Heat stress influences low conception of dairy herds
Published:September 11, 2007
Summary
Summer heat stress is a main factor related to low conception rates in high producing dairy herds in warm areas worldwide. A research group of UAB Faculty of Veterinary Medicine has studied the impact of several climate variables on conception rates in high producing dairy cows in northeastern Spain by examining 10,964 inseminations. Reproductive efficiency has suffered a dramatic decrease since...
This is a fact well known for many years in Florida, USA, EVEN THOUGH THE REGION OF OKECHOBBEE, IS IN THE SUBTROPICS (AUGUST-SEPTEMBER) in Venezuela, in the Center region of Pourtuguesa State (West of Acarigua-Araure), FOR DECADES
HOLSTEIN & and high graded HOLSTEIN CAN NOT GET PREGNANT IN THE HOT-HUMID months of August-September( This area is close to the Equator).