Donor evaluation and scoring for non-surgical embryo transfer in Santa Inês sheep.

Donor evaluation and scoring for non-surgical embryo transfer in Santa Inês sheep.

Abstract: This study checked the effectiveness of ranking the difficulty to clip/traction and traverse the cervix with the Hegar dilator as a predictor method for selecting suitable animals to undergo NSER. A total of 46 pluriparous Santa Inês received intravaginal sponges containing 60 mg medroxyprogesterone (Progespon®, Syntex, Buenos Aires, Argentina) during six days plus 200 IU eCG (Novormon 5000®, Syntex, Buenos Aires, Argentina) i.m. and 37.5 ?g d-cloprostenol (Prolise®, ARSA S.R.L., Buenos Aires, Argentina) latero-vulvar 24 h before sponge removal. This grading system may indicate the probability of individual animals to successfully proceed with NSER. It is suggested that a selective system for donors should include an attempt to clip/traction/traverse the cervix, ranking the difficulty of the process, before starting a MOET/NSER protocol. Animals that receive scores 4 and 5 could be excluded from the protocol in order to prevent the use of unable or laborious animals, avoiding wasting resources. [Avaliação e ranqueamento de doadoras para coleta de embriões não cirúrgica em ovelhas Santa Inês].

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Bibliographic Details
Main Authors: PRELLWITZ, L., ZAMBRINI, F. N., GUIMARÃES, J. D., SOUSA, M. A. P. de, ANDRADE, L. F. A. de, SOUZA-FABJAN, J. M. G., OLIVEIRA, M. E. F. de, FONSECA, J. F. da
Other Authors: LUCIA PRELLWITZ, Graduação - Universidade Federal Fluminense (UFF) - Niterói, RJ, Brasil; FABIANA NUNES ZAMBRINI, Pós-graduação - Universidade Federal de Viçosa (UFV) - Viçosa, MG, Brasil; JOSÉ DOMINGOS GUIMARÃES, Universidade Federal de Viçosa (UFV) - Viçosa, MG, Brasil; MARCO ANTÔNIO PAULA DE SOUSA, Pós-graduação - Universidade Federal do Pará (UFPA) - Castanhal, PA, Brasil; LETICIA PEREIRA ALCARAZ DE ANDRADE, Graduação - Universidade Federal do Rio de Janeiro (UFRJ) - Rio de Janeiro, RJ, Brasil; JOANNA MARIA GONÇALVES SOUZA-FABJAN, Universidade Federal Fluminense (UFF)- Niterói, RJ, Brasil; MARIA EMÍLIA FRANCO DE OLIVEIRA, Universidade Estadual de São Paulo (UNESP) - Jaboticabal, SP, Brasil; JEFERSON FERREIRA DA FONSECA, CNPC.
Format: Anais e Proceedings de eventos biblioteca
Language:English
eng
Published: 2019-09-16
Subjects:Recuperação de embriões, Dilatador de Hegar, Embryo recovery, Hegar dilator, Ovelha, Ovino, Reprodução Animal, Sheep, Animal reproduction,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112201
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Summary:Abstract: This study checked the effectiveness of ranking the difficulty to clip/traction and traverse the cervix with the Hegar dilator as a predictor method for selecting suitable animals to undergo NSER. A total of 46 pluriparous Santa Inês received intravaginal sponges containing 60 mg medroxyprogesterone (Progespon®, Syntex, Buenos Aires, Argentina) during six days plus 200 IU eCG (Novormon 5000®, Syntex, Buenos Aires, Argentina) i.m. and 37.5 ?g d-cloprostenol (Prolise®, ARSA S.R.L., Buenos Aires, Argentina) latero-vulvar 24 h before sponge removal. This grading system may indicate the probability of individual animals to successfully proceed with NSER. It is suggested that a selective system for donors should include an attempt to clip/traction/traverse the cervix, ranking the difficulty of the process, before starting a MOET/NSER protocol. Animals that receive scores 4 and 5 could be excluded from the protocol in order to prevent the use of unable or laborious animals, avoiding wasting resources. [Avaliação e ranqueamento de doadoras para coleta de embriões não cirúrgica em ovelhas Santa Inês].

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