title: Physiologic response to intense summer heat and its effect on the estrous cycle of nonlactating and lactating Holstein-Friesian cows in Arizona.
mesh_terms: D000818:Animals; D001130:Arizona; D001831:Body Temperature; D002417:Cattle / Q000502:physiology*; D004781:Environmental Exposure; D004971:Estrus; D005260:Female; D006339:Heart Rate; D006358:Hot Temperature; D006813:Humidity; D007774:Lactation; D010060:Ovulation; D011247:Pregnancy; D012007:Rectum / Q000502:physiology; D012119:Respiration; D012621:Seasons; D012881:Skin Temperature; D013696:Temperature; D013997:Time Factors; D014599:Uterus / Q000502:physiology; D014887:Weather