Embryo transfer in no cycling Crioula and Quarter horse breeds treated with estradiol cipionate and long-acting progesterone

Autor: Fernanda Kaercher, Marlon Siqueira, Alessandro Mercadante, Tatiana Figueiredo, Romildo Romualdo Weiss, Felipe Siqueira, Luiz Ernandes Kozicki
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Brazilian Archives of Biology and Technology, Vol 54, Iss 6, Pp 1147-1150 (2011)
Druh dokumentu: article
ISSN: 1516-8913
1678-4324
DOI: 10.1590/S1516-89132011000600009
Popis: The aim of this work was to prepare the mares for embryo transfer. In group 1 (G1,treated, n=15), recipient mares in anoestrus or in a transition period were treated with 5.0, 3.0 and 2.0 mg of estradiol cipionate at the days 0, 1 and 2 respectively, beginning at the day of ovulation (DO). From the fourth day on, the mares this group received long-acting progesterone weekly, up to the 120 day of gestation. At D8, the embryo was collected from the donor and transferred to the recipient. At D12, the ultrasonographyc diagnosis of pregnancy was carried out. The control group (G2, not treated, n=20) was formed by cycling recipient mares, displaying ovulation at each 2 to 3 days after the donors mare ovulation. The pregnancy rate was higher (p
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