Results 271 to 280 of about 61,834 (330)

Estrous Cycle and Ovulation in the Mare

Journal of the American Veterinary Medical Association, 1972
SUMMARY Length of estrous cycle and ovarian activity in the nonpregnant mare is related to season of the year and should not be characterized independently of season. Studies at the University of California have indicated that 75 to 85% of mares develop signs of estrus and ovulate from April through October, but these responses to endocrine activity ...
J P, Hughes, G H, Stabenfeldt, J W, Evans   +2 more
openaire   +2 more sources

The estrous cycle in the dog: A review

Theriogenology, 1977
Abstract Clinical, morphologic and hormonal changes throughout the estrous cycle in the dog are discussed in relation to the well established stages in this species — proestrus, estrus, metestrus and anestrus. Although most efforts in the past have been devoted to the period of reproduction, events throughout the remaining months of the cycle are ...
W, Jöchle, A C, Andersen
openaire   +2 more sources

Apoptosis in the Estrous and Menstrual Cycles

Journal of Mammary Gland Biology and Neoplasia, 1999
In the absence of pregnancy, the adult mammary gland is subjected to cyclic fluctuations of hormonal stimulation that constitute the estrous and menstrual cycles. The mammary epithelium responds to these systemic hormonal changes by regional proliferation, differentiation and cell death by apoptosis.
A C, Andres, R, Strange
openaire   +2 more sources

The Estrous Cycle of Coyotes

The Journal of Wildlife Management, 1976
The estrous cycle in coyotes (Canis latrans) is characterized by a long proestrus (2-3 months). Vaginal smear patterns associated with proestrus, estrus, and metestrus are described. Data from 41 adults indicated estrus begins about 13 March and persists for 10 days.
J. J. Kennelly, B. E. Johns
openaire   +1 more source

Control of the Estrous Cycle in the Mare

Veterinary Clinics of North America: Equine Practice, 1988
All current approaches to manipulating the reproductive biology of the nonpregnant mare are discussed.
openaire   +2 more sources