GM 04. Scrotal measurements, weight, and semen quality in Nellore bulls

  • Jose Aurelio Bergmann Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, Mi
  • Celia Raquel Quirino LMGA/CCTA/Univ. Estadual do Norte Fluminense
  • V. R. Vale Filho, Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, MG
  • V. J. Andrade Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, Mi
  • C. G. Fonseca Universidade Federal de Minas Gerais. Escola de Veterinária. Belo Horizonte, Mi

Abstract

Field data on 215 Nellore bulls (92sires and 123 sons), born from 1989 to 1993, were analyzed using DFREML methodology under uni and bivariate animal models to estimate heritabilities, phenotypic and genetic correlation between testis measurements, body weights and semen characteristics. Heritability estimates for scrotal circumference, left and right testis length and width were, respectively, 0.87, 0.89, 0.89, 0.90 and 8.85. Heritability estimates for motility, volume and vigor were, respectively, 0.12, 0.10 and 0.59. Genetic correlation between all testis measurements were high (from 0.61 to unit). Genetic correlation between scrotal circumference and semen motility, volume and vigor were, respectively, 1.00, 0.00 and 0.69.

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Author Biography

Celia Raquel Quirino, LMGA/CCTA/Univ. Estadual do Norte Fluminense
DESEO SER REFERI O CONSULTOR `AD HOC` DE LA revista Archivos Latinoamericanos de Produccion Animal. LENGUA NATIVA ESPAÑOL, RESIDENCIA Y TRABAJO EN BRASIL. Areas de actuación: Producción y Mejoramiento Animal de Bovinos, Ovinos y Bubalinos. Comportamiento sexual.
Published
2005-10-03
How to Cite
Bergmann, Jose Aurelio, Celia Raquel Quirino, V. R. Vale Filho, V. J. Andrade, and C. G. Fonseca. 2005. “GM 04. Scrotal Measurements, Weight, and Semen Quality in Nellore Bulls”. Latin American Archives of Animal Production 5 (3). https://ojs.alpa.uy/index.php/ojs_files/article/view/339.