Open AccessReproductive evaluation of Charolais and Charbray bulls on the reproductive efficiency of herds in warm subhumid climate of Veracruz
Author(s) -
Víctor Fernando Torres-Aburto,
Antonio Hernández-Beltrán,
Patricia Cervantes-Acosta,
Manuel Barrientos-Morales,
Arrieta Gonzalez-Armando,
Araceli Rodríguez-Andrade,
Herminio Hernández-Flores,
Belisario Domínguez-Mancera
Publication year - 2021
Publication title -
agro productividad
Language(s) - English
Resource type - Journals
ISSN - 2594-0252
DOI - 10.32854/agrop.v14i6.1936
Subject(s) - biology , zoology , herd , pregnancy rate , ice calving , libido , sperm , semen , pregnancy , lactation , endocrinology , anatomy , genetics , botany
Objective: To correlate the Breeding Soundness Evaluation (BSE) of Charolais andCharbray bulls in the warm subhumid climate and its effect on the Pregnancy rate andCalving interval of herds to estimate differences between breeds.Design/methodology/approach: BSE was carried out on N = 90 Bulls; Charolais (n =33) and Charbray (n = 57), evaluated in situ during the period 2017 to 2019. Bull (age, body condition, libido, and scrotal circumference), Semen (concentration, motility, and volume), Herd (Pregnancy rate and Calving interval) and environment variables (Rainy and Dry season) were analyzed with the one-way ANOVA, Factorial, Multiple regression, and Multivariate analysis.Results: Charolais and Charbray bulls show similar results in the BSE (p>0.05) in awarm subhumid climate.Limitations/implications: Year season (Rainy or Dry) do not affect (p<0.05) the BSErating. Libido is associated (p<0.05) with age (R=-0.42), sperm motility (R=0.67), spermconcentration (R=0.66) and pregnancy rate (R=0.63).Findings/conclusions: Variables with high association (p<0.05) with pregnancy ratewere libido (R=0.63), motility (R=0.60), sperm concentration (R=0.51) and age (R=-0.50); variables with high association (p<0.05) with calving interval were: age (R=0.74)and libido (R=-0.33). Charolais and Charbray bulls show similar reproductive efficiencyin herds under a warm subhumid climate in Veracruz.