Results 91 to 100 of about 3,996 (257)

ANALYZING REPRODUCTIVE MANAGEMENT STRATEGIES ON DAIRY FARMS [PDF]

open access: yes
Milk sales are the largest source of revenue on dairy farms. Reproduction is necessary to generate a new lactation. However, a pregnancy also dictates when the previous lactation must end so that the cow can retain sufficient condition into her new ...
Wolf, Christopher A.
core   +1 more source

Comparación entre dos protocolos de sincronización en un programa de transferencia de embriones en novillas, en Roldanillo Valle del Cauca [PDF]

open access: yes, 2019
El tema de sincronización de celo en bovinos es cada vez más importante en el área de reproducción, por esta razón se han creado una variedad de protocolos con el fin encontrar una mejor eficiencia a la hora de realizar inseminación artificial o ...
Santa Galván, Luisa Fernanda   +1 more
core  

Stimulating Reproductive Functions at Acyclic Cows by Ovsynch and Select Synch Protocols

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The purpose of our work was to compare the efficiency of two programs for the induction and synchronization of estrous and ovulation in acyclic cows (Ovsynch and Select Synch).
Ion Carabă   +4 more
doaj  

Associação de medroxiprogesterona ao protocolo Ovsynch para inseminação artificial em tempo fixo de búfalas cíclicas (Bubalus bubalis) criadas na Amazônia Oriental. [PDF]

open access: yes, 2013
O presente estudo visou avaliar os efeitos da associação da medroxiprogesterona (análogo sintético da progesterona) ao protocolo Ovsynch sobre o crescimento folicular, a ovulação e a taxa de concepção de búfalas criadas na Amazônia Oriental (Tracuateua ...
ANDRADE, A. F. C.   +7 more
core  

Uso del protocolo Ovsynch en el control del anestro postparto en vacas mestizas de doble propósito

open access: yesRevista Científica, 2010
Para evaluar el efecto del protocolo Ovsynch sobre parámetros de fertilidad en vacas mestizas doble propósito en anestro y definir el momento óptimo para la IA a tiempo fijo (IATF), 37 de 48 vacas acíclicas se asignaron a los siguientes grupos: T1 ...
Juan Carlos Gutiérrez Añez   +5 more
doaj  

Impact of three different ovulation synchronization protocols on first-service conception rates in postpartum cows [PDF]

open access: yesIraqi Journal of Veterinary Sciences
The study was conducted on 60 Holstein dairy cows during 50 and 60 days postpartum in different rural areas in Al-Anbar Province, Iraq. This study evaluated the effects of two ovulation synchronization protocols on postpartum fertility performance ...
Ahmed I. Alsuwaidawi, Hani M. Alrawi
doaj   +1 more source

Efecto del reemplazo folicular (GnRH) y de somatotropina bovina (bST) sobre la fertilidad de vacas lecheras expuestas a estrés calórico

open access: yesRevista Mexicana de Ciencias Pecuarias, 2020
Tres protocolos reproductivos fueron evaluados: 1) PG: inyección de PGF2α en el día 50 posparto e inseminación (IA) en base a detección del estro. 2) OVS (Ovsynch: día 0, GnRH; día 7, PGF2α; día 9, GnRH; día 10, IA); y 3) ROV (GnRH + Ovsynch: día- 7 ...
Renato Raúl Lozano-Domínguez   +7 more
doaj   +1 more source

Pregnancy outcome of lactating dairy cows assigned for Presynch-Ovsynch synchronization program and inseminated either at detected standing heat or at scheduled fixed time

open access: yesAsian Pacific Journal of Reproduction, 2019
Objective: To determine if insemination at standing heat results in a similar or higher pregnancy rate compared with fixed time artificial insemination, and to study some factors affecting the pregnancy rate.
Abdel-Tawab Abdel-Razek Yassyn Khalil   +1 more
doaj   +1 more source

Comparison of PUFA profiles in the blood and in follicular fluid and its association with follicular dynamics after PGF2α induced luteolysis in dairy cows [PDF]

open access: yes, 2016
The objectives of the present study were to examine the fatty acid (FA) profiles in serum and in the follicular fluid (FF) and the association between polyunsaturated fatty acid level (PUFA) and follicular growth dynamics following induced luteolysis in ...
Adamov, Nikola   +8 more
core   +3 more sources

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