Results 231 to 240 of about 70,632 (246)
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Estrus characterization in superovulated cattle
Theriogenology, 1993Abstract Based on frequent examinations per rectum and on external signs of estrus, the intensity of estrus was characterized in 107 superovulated dairy cows and heifers. Three intensity groups were defined: strong (n=57), moderate (n=34), and weak (n=16). Frequent blood samples were obtained for analyses of estradiol-17β and LH.
Callesen, Henrik +2 more
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Induction and synchronization of estrus in dogs
Theriogenology, 2005Indications for estrus induction in the bitch include missed breeding opportunities or conception failure, the treatment of primary or secondary anestrus and synchronization of ovulation for embryo transfer programs. Reported methods for canine estrus induction include the use of synthetic estrogens (diethylstilbesterol), dopamine agonists ...
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Journal of Animal Science, 1996
The effectiveness of two estrus-detection methods (visual observation and radiotelemetric, pressure-sensitive, rump-mounted devices) was compared in peripubertal, crossbred yearling beef heifers. Heifers (n = 50) were fitted with a pressure-sensitive device affixed to their rumps to which a battery-operated radio transmitter was connected.
D. G. LeFever +4 more
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The effectiveness of two estrus-detection methods (visual observation and radiotelemetric, pressure-sensitive, rump-mounted devices) was compared in peripubertal, crossbred yearling beef heifers. Heifers (n = 50) were fitted with a pressure-sensitive device affixed to their rumps to which a battery-operated radio transmitter was connected.
D. G. LeFever +4 more
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Estrus Suppression in Performance Horses
Journal of Equine Veterinary Science, 2003E xpression of behavioral estrus, or heat, in mares can have a profound negative effect on training and performance. Mares begin to exhibit sporadic periods of estrus in February or March, with the onset of follicular development during the spring transition period. Estrus is normally expressed for 5 to 7 days out of the 21-day estrous cycle during the
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Estrus Synchronization: Cattle [PDF]
, 2004 Duane L. Davis, Jeffrey S. Stevenson
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THE DISTRIBUTION OF THE ESTRUS-PRODUCING AND ESTRUS-INHIBITING HORMONES IN THE OVARY OF THE COW
American Journal of Physiology-Legacy Content, 1928W. B. Payne +2 more
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