EFFECT OF ESTRUS SYNCHRONIZATION WITH DOUBLE INJECTION OF D-CLOPROSTENOL ASSOCIATED OR NOT WITH eCG ON THE REPRODUCTIVE PERFORMANCE OF ½ BOER/SRD GOATS RAIZED IN THE SEMI-ARID ZONE OF NORTHEASTERN BRAZIL

Authors

  • Daniel Maia Nogueira Embrapa Semi-Árido
  • Edilson Soares Lopes Júnior UNIVASF
  • Pedro Humberto Felix de Sousa UNEB – Campus III
  • Geraldo Miranda de Carvalho Júnior Centro de Reprodução de Andorinha

DOI:

https://doi.org/10.5216/cab.v10i2.3399

Keywords:

caprino, fêmea, gonadotrofina, tratamento hormonal

Abstract

he aim of this study was to evaluate the effect of double injection of d-cloprostenol associated or not with equine chorionic gonadotrophin (eCG) over the reproduction performance of ½ Boer/non-genotype goats raised in the semi-arid region of North-eastern Brazil. Forty goats were distributed into two estrus synchronization protocols, as following: T1 (n = 20) two injections of 75 µg d-cloprostenol at seven days interval; T2 (n = 20), similar to the previous protocol, differing only by the addition of 300 IU eCG at the last d-cloprostenol injection. Percentage of animals in estrus (65% vs. 85%) and interval from the end of treatment to estrus onset (22.8 ± 13.4 h vs. 17.2 ± 7.6 h) did not differ (P>0.05) between T1 and T2, respectively. However, T2 showed a larger estrus length (P<0.05) than T1; 47.3 ± 12.3 h and 32.9 ± 11.9 h, respectively. It was observed a fertility and prolificity rate, respectively, of 61.5% and 1.4 for T1 and 41.2% and 1.8 for the T2, not having significant difference between treatments. Double injections of d-cloprostenol at seven days interval showed technically viable. In the present study, the addition of 300 IU eCG did not improve fertility nor prolificity rates.

KEY WORDS: Estrus synchronization, goats, gonadotrophin, productive performance, prostaglandin.

Downloads

Download data is not yet available.

Author Biographies

Daniel Maia Nogueira, Embrapa Semi-Árido

Médico Veterinário formado na UECE. Mestrado em Produção e Reprodução de Pequenos Ruminantes. Pesquisador da Embrapa Semi-Árido. Petrolina-PE.

 

 

Edilson Soares Lopes Júnior, UNIVASF

Médico Veterinário. Doutor. Professor Adjunto I - UNIVASF – Petrolina – PE.

Pedro Humberto Felix de Sousa, UNEB – Campus III

 Médico Veterinário. Doutor. Professor Adjunto – Faculdade de Agronomia – UNEB – Campus III  –  Juazeiro – BA.

Geraldo Miranda de Carvalho Júnior, Centro de Reprodução de Andorinha

Médico Veterinário do Centro de Reprodução de Andorinha – Andorinha – BA.

Downloads

Published

2009-07-03

How to Cite

NOGUEIRA, D. M.; LOPES JÚNIOR, E. S.; SOUSA, P. H. F. de; CARVALHO JÚNIOR, G. M. de. EFFECT OF ESTRUS SYNCHRONIZATION WITH DOUBLE INJECTION OF D-CLOPROSTENOL ASSOCIATED OR NOT WITH eCG ON THE REPRODUCTIVE PERFORMANCE OF ½ BOER/SRD GOATS RAIZED IN THE SEMI-ARID ZONE OF NORTHEASTERN BRAZIL. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 10, n. 2, p. 618–626, 2009. DOI: 10.5216/cab.v10i2.3399. Disponível em: https://revistas.ufg.br/vet/article/view/3399. Acesso em: 19 may. 2024.

Issue

Vol. 10 No. 2 (2009)

Section

Veterinary Medicine

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).