- Dairy systems for environmental protection
Dairy farming is coming under increasing pressure to reduce its environmental footprint. DairyNZ has responded to the challenge of N pollution by identifying dairy systems that use more efficient practices to reduce wastage.
- High BW cows are more N efficient
The nitrogen (N) content of winter and spring pasture often exceeds cow requirements and much of the excess is excreted in the urine.
- Pasture diversity
The production focus of dairy farming has led to a limited range of plants being used - predominantly perennial ryegrass-white clover pastures with some brassicas and maize. Species diversity is a hot topic in grassland ecology.
- Strategies to reduce nitrogen leaching
The design of dairy systems with increased production and profit but lower N leaching presents a problem with an inherent contradiction.Generally higher production depends on more input to the system, whereas reduced N leaching generally requires lowering input.
- Recently published by DairyNZ
DairyNZ researchers publish their findings.
- Delving into DNA
In this series we explain how genes are used in the first step of making the required product from the ‘recipe’.
- Focus on international research
Brief summaries of key international science papers recently published.