The use of the "summer to winter ratio" index, to assess the effect of summer heat stress on the performance of dairy cows in different regions of the USA
Israel Flamenbaum Ph. D / Cow Cooling Solutions, Ltd, Israel.
Summer heat stress causes significant economic losses to the U.S. livestock and especially the dairy industry. Different studies conducted in the United States indicate an annual loss of about $ 1.5 billion to the dairy US industry. This is due to unsuccessful confrontation of US dairy farmers with the heat stress problem. The losses differ of course, between different regions of the United States...