Title
Embryo transfer of super ovulated and single ovulated llamas at two periods of the year and under field conditions
Other title
[Transferencia embrionaria de llamas superovuladas y de ovulación simple en dos épocas del ão y bajo condiciones de campo]
Date Issued
23 February 2021
Access level
open access
Resource Type
journal article
Author(s)
PACHECO CURIE, JOEL IVAN
ANGULO TISOC, JOSE MANUEL
VELEZ MARROQUIN, VICTOR MANUEL
GARCIA VERA, WILBER CALIXTO ROLANDO
Publisher(s)
Universidad Nacional Mayor de San Marcos
Abstract
Two embryo production protocols were evaluated: superovulation and single ovulation, determining the collection rate and quality of the embryos, as well as fertility and natality during the reproductive and non-reproductive season, at 4200 meters above sea level and under field conditions. The collection rate of embryos in single ovulation was 53% (44/83) embryos versus 242.3% (63/26) in superovulation. The quality of the embryos collected by single ovulation was: grade I (90.3 and 83.6%) and grade II (9.4 and 16.7%) and none of grade III; while in superovulation it was: grade I (76.6 and 87.5%), grade II (14.9 and 12.5%) and grade III (8.5 and 0%) for the reproductive and nonreproductive seasons, respectively. Fertility was similar between single ovulation (56.4%) and superovulation (56.0%). The birth rate was 41.1 and 30.0% for single ovulation and superovulation, respectively. It is concluded that both techniques represent a feasible alternative for their application in the high Andean llama rearing systems.
Volume
32
Issue
1
Language
Spanish
OCDE Knowledge area
Biología reproductiva
Ciencia veterinaria
Subjects
Scopus EID
2-s2.0-85102685854
Source
Revista de Investigaciones Veterinarias del Peru
ISSN of the container
16823419
Sources of information:
Directorio de Producción Científica
Scopus