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

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

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

Autores

SOUZA-FABJAN, J. M. G.

OLIVEIRA, M. E. F. de

FONSECA, J. F. da

Descripción

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].
Edição dos resumos do XXIII Congresso Brasileiro de Reprodução Animal, Gramado, RS, Brasil, 15 a 17 de maio 2019.