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Dominant follicle removal by ultrasound guided transvaginal aspiration and superovulatory response in Nellore cows Arq. Bras. Med. Vet. Zootec.
Gradela,A.; Esper,C.R.; Matos,S.P.M.; Lanza,J.A.; Deragon,L.A.G.; Malheiros,R.M..
The present study analyzed the physiological significance of the dominant follicle (DF) and its removal on the superovulatory response of 42 Nellore cows and tested the hypothesis that the number of subordinate small follicles (3-8mm) could be used as a single criterion for the evaluation of the presence or absence of a DF in the ovaries. Ultrasonographic examinations were performed two days before the beginning of superovulatory treatment (D0) and the cows divided into three groups: group without DF (NDF), group with a DF (DF) and group with an aspirated DF (ADF). The superovulatory response of the donors did not differ between groups, but the rate of embryonic viability was higher in NDF (69.40%) and ADF (68.99%) groups compared to DF (48.54%). The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovine; Nellore; Dominant follicle aspiration; Superovulatory response.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000100013
Registros recuperados: 1
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