News / World News |
Cows and chickens ‘at risk’ from climate change
A study shows that dairy cows and chickens are the domestic animals at risk from the impacts of climate change—while African elephants, bats, zebrafish, Stony creek frogs and koalas were singled out as wildlife at risk.
“Resource-poor regions may not have adequate support mechanisms to alleviate the impacts of factors such as heat stress and massive droughts,” Edward Narayan, lead author and senior lecturer, School of Agriculture and Food Sustainability at the University of Queensland, Australia, told.
“Animals may not receive appropriate food, water and resources [which] will lead to cascading effects on food availability, shortages and food insecurity.
The scientists said heat stress on dairy cows resulted in a 35 per cent reduction in milk production—as it significantly impacted lactation, immune functionality, and calf health.
Under the review, chickens subjected to hot conditions had a lower quality of life and lower meat quality.
The welfare of birds, especially chickens under warmer conditions, was of great concern since they do not have the capacity to regulate heat due to a lack of sweat glands.
“Heat stress, brought on by combinations of temperature and relative humidity, can have huge effects on animal productivity, reducing the amount of milk, meat or eggs produced, with knock-on effects on prices of these products for consumers and for the food security of small-scale producers,” Philip Thornton, from the School of Geosciences at the University of Edinburgh, UK, told. (SciDev.Net)