Heat stress is a cause for concern for every herd throughout New Zealand, with negative impacts on milk production and animal health. Heat stress occurs when temperatures rise above 21C and humidity exceeds 70%, so a large proportion of New Zealand’s dairy cows are at risk during the
Heat stresses both cow and grass
With two sides to heat stress – the cow affected by the increase in temperature, and the effect the temperature has on the grass – it often occurs when pasture quality drops. When heat stress impacts the cow, it’s impacting the grass as well. (This is also sometimes called rye grass staggers).
Cows with heat stress experience a decrease in appetite, resulting in a reduction in energy intake. This has negative impacts on milk production, body condition, health, and pregnancy success.
How to reduce heat stress
There are many ways to reduce heat stress, including:
Agvance manufactures a range of products to combat heat stress. Check these out below and order
Are your cows becoming hot and bothered this summer?
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