SUPEROVULATORY RESPONSE OF BOVINE DONORS TREATED WITH PMSG+NEUTRA-PMSG OR FSH-P

Authors

  • Ricardo Aké-López
  • Fernando Centurión-Castro
  • Militza Alfaro-Gamboa
  • Gabriela Mapes-Sánchez

Keywords:

PMSG NEUTRA-PMSG, FSH-P, superovulation, cows, heifers, tropics

Abstract

The present study, carried out in five ranches in the state of Yucatán, México, was performed to compare superovulatory response of cows and heifers treated with PMSG+NEUTRA-PMSG (Treatment 1; n=19) and two types of FSH-P (Treatment 2; n=19). Superovulation started on day 11 of the cycle (estrus = day 0), and the embryos were recovered nonsurgically on day 7 after insemination. Two donors were eliminated from each treatment on the recovery day. Statistical analysis was performed by the t test. There was no significant difference between the two types of FSHP. Means of corpus luteum were similar in either treatment (7.29 ± 3.3 PMSG+NEUTRA-PMSG and 7.58 ± 3.4 FSH; p>0.01). However, the donors that superovulated with FSH-P had higher means of embryos (7.35 ± 7.1 vs. 3.32 ± 3.0; p

Downloads

Published

30-06-1998

Issue

Vol. 32 No. 2 (1998): 1998-abr-jun

Section

Animal Science

License

Agrociencia is published every 45 days, in an English format, and it is edited by the Colegio de Postgraduados. Mexico-Texcoco highway Km. 36.5, Montecillo, Texcoco, Estado de México, CP 56264, Telephone (52) 5959284427. www.colpos.mx. Editor-in-Chief: Dr. Fernando Carlos Gómez Merino. Rights Reserved for Exclusive Use: 04-2021-031913431800-203, e-ISSN: 2521-9766, granted by the National Institute for Author Right.