Translations:Effects of climate change on livestock/28/en

Research in a humid tropical climate describes a more linear relationship, with every unit of heat stress reducing yield by 2.13%. In the intensive farming systems, daily milk yield per cow declines by 1.8 kg (4.0 lb) during severe heat stress. In organic farming systems, the effect of heat stress on milk yields is limited, but milk quality suffers substantially, with lower fat and protein content. In China, daily milk production per cow is already lower than the average by between 0.7 and 4 kg (1.5 and 8.8 lb) in July (the hottest month of the year), and by 2070, it may decline by up to 50% (or 7.2 kg (16 lb)) due to climate change. Some researchers suggest that the already recorded stagnation of dairy production in both China and West Africa can attributed to persistent increases in heat stress.