Results 231 to 240 of about 390,832 (275)

Development and evaluation of an injectable slow-release progesterone formulation for estrus synchronization in ewes out of the breeding season.

Reproduction in domestic animals = Zuchthygiene, 2023
This study was aimed at developing a type of slow-release progesterone micro-particles useable in a single intramuscular injection for estrus synchronization in non-breeding season ewes. A total of 66 ewes were randomly assigned into four groups: CIDR (n=
Mohsen Vafaei Salarpoor, A. Kadivar, N. Davoodian, Pegah Khosravian, N. Esfandabadi, A. Mohebbi, H. Mehrban   +6 more
semanticscholar   +1 more source

Effect of environmental factors on estrus synchronization and artificial insemination success in farmers flock in sheep under semi-arid tropical region.

Reproduction in domestic animals = Zuchthygiene, 2020
Environmental cues in the different seasons might influence the estrus and lambing percentages. The present study was conducted to assess the effect of environmental factors on estrus synchronization (ES) and artificial insemination success in sheep ...
Kalyan De, Davendra Kumar, B. Krishnappa, S. Naqvi   +3 more
semanticscholar   +1 more source

Efficiency of Different Estrus Synchronization Protocols in Surti Goats

, 2020
A total of 54-adult non-pregnant Surti goats were selected and randomly divided into three equal groups (n=18 each). Two groups were put under estrus synchronization protocols, viz., Double PGF2α protocol (Inj.
C. P. Parmar, A. Dhami, J. Patel, V. Belsare   +3 more
semanticscholar   +1 more source

Synchronization of estrus in beef cattle

Theriogenology, 1978
Abstract 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, D.L. Jones, E.D. Miksch, J.N. Wiltbank   +3 more
openaire   +2 more sources

Induction and synchronization of estrus in dogs

Theriogenology, 2005
Indications 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 ...
openaire   +2 more sources

Synchronization of estrus and fertility in Zebu beef heifers treated with three estrus synchronization protocols

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., Miller, R. G., Bindon, B. M., Burrow, H. M., DOcchio, M. J., Entwistle, K. W., Fitzpatrick, L. A., Wilkins, J. F., Kinder, J. E.   +8 more
openaire   +3 more sources

Estrus synchronization in sheep with synthetic progestagens

Tropical Animal Health and Production, 2009
Sixteen 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, Lisanework, Eshetu, Gebrehiwot, Tadesse, Alemselam, Birhanu, S K, Khar   +4 more
openaire   +2 more sources

Estrus induction and synchronization in canids and felids

Theriogenology, 2007
Indications 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
openaire   +2 more sources

Continuous presence of male on estrus onset, estrus duration, and ovulation in estrus-synchronized Boer goats

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, Abdalhamid, Alkar, Victor O, Fuentes-Hernández, Marcel, Amstalden   +3 more
openaire   +2 more sources

Estrus Synchronization for Heifers

2014
By 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., Liles, Amanda Gail, Whittier, W. Dee   +2 more
openaire   +1 more source