Review your heat detection strategy each season, ensuring it includes careful planning, effective use of aids, keen observation, accurate record-keeping, and regular staff training.

Automated heat detection uses technology to identify cycling cows. Before investing, discover key considerations, such as understanding the reasons for using technology, how well it performs, the fit with your farming style, and your training needs.

Using heat detection aids efficiently will help ensure a successful mating period on your dairy farm. There are different heat detection aids for cows, including tail paint, heat mount detectors, electronic heat detection, and vasectomised bulls.

Wearable technologies (such as cow collars) are becoming a popular tool for assisting with reproductive management. In 2025, around 1 in 5 dairy farms are using wearables , mostly to help with heat detection, a factor in getting cows in calf.

More farmers are using wearables for heat detection and to ease pressure on skilled people at mating time. But do they lift repro results? Hear what the research says in this episode with DairyNZ’s Paul Edwards and CowSmart vet Line Ferriman.

Hear about early insights in DairyNZ’s heat stress trial at Scott Farm from experts Dr Charlotte Reed and Jac McGowan, plus current info and solutions for keepings cows comfortable and productive in hot conditions.

Heat stress in cows happens when they can't dissipate the heat they generate, leading to discomfort and lower milk yields. Unlike humans, cows can start feeling the stress at temperatures below 20°C.

Heat stress can negatively affect dairy cows in many ways. DairyNZ is researching methods of identifying when heat stress might occur to help farmers manage their herds and lessen its impact.

Automated mastitis detection (AMD) systems are technology tools used on dairy farms to identify signs of mastitis in cows by monitoring milk for specific indicators.

How does heat stress affect cows, what are some warning signs, and what can you do on farm to make life more comfortable for your cows?

Lameness is a cow health issue that requires timely detection and treatment. It affects the wellbeing of cows and people, taking time, energy and skill to treat. The DairyNZ lameness scoring system helps you spot early signs and monitor.

Fall Armyworm is a plant pest that can feed on over 350 plant species, particularly sweetcorn and maize. Its spread typically begins in December, so early detection and regular monitoring are key to protect your feed and prevent the pest’s spread.