Results 221 to 230 of about 12,798 (245)
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Theriogenology, 1999
The effects on estrus and fertility of 3 estrus synchronization protocols were studied in Brahman beef heifers. In Treatment 1 (PGF protocol; n=234), heifers received 7.5 mg, i.m. prostianol on Day 0 and were inseminated after observed estrus until Day 5. Treatment 2 (10-d NOR protocol; n = 220) consisted of norgestomet (NOR; 3 mg, s.c.
Corbet, N. J. +8 more
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The effects on estrus and fertility of 3 estrus synchronization protocols were studied in Brahman beef heifers. In Treatment 1 (PGF protocol; n=234), heifers received 7.5 mg, i.m. prostianol on Day 0 and were inseminated after observed estrus until Day 5. Treatment 2 (10-d NOR protocol; n = 220) consisted of norgestomet (NOR; 3 mg, s.c.
Corbet, N. J. +8 more
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Synchronization of estrus in beef cattle
Theriogenology, 1978Abstract Five experiments were conducted with 647 virgin heifers and 821 lactating cows to determine the effectiveness of an estrous synchronization treatment involving an ear implant containing 6 mg of 17α-acetoxy-11β-methyl-19-nor-preg-4-ene-3,20-dione (norgestomet) and an injection of varying levels (5 to 7.5 mg) of estradiol valerate (EV) at the ...
J.C. Spitzer +3 more
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Estrus synchronization in sheep with synthetic progestagens
Tropical Animal Health and Production, 2009Sixteen female sheep of Degua breed were assigned to receive either the full dose of norgestomet ear implant and injectable solution containing norgestomet and estradiol valerate (n = 8) or half the dose (n = 8). The ear implants were removed in both groups on day 12.
Hayatu, Awel +4 more
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Theriogenology, 2016
The objectives of the present study were to assess the effect of permanent contact of teasers without copulation on the interval from controlled internal drug release (CIDR) removal to estrus onset, estrus duration, ovulation time, number of ovulations, and interval from CIDR removal to ovulation time on estrus-synchronized Boer goats.
Juan E, Romano +3 more
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The objectives of the present study were to assess the effect of permanent contact of teasers without copulation on the interval from controlled internal drug release (CIDR) removal to estrus onset, estrus duration, ovulation time, number of ovulations, and interval from CIDR removal to ovulation time on estrus-synchronized Boer goats.
Juan E, Romano +3 more
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Beef heifer estrus synchronization programs
The Bovine Practitioner, 1988Oestrus synchronization by administration of PG, norgestomet + oestradiol valerate or MGA + PG is discussed.
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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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Estrus Synchronization for Heifers
2014By using estrus synchronization and artificial insemination, you can increase the number of heifers calving early in the calving season, reduce dystocia, use superior sires, and increase calf weaning weights.
Hall, John B. +2 more
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Estrus induction and synchronization in canids and felids
Theriogenology, 2007Indications for estrus induction in the dog and cat include potential missed breeding opportunities or conception failure, the treatment of primary or secondary anestrus, out-of-season breeding (feline) and synchronization of ovulation for embryo transfer programs. Reported methods for estrus induction in bitches and queens include the use of synthetic
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