F. , G. R. Edwards, A. V. Stewart, M. McEvoy, M. O’Donovan, and G. C. Waghorn. 2014. Valuing forages for genetic selection: what traits should we focus on? Animal Production Science 55: 869-882.
Cheng, L., S. L. Woodward, R. J. Dewhurst, H. Zhou, and G. R. Edwards. 2014. Nitrogen partitioning, energy use efficiency and isotopic fractionation of cows differed in genetic merit fed low quality pasture in late lactation. Animal Productioon Science 54: 1651-1656.
Crookenden, M. A., K. S. Mandok, T. M. Grala, C. V. C. Phyn, J. K. Kay, S. L. Greenwood, and J. R. Roche. 2015. Source of metabolizable energy affects gene transcription in metabolic pathways in adipose and liver tissue of nonlactating, pregnant dairy cows. Journal of Animal Science 93: 685-698.
De Boer, M. W., S. J. LeBlanc, J. Dubuc, S. Meier, W. Heuwieser, S. Arlt, R. O. Gilbert, and S. McDougall. 2014. Invited review: Systematic review of diagnostic tests for reproductive-tract infection and inflammation in dairy cows. Journal of Dairy Science 97: 3983-3999.
Doole, G. J., and A. J. Romera. 2014. Cost-effective regulation of nonpoint emissions from pastoral agriculture: a stochastic analysis. Australian Journal of Agricultural and Resource Economics 58: 471-494.
Doole, G. J., and A. J. Romera. 2014. Implications of a nitrogen leaching efficiency metric for pasture-based dairy farms. Agricultural Water Management 142: 10-18.
Edwards, J. P., J. G. Jago, and N. Lopez-Villalobos. 2014. Principles for maximising operator efficiency and return on investment in rotary dairies. Animal Production Science 54: 1102-1108.
Edwards, J. P., B. T. Dela Rue, and J. G. Jago. 2015. Evaluating rates of technology adoption and milking practices on New Zealand dairy farms. Animal Production Science 55: 702-709.
Forbes, M. J., and P. Gregorini. 2015. The catastrophe of meal eating. Animal Production Science 55: 350-359.
Gregorini, P., J. Galli, A. J. Romera, G. Levy, K. A. Macdonald, H. H. Fernandez, and P. C. Beukes. 2014. Incorporating a prediction of postgrazing herbage mass into a whole-farm model for pasture-based dairy systems. Journal of Dairy Science 97: 4354-4366.
Gregorini, P., J. J. Villalba, F. D. Provenza, P. C. Beukes, and J. M. Forbes. 2015. Modelling preference and diet selection patterns by grazing ruminants: a development in a mechanistic model of a grazing dairy cow, MINDY. Animal Production Science 55: 360-375.
Heiser, A., A. McCarthy, N. Wedlock, S. Meier, J. Kay, C. Walker, M. A. Crookenden, M. D. Mitchell, S. Morgan, K. Watkins, J. J. Loor, and J. R. Roche. 2015. Grazing dairy cows had decreased interferon-γ, tumor necrosis factor, and interleukin-17, and increased expression of interleukin-10 during the first week after calving. Journal of Dairy Science 98: 937-946.
Hills, J. L. , S. C. Garcia, B. Dela Rue, and C. E. F. Clark. 2014. Individualised feeding of concentrate supplements to pasture-based dairy cows/Limitations and potential for individualised feeding of concentrate supplements to grazing dairy cows. Animal Production SCience 55: 922-930.
Hills, J. L., W. J. Wales, F. R. Dunshea, S. C. Garcia, and J. R. Roche. 2015. Invited Review: An evaluation of the likely effects of individualized feeding of concentrate supplements to pasture-based dairy cows. Journal of Dairy Science 98: 1363-1401.
Jonker, A. , G. Molano, C. Antwi, and G. Waghorn. 2014. Feeding lucerne silage to beef cattle at three allowances and four feeding frequencies affects circadian patterns of methane emissions, but not emissions per unit of intake. Animal Production Science 54: 1350-1353.
Kamphuis, C., B. Dela Rue, S.-A. Turner, and S.-F. Petch. 2015. Devices used by automated milking systems are similarly accurate in estimating milk yield and in collecting a representative milk sample compared with devices used by farms with conventional milk recording. Journal of Dairy Science 98: 3541-3557.
Kay, J. K., J. J. Loor, A. Heiser, J. McGowan, and J. R. Roche. 2014. Managing the grazing dairy cow through the transition period: A review. Animal Production Science 55: 936-942.
Kirshbaum, M. U. F., S. Rutledge, I. A. Kuijper, P. L. Mudge, N. Puche, A. M. Wall, C. G. Roach, L. A. Schipper, and D. I. Campbell. 2015. Modelling carbon and water exchange of a grazed pasture in New Zealand constrained by eddy covariance measurements. Science of the Total Environment 512-513: 273-286.
Lee, J. M., N. R. Hemmingson, E. M. K. Minnee, and C. E. F. Clark. 2015. Management strategies for chicory (Cichorium intybus) and plantain (Plantago lanceolata): Impact on dry matter yield, nutritive characteristics and plant density. Crop & Pasture Science 66: 168-183.
Mandok, K. S., J. K. Kay, S .L. Greenwood, J. P. MacNamara, M. Crookenden, R. White, S. Shields, G. R. Edwards, and J. R. Roche. 2014. Efficiency of use of metabolisable energy for body weight gain in pasture-based, nonlactating dairy cows. Journal of Dairy Science 97: 4639-4648.
Pacheco, D., G. Waghorn, and P. Janssen. 2014. Decreasing methane emissions from ruminants grazing forages: a fit with productive and financial realities? Animal Production Science 54: 1141-1154.
Phyn, C. V. C, J. K. Kay, A. G. Rius, S. R. Morgan, C. G. Roach, T. M. Grala, and J. R. Roche. 2014. Temporary alterations to postpartum milking frequency affect whole-lactation production and the energy status of pasture-grazed dairy cows. Journal of Dairy Science 97: 6850-6868.
Provenza, F. D., P. Gregorini, and P. C. F. Carvalho. 2015. Synthesis: Foraging decisions link plants, herbivores, and human beings. Animal Production Science 55: 411-425.
Ramsbottom, G. , B. Horan, D. P. Berry, and J. R. Roche. 2015. Factors associated with the financial performance of spring-calving, pasture-based dairy farms. Journal of Dairy Science 98: 3526-3540.
Roche, J. R., N. A. Dennis, K. A. Macdonald, C. V. C. Phyn, P. R. Amer, R. R. White, J. K. Drackley. 2014. Heifer rearing to optimise farm profitability/Growth targets and rearing strategies for replacement heifers in pasture-based systems: a review. Animal Production Science 55: 902-915.
Romera, A. J, and G. J. Doole. 2015. Optimising the interrelationship between intake per cow and intake per hectare. Animal Production Science 55: 384-396.
Romera, A. J, G. J. Doole, and E. N. Khaembah. 2015. Value of chicory crops to pasture-based dairy farms in the Waikato region of New Zealand. Journal of Agricultural Science 153: 124-137.
Scarsbrook, M. R., and A. R. Melland. 2014. Dairying and water quality issues in Australia and New Zealand. Animal Production Science 55: 856-868.
Soca, P., H. Gonzalez, H. Manterola, M. Bruni, D. Mattiauda, P. Chilibroste, and P. Gregorini. 2014. Effect of restricting time at pasture and concentrate supplementation on herbage intake, grazing behaviour and performance of lactating dairy cows. Livestock Science 170: 35-42.
Vailati Riboni, M., S. Meier, N. V. Priest, C. R. Burke, J. K. Kay, S. McDougall, M. D. Mitchell, C. G. Walker, M. Crookenden, A. Heiser, J. R. Roche, and J. J. Loor. 2015. Adipose and liver gene expression profiles in response to treatment with a nonsteroidal antiinflammatory drug after calving in grazing dairy cows. Journal of Dairy Science 98: 3079-3085.
Waghorn, G. C., K.A. Macdonald, and M. M. Verwoerd. 2014. Tissue mobilisation in Holstein-Friesian cattle selected for divergence in efficiency, defined as residual feed intake. Animal Production Science 54: 1254-1257.
Walker, C. G., S. Meier, H. Hussein, S. McDougall, C. R. Burke, J. R. Roche, and M. D. Mitchell. 2015. Modulation of the immune system during post-partum uterine inflammation. Physiological Genomics 47: 89-101.
Wedlock, D. N., B. M. Buddle, J. H. Williamson, S. J. Lacy-hulbert, S-A Turner, S. Subharat, and A. Heiser. 2014. Dairy cows produce cytokine and cytotoxic T cell responses following vaccination with an antigenic fraction from Streptococcus uberis. Veterinary Immunology and Immunopathology 160: 51-60.