Open AccessUse of Bayesian Inference to CorrelateIn VitroEmbryo Production andIn VivoFertility in Zebu Bulls
Author(s) -
Mateus José Sudano,
André Maciel Crespilho,
Cláudia Barbosa Fernandes,
Alício Martins,
Frederico Ozanam Papa,
Josemar Rodrigues,
R. Machado,
Fernanda da Cruz LandimAlvarenga
Publication year - 2011
Publication title -
veterinary medicine international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 30
eISSN - 2090-8113
pISSN - 2042-0048
DOI - 10.4061/2011/436381
Subject(s) - zebu , blastocyst , andrology , artificial insemination , insemination , fertility , biology , statistics , in vivo , embryo , mathematics , sperm , embryogenesis , zoology , microbiology and biotechnology , genetics , medicine , pregnancy , population , environmental health
The objective of this experiment was to test in vitro embryo production (IVP) as a tool to estimate fertility performance in zebu bulls using Bayesian inference statistics. Oocytes were matured and fertilized in vitro using sperm cells from three different Zebu bulls (V, T, and G). The three bulls presented similar results with regard to pronuclear formation and blastocyst formation rates. However, the cleavage rates were different between bulls. The estimated conception rates based on combined data of cleavage and blastocyst formation were very similar to the true conception rates observed for the same bulls after a fixed-time artificial insemination program. Moreover, even when we used cleavage rate data only or blastocyst formation data only, the estimated conception rates were still close to the true conception rates. We conclude that Bayesian inference is an effective statistical procedure to estimate in vivo bull fertility using data from IVP
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