Genetic market in cattle (Bull, AI, FTAI, MOET and IVP): financial payback based on reproductive efficiency in beef and dairy herds in Brazil.

Pietro Sampaio Baruselli,Jose Nelio De Sousa Sales,Marcio Oliveira Marques,Alexandre Henryli De Souza,Manoel Francisco De Sá

doi:10.21451/1984-3143-ar2018-0091

Abstract

A number of reproductive biotechnologies are currently available to multiply offspring from high genetic merit animals to enhance reproductive efficiency and profitability both in dairy and beef herds. Some of these technologies such as fixed time artificial insemination (FTAI), when correctly implemented, generally allow greater reproductive performance than natural breeding. Besides the use of frozen-thawed semen during artificial insemination, cattle recipients can also be synchronized to receive embryos (produced in vivo or in vitro) at set dates with fertility results that usually outperforms natural breeding as well as artificial insemination (AI), particularly during warm seasons and in repeat breeders cows. Altogether, the use of hormonal programs to synchronize ovulation time simplify field routine, can easily fix physiological limitations related to postpartum anestrus (beef cows), poor estrus detection efficiency due to less evident estrus signs (dairy cows), making AI and ET viable to commercial herds both in terms of results and economical returns.

Highlights

Modern beef and dairy production systems are dependent upon strategies to hasten and maximize the use of reproductive biotechnologies in order to match the increasing food demand worldwide
The fixed-time embryo transfer (FTET) improves the proportion of recipients selected for embryo transfer in beef and dairy herds, and produces greater pregnancy rates following transfer comparing to natural estrus detection (Baruselli et al, 2010; Rodrigues et al, 2010)
In this review we present a brief report of the current state of the genetic market in Brazil, as well as discuss some aspects of the economic impact that the use of reproductive technologies can have in commercial beef and dairy herds

Summary

Introduction

Modern beef and dairy production systems are dependent upon strategies to hasten and maximize the use of reproductive biotechnologies in order to match the increasing food demand worldwide. The fixed-time embryo transfer (FTET) improves the proportion of recipients selected for embryo transfer in beef and dairy herds, and produces greater pregnancy rates following transfer comparing to natural estrus detection (Baruselli et al, 2010; Rodrigues et al, 2010).

Results

Conclusion