Title
Application of the non-surgical bovine embryo transfer technique in a dairy farm in the Lima milkshed
Other title
Aplicación de la técnica no quirúrgica de transferencia de embriones bovinos en un establo de la cuenca lechera de Lima
Date Issued
01 January 2014
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Universidad Nacional Mayor de San Marcos
Abstract
The study aimed to evaluate the superovulatory response and conception rate by applying the technique of non-surgical embryo transfer in dairy cows of a commercial farm in the Lima milkshed. Eight donor cows were used and distributed in two working years. Donors were synchronized with estrogens, progestagens and luteolitic agents, superovulated with 400 mg of FSH, and inseminated with two doses of frozen semen. The recipient animals (n=28) were also distributed in two years. The Pre-synch protocol was used for estrus synchronization in the first year and the CIDR-synch protocol in the second year. The expected day of heat presentation coincided for both donors and recipients. The recovery of embryos was done seven days post service where embryos were classified and immediately transferred. Pregnancy diagnosis by transrectal ultrasonography was done at day 28 post transfer. A total of 23 embryos were obtained. The embryo recovery rate was 36.5% with high variation between years. Seventeen embryos were transferred and the conception rate was 40% with high variation between years (22.2 and 66.7%). The varied individual response of the donors affected the embryo recovery rate and the synchronization protocol affected conception rate.
Start page
95
End page
102
Volume
25
Issue
1
Language
Spanish
OCDE Knowledge area
Ciencia veterinaria
Subjects
Scopus EID
2-s2.0-84896908870
Source
Revista de Investigaciones Veterinarias del Peru
ISSN of the container
16823419
Sources of information:
Directorio de Producción Científica
Scopus