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Updated: Dec 25, 2025

Bovine Ovarian Cortex Tissue Culture
Published on: January 14, 2021
Local cooling of the ovary and its implications for heat stress effects on reproduction
F López-Gatius1, R H F Hunter2
1Agrotecnio Center, University of Lleida, 25198, Lleida, Spain; Transfer in Bovine Reproduction SLu, 22300, Barbastro, Spain.
Abstract:
The effects of season on the fertility of the dairy cow added to the metabolic stress of milk production are well known. We here present lactating dairy cows as a comparative model of this problem. This review examines the results of recent studies that have highlighted heat stress (HS) effects on pre-ovulatory follicles. From these studies, we draw information regarding the mechanisms giving rise to temperature gradients across reproductive tissues. Our review is completed by a discussion of approaches designed to reduce the negative effects of HS based on cooling strategies implemented before ovulation at or around estrus.
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