ESTIMATION OF HERITABILITY OF CALVING INTERVAL IN CROSSBRED CATTLE
Journal Title: Revista MVZ Cordoba - Year 2008, Vol 13, Issue 1
Abstract
Objetive. To estimate the heritability of interval calving in crossbred cattle. Materials and methods. Information from database of La Leyenda farm, in the municipality of Caucasia (Antioquia) was used. A single-trait animal model was used, that included genetic group, year of birth, season of birth and the number of calvings as fixed effects and the additive direct genetic, permanent environmental and residual as random effects. Results. The heritability estimated was 0.15 ± 0.07 and the phenotypic mean was 544 ± 97 days. Conclusions. The heritability for the interval between calvings was low, indicating that little genetic progress can be achieved by selecting for this characteristic.
Authors and Affiliations
Oscar Vergara G, M. Sc *| Universidad de Antioquia, Grupo de Genética y Mejoramiento Animal. Medellín, Colombia.Universidad de Córdoba, Facultad de Medicina Veterinaria y Zootecnia. Departamento de Ciencias Pecuarias. Montería, Colombia.Correspondencia: overgara@sinu.unicordoba.edu.co, Mario Cerón M, Ph. D| Universidad de Antioquia, Grupo de Genética y Mejoramiento Animal. Medellín, Colombia., Naudin Hurtado L, M. Sc| Universidad de Antioquia, Grupo de Genética y Mejoramiento Animal. Medellín, Colombia.Faculdade ciências agrárias e veterinárias, Instituto de Pesquisas Meteorológicas UNESP, São Paulo Brasil., Elkin Arboleda Z, M. Sc| Universidad de Antioquia, Grupo de Genética y Mejoramiento Animal. Medellín, Colombia., Juan Granada P, Zoot| Universidad de Antioquia, Grupo de Genética y Mejoramiento Animal. Medellín, Colombia., Clara Rúa B, Zoot| Universidad de Antioquia, Grupo de Genética y Mejoramiento Animal. Medellín, Colombia.
Keywords
Related Articles
- EP ID EP3087
- DOI -
- Views 423
- Downloads 21
PANCYTOPENIA IN A CANINE CAUSED FOR ADMINISTRATION OF ESTROGENS TO AVOID A NOT WANTED PREGNANCY
Objective. To present the clinical case of a pancytopenia canine patient due to abuse of estrogens as birth-control method. Materials and methods. Canine patient of race Poodle 8 years old, which was taken to consultatio...
Study of spanish dove breeds based on the analysis of qualitative morphological characteristics
Objective. To evaluate a possible morphological base that supports a rational and non-arbitrary classification of dove breeds, the phenetic relationship between different breeds was studied. Materials and methods. Twenty...
EGG ENRICHMENT WITH OMEGA-3 FATTY ACIDS BY MEANS OF FLAXSEED SUPPLEMENT (Linum usitatissimum) IN THE DIET
Objective. To increase the content of omega-3 (n-3) fatty acids in hen´s eggs by supplementing flaxseed in the diet. Materials and methods. Four levels of flaxseed amounts were evaluated: 0% (L0), 10% (L10), 15% (L15) an...
Productive performance and carcass yield of turkey fed feather meal treated with NaOH
Objective. Evaluate the productive performance and carcass yield of growing turkeys fed with diets including feather meal. Materials and methods. The treatments were: a control diet and two diets with feather meal (FM) t...
Antibacterial activity of the cacao bean husk, Theobroma cacao L
Objective. To test the antibacterial activity of different fractions of cacao bean husk (Theobroma cacao L.). Materials and methods. Antibacterial activity of different fractions of cacao bean husk was analyzed using aga...