Interaction genotype-environment for dairy production in Mambi cattle from Cuba

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Arelis Hern?ndez
Raquel Ponce de Le?n
D. Guerra
Sonia Maria Garc?a
Gladys Guzman
Martha Mora

Abstract

A total of 40 042 records of milk production accumulated up to 305 d (L305), of 15 260 Mambi de Cuba cows (3/4 Holstein ? Zebu), from four genetic enterprises and 177 herds were used. The study purpose was assessing the existence or not of interaction genotypeenvironment (IGE) for dairy production in two production levels: normal (P1, of the calving years 1981- 1990) and low (P2, of the calving years 1991-2006). A univaried animal model was applied for estimating the genetic parameters and values (GV) in both production levels and years (P3, of the calving years from 1981 to 2006). The combination herd-year-four-month period of calving, age at calving as linear and square co-variable, the animal random effects, the effect of the permanent environment and the residues were included as fixed effects. The Pearson?s correlations between the GV of the 39 sires represented in both production levels were estimated. The heritability and repeatability were: 0.227 ? 0.029 and 0.473 ? 0.008, 0.059 ? 0.015 and 0.266 ? 0.014, 0.170 ? 0.020 and 0.418 ? 0.006, for the levels P1, P2 and P3, respectively. The correlation between the GV of the sires in P1 and P2 was of 0.66, so the effect of the interaction genotype-environment was proved. It is concluded that the environmental conditions should be considered for using the Mambi de Cuba sires.
Key words: genotype-environment interaction, Mambi de Cuba cattle, dairy production, genetic parameters, genetic values.

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How to Cite
Hern?ndez, A., Ponce de Le?n, R., Guerra, D., Garc?a, S. M., Guzman, G., & Mora, M. (2012). Interaction genotype-environment for dairy production in Mambi cattle from Cuba. Cuban Journal of Agricultural Science, 46(4). Retrieved from https://cjascience.com/index.php/CJAS/article/view/145
Section
Genetics
Author Biographies

Arelis Hern?ndez

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Raquel Ponce de Le?n

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

D. Guerra

Centro de Investigaciones para el Mejoramiento Animal, Centro de Investigaciones para el Mejoramiento Animal de la Ganader?a Tropical (CIMAGT), Ministerio de la Agricultura, Cuba. Avenida 101 No. 6214 entre 100 y 62, Reparto Loma de Tierra, Cotorro, Ciudad Habana

Sonia Maria Garc?a

Empresa Pecuaria Gen?tica de Matanzas, Finca ?San Andr?s?, Limonar. Matanzas, Cuba

Gladys Guzman

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

Martha Mora

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de Las Lajas, Mayabeque, Cuba

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