Results 101 to 110 of about 172,833 (198)

Comparison between Day 0 and traditional protocols for estrus synchronization and multiple ovulation in crossbred hair sheep

Journal of Applied Animal Research, 2019
This study was carried out to compare Day 0 and traditional protocols for in vivo embryo production. Twenty-two crossbred ewes were used as embryo donors and assigned to two groups.
Livia Correia Magalhães, Edilson Soares Lopes Júnior, Aionne de Souza Leite Guimarães, Mayara de Souza Miranda, Thais Thatiane dos Santos Souza, Alane Pains Oliveira do Monte, Ana Arlete de Amorim Silva, Ludmila Souza Sampaio, Thiago Vinicius Costa Nascimento, Pedro Humberto Felix de Sousa, Danie l Maia Nogueira, Mabel Freitas Cordeiro   +11 more
doaj   +1 more source

Synchronization of Estrus in Dairy Heifers: A Field Demonstration

Journal of Dairy Science, 1986
Use of prostaglandin F2 alpha to synchronize estrus was demonstrated over 3 yr with 2966 dairy heifers in 45 herds. Reproductive status of all heifers was determined before any injections occurred. Anovulatory heifers (8.3%) were not injected or inseminated. Ovulatory heifers received one intramuscular injection and most heifers received two injections
R L, Fogwell, W A, Reid, C K, Thompson, M J, Thome, D A, Morrow   +4 more
openaire   +2 more sources

Comparative efficacy of estrus synchronization between modified herbs and commercial herbs in goats. [PDF]

, 2020
Estrus synchronization has ascend the popularity of animal husbandry field and gained significant recognition in animal breeding procedure. The advantages of estrus synchronization were increased goat heat and uniformed insemination time. Conversely, the
Khairatun Nisaa’ Abu Bakar,
core  

Effects of ram presence during synchronization period and previous experience on certain estrus parameters and sexual behaviors in Kivircik ewes

, 2013
This study aimed to investigate the effects of ram presence during estrus synchronization protocol and previous sexual experience on estrus onset, estrus duration, and sexual behaviors in Kivircik ewes.
Kocak, Omur, Ergul Ekiz, Elif, Ekiz, Bülent   +2 more
core   +1 more source

Estrus Synchronization and Artificial Insemination of Swine [PDF]

, 1968
For years scientists have been trying to find drugs or hormones that will control the reproductive cycle and bring gilts into estrus together to be bred at the same time.
Shelby, D.R.
core   +1 more source

Embryo Transfer in Angus and Brahman Recipient Cows: Effect of Two Methods of Estrus Synchronization on Induced Estrus and Pregnancy

Revista Científica, 2010
Over a 3-year period, 88 Angus and 87 Brahman cows were used as recipients to determine the effects of breedtype and method of estrous synchronization on induced estrus and subsequent pregnancy following embryo transfer.
Chad Chase, Carlos Vargas, Andrew Hammond, Timothy Olson, James Griffin, Clifton Murphy, Assefaw Tewolde, Michael Fields   +7 more
doaj  

Current concepts for estrus synchronization in bovine [PDF]

, 2017
In animal breeding, synchronization has major role to play especially to bring the animals to estrus at a desired time by using exogenous hormones.
KOUAMO, Justin, J. Kouamo
core  

Validation of a luciferase bioassay to detect the progestative activity in gilts whose estrus was induced by an uterotonic herb ; Ligusticum chuanxiong

, 2014
[[abstract]]Ligusticum chuanxiong (LC) is an uterotonic herb. Ethanol extract of LC has potent progestative activity. The progestative activity in rat serum was well documented after oral and subcutaneous administration of LC. The objective of this study
Ahmed, H.M.;Ahmed, H.M.;葉貞吟;Yeh, Jan-Ying;Lin, W.J.;Lin, W.J.;Forsberg, N.;Forsberg, N.E.;Cheng, W.T.;Cheng, W.T.K.;Ou, B.R.;Ou, B.R.*, Ahmed, H.M.;Ahmed, H.M.;葉貞吟;Yeh, Jan-Ying;Lin, W.J.;Lin, W.J.;Forsberg, N.;Forsberg, N.E.;Cheng, W.T.;Cheng, W.T.K.;Ou, B.R.;Ou, B.R.   +1 more
core   +1 more source

Estrus Synchronization in Pigs

Estrus synchronization is a technique that involves managing the reproductive cycles of sows to bring them into estrus (heat) at the same time and making it easier to the fixed time insemination and increase the efficiency of breeding programmes. This practice is especially beneficial in the tropical regions where the environmental stress factors such ...
openaire   +2 more sources

Comparison of Two Estrus Synchronization Programs in a Large, Confinement-Housed Dairy Herd

, 1998
Estrus synchronization programs have been used to manage reproduction in dairy cattle for many years. These programs involve various protocols for administration of a single hormone or combinations of hormones, but results have varied among programs and ...
Gaska, Jerome, Britt, Jenks Swann
core   +1 more source