Results 101 to 110 of about 712 (184)

The applications of timed artificial insemination and timed embryo transfer in reproductive management of dairy cattle Aplicação da inseminação artificial e transferência de embrião em tempo fixo no manejo reprodutivo de vacas leiteiras

Revista Brasileira de Zootecnia, 2010
Fertility of dairy cattle is generally decreasing. Overall estrus detection efficiency in lactating dairy cattle is low, as expression of estrus is often compromised.
Divakar Justus Ambrose, Marcos Germán Colazo, John Patrick Kastelic   +2 more
doaj   +1 more source

I. The Hormonal Response of Presynchronization with Gnrh and/or Calf Removal Leading up to Breeding. Ii. Evaluation of Stress on Calves During Separation.

, 2015
Estrus synchronization is used in beef cattle herds to control the time of estrus or ovulation, minimize time and labor needed for artificial insemination (AI), and/or improve conception rates to fixed-timed AI.
Sutton, Courtney
core  

The Influence of the Interval between Administration of PGF2α, in the Pre-Synchronization Treatments (2xPGF2α), in the Ovsynch Synchronization Program of the Oestrus and the Ovulations in Dairy Cows

Scientific Papers Animal Science and Biotechnologies, 2023
The results of synchronization of estrus and ovulation by Ovsynch program can be improved if stages of estrous cycles in cows are synchronized, through two administrations of PGF2α, before the administration the first dose of GnRH.
Nicolae Păcala, Casiana Şipeţan Ciolac, Ioan Bencsik, Dorel Dronca, Gabi Dumitrescu, Eliza Simiz, Marioara Nicula, Valer Carabă, Adela Marcu, Liliana Petculescu-Ciochina, Marinel Șipețan, Cosmin Ganţă   +11 more
doaj  

Effect of One-Day Delaying CIDR Administration in 5-Day Cosynch Protocol in Dairy Heifers. [PDF]

Animals (Basel), 2021
Pancarci SM, Güngör Ö, Harput O, Calisici O.   +3 more
europepmc   +1 more source

The effect of presynchronization on reproductive parameters in ewes at the breeding season

, 2011
15th Annual Conference of the European-Society-for-Domestic-Animal-Reproduction (ESDAR) -- SEP 15-17, 2011 -- Antalya, TURKEY[Abstract not Available]European Soc Domest Anim ...
Kırbaş, Mesut, ATAMAN, MEHMET BOZKURT, ÇOYAN, KENAN, Demirci, Uğur, KÖSE, MEHMET, Ümütlü, Seyit, BÜLBÜL, BÜLENT, Bekçi, Emine Aysun   +7 more
core   +1 more source

Induction of the best moment to the Ovsynch protocol beginning through the presynchronization by prostaglandin in buffalo cows (“Bubalus bubalis”) Indução do melhor momento para o início do protocolo Ovsynch por meio da pré-sincronização do ciclo estral com prostaglandina em búfalas ("Bubalus bubalis")

Revista Brasileira de Saúde e Produção Animal, 2007
The objective of this experiment was to evaluate the efficiency of the Ovsynch protocol in water buffalo cows, by the utilization of nafarelin like GnRH analogous and by the induction of the best moment to the protocol beginning through the ...
Ana Paula Mota Portela, Eunice Oba, Ricardo Diniz Guerra e Silva, Ana Karine Almeida, Anderson Trindade Fonseca   +4 more
doaj  

Effect of a progesterone-releasing intravaginal device (PRID) for 8 days during a modified Ovsynch protocol on pregnancy outcomes in lactating Holstein cows. [PDF]

JDS Commun, 2023
Hölper M, Bretzinger L, Randi F, Heuwieser W, Borchardt S.   +4 more
europepmc   +1 more source

Influence of Ovarian Status and Steroid Hormone Concentration on Day of Timed Artificial Insemination (TAI) on the Reproductive Performance of Dairy Cows Inseminated with Sexed Semen. [PDF]

Animals (Basel), 2023
Yotov S, Fasulkov I, Atanasov A, Kistanova E, Sinapov B, Ivanova B, Yarkov D, Zaimova D.   +7 more
europepmc   +1 more source

Evaluation of luteolytic activity and reproductive outcomes in ewes following single and split dose cloprostenol during the breeding season. [PDF]

Trop Anim Health Prod
Akbulut NK, Kal Y, Kırbaş M, Aladağ F, Alkan H.   +4 more
europepmc   +1 more source

Prostaglandin-induced luteolysis and estrous expression in dairy heifers: applications of ovulation prediction based on automated activity monitoring system. [PDF]

J Vet Med Sci
Chuang AC, Ho TC, Chan JP.
europepmc   +1 more source