Techniques of superovulation in ruminants

Authors

  • Vicente de Paula Fernandes Neto

DOI:

https://doi.org/10.22256/pubvet.v16n12.1332

Keywords:

Ruminants. Superovulation. Drugs

Abstract

The success of transfer programs embryos depends in large part to superovulate response, its limitation. In this regard, recent protocols, which control the follicular and luteal function, allow you to start the superovulatory treatment in a predetermined time. The superovulated objective supply the deficiency of the concentration of FSH before the dominant follicle promote the reduction of the concentration of this endogenous gonadotropin. There are numerous protocols for estrus synchronization and superovulation in ruminants, with the use of various drugs such as FSH, eCG, progestin, estrogen, PGF2a, GnRH agonists, etc.. They are also the various factors affecting the success of superovulation in ruminants among which is the early luteal regression, LH / FSH ratio, type of drug used, immunity, nutrition and body condition. This review aims to expose these protocols and the use of superovulatory drugs, as well as the effects of interfering factors.

Published

2016-09-21

Issue

Section

Reprodução animal

How to Cite