Animal welfare can be negatively affected when dairy cattle experience heat stress.
Managing heat stress has become more of a challenge than ever before, due to the …

Heat stress can have large effects on most aspects of reproductive function in mammals.
These include disruptions in spermatogenesis and oocyte development, oocyte maturation …

† School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson,
AZ 85745‡ Department of Animal Science, Iowa State University, Ames, IA 50011|| Dairy …

During their separate evolution from Bos taurus, zebu cattle (Bos indicus) have acquired
genes that confer thermotolerance at the physiological and cellular levels. Cattle from zebu …

Summer heat stress (HS) is a major contributing factor in low fertility in lactating dairy cows
in hot environments. Although modern cooling systems are used in dairy farms, fertility …

3000 new references added since the first editionGives information necessary to produce
embryos totally through in vitro techniques Shows commercial applications of embryo and …

Establishment and maintenance of pregnancy is difficult in lactating dairy cows exposed to
heat stress because of reductions in estrous detection rate and the proportion of …

Two experiments were conducted to evaluate seasonal variation in oocyte competence in
Holstein cows and to test whether oocyte quality in summer is affected by the magnitude of …

Heat stress causes large reductions in fertility in lactating dairy cows. The magnitude and
geographical extent of this problem is increasing because improvements in milk yield have …

Global warming represents a major stressful environmental condition that compromises the
reproductive efficiency of animals and humans via a rise of body temperature above its …