INSEMINACION ARTIFICIAL EN BOVINOS PDF

Vista lateral, sistema reproductor dela hembra. La vulva es la apertura externa del aparato reproductor. La base ciega de este cono es llamada fornix. Las contracciones uterinas ayudan en el transporte de los espermatozoides.

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Por otra parte, el resultado al aplicar este protocolo en vaquillas ha sido muy inconsistente. Estos datos nos sugieren que estos tratamientos pudieran funcionar mejor en vaquillas que en vacas, en las razas para carne. Se ha podido observar que cuando las vacas se encuentran con menos de 2. Recientemente se ha propuesto Cutaia y col.

En un trabajo Balla y col. Existen varios factores que pueden afectar negativamente los resultados de los programas de IATF. Referencias Balla E. Balla E. Effect of the duration of treatment with progesterone vaginal devices on pregnancy rates in cross-breed zebu cattle artificially inseminated at fixed time. Reproduction, Fertility and Development. Baruselli PS. Exogenous control of follicular wave emergence in cattle. Theriogenology ; 43; Pilar, Buenos Aires, Argentina; Primera Parte.

Callejas S. Parte II. Revista Taurus Chesta P. Colazo MG. Pregnancy rates to time-AI in dairy cows treated with gonadotropin releasing hormone or porcine luteinizing hormone. Theriogenology Doi: Cutaia L. El-Zarkouny SZ. Presynchronization of estrous cycles before Ovsynch and progesterone in dairy cows: Ovulation, pregnancy rates and embryo survival.

J Dairy Sci. Ovulation and pregnancy rates in pospartum Bos Indicus cows treated with progesterone vaginal devices and estradiol benzoate, with or without eCG and temporary weaning. Martinez MF. Anim Reprod Sci. Moreira F. Effects of presynchronization and bovine somatotropin on pregnancy rates to a timed artificial insemination protocol in lactating dairy cows. Moreno D. Follicle wave emergence in beef cows treated with progesterone releasing devices, estradiol benzoate and progesterone.

Theriogenology ; 55; Murphy, B. Equine Chrorionic Gonadotropin. Endocrine Reviews; Pursley JR. Theriogenology ; Pregnancy rates per artificial insemination for cows and heifers inseminated at a synchronized estrus. NC Regional Research Project. Improved fertility in noncycling lactating dairy cows trated with exogenous progesterone during Ovsynch. Rabaglino MB.

Estrategias de manejo para optimizar la eficiencia reproductiva en vaquillonas lecheras de reemplazo. Control of the reproductive cycle in dairy cattle. Proceedings of the Annual Meeting of the Society of the Theriogenology.

Thatcher WW. Strategies to improve reproductive management of dairy cows. Advances in Dairy Technology ; Yavas Y. Postpartum acyclicity in suckled beef cows: a review.

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