Reproductive performance of Ile de France ewes under dietary supplementation before and during the breeding season

Authors

  • Luis Gabriel Alves Cirne Universidade Federal de Roraima
  • Américo Garcia da Silva Sobrinho Universidade Estadual Paulista
  • Maria Emilia Franco Oliveira Universidade Estadual Paulista
  • José Carlos Barbosa Universidade Estadual Paulista
  • Gabriel Jorge Carneiro de Oliveira Universidade Federal do Recôncavo da Bahia
  • Adriana Regina Bagaldo Universidade Federal do Recôncavo da Bahia
  • Gleidson Giordano Pinto de Carvalho Universidade Federal da Bahia
  • Greicy Mitzi Bezerra Moreno Universidade Federal de Alagoas

DOI:

https://doi.org/10.5433/1679-0359.2016v37n1p269

Keywords:

Flushing, Management, Reproduction, Shearing, Sheep.

Abstract

The aim of this study was to evaluate the reproductive performance of Ile de France ewes undergoing dietary supplementation before and during the breeding season, with and without association with management conditions (pre-mating shearing). Thirty-six ewes with an average body weight of 66 kg were used in the experiment. Treatments involved ewes receiving or not receiving concentrate supplementation (flushing), with groups subdivided according to the management condition to which animals were subjected: shearing or lack of it. Thus, ewes were divided into four treatments: flushed and shorn; flushed and unshorn; unflushed and shorn; and unflushed and unshorn. Flushing increased weight gain and body condition score, and when associated with shearing, it promoted anticipation of estrus. Fertility rate (86.05%), calving rate (77.77%), birth rate (113.83%), and type of birth (single: 82.29% and twin: 17.71%) were not influenced. Birth weight (3.96 kg) and prolificacy (1.25%) also were not affected. Despite the lack of changes in reproductive traits, flushing adopted during the breeding season associated with shearing anticipated estrus in ewes.

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Author Biographies

Luis Gabriel Alves Cirne, Universidade Federal de Roraima

Prof. e Pesquisador, Universidade Federal de Roraima, UFRR, Boa Vista, RR, Brasil.

Américo Garcia da Silva Sobrinho, Universidade Estadual Paulista

Prof. e Pesquisador, Universidade Estadual Paulista, UNESP, Jaboticabal, SP, Brasil.

Maria Emilia Franco Oliveira, Universidade Estadual Paulista

Profa. e Pesquisadora, Universidade Estadual Paulista, UNESP, Jaboticabal, SP, Brasil.

José Carlos Barbosa, Universidade Estadual Paulista

Prof. e Pesquisador, Universidade Estadual Paulista, UNESP, Jaboticabal, SP, Brasil.

Gabriel Jorge Carneiro de Oliveira, Universidade Federal do Recôncavo da Bahia

Prof. e Pesquisador, Universidade Federal do Recôncavo da Bahia, UFRB, Cruz das Almas, BA, Brasil.

Adriana Regina Bagaldo, Universidade Federal do Recôncavo da Bahia

Profa e Pesquisadora, Universidade Federal do Recôncavo da Bahia, UFRB, Cruz das Almas, BA, Brasil.

Gleidson Giordano Pinto de Carvalho, Universidade Federal da Bahia

Prof. e Pesquisador, Universidade Federal da Bahia, UFBA, Salvador, BA, Brasil.

Greicy Mitzi Bezerra Moreno, Universidade Federal de Alagoas

Prof. e Pesquisador, Universidade Federal de Alagoas, UFAL, Arapiraca, AL, Brasil.

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Published

2016-02-29

How to Cite

Cirne, L. G. A., Silva Sobrinho, A. G. da, Oliveira, M. E. F., Barbosa, J. C., Oliveira, G. J. C. de, Bagaldo, A. R., Carvalho, G. G. P. de, & Moreno, G. M. B. (2016). Reproductive performance of Ile de France ewes under dietary supplementation before and during the breeding season. Semina: Ciências Agrárias, 37(1), 269–278. https://doi.org/10.5433/1679-0359.2016v37n1p269

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