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Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/123456789/4611

Título : Efecto de la Variante Genética de la k-Caseína sobre la Producción y Composición de la Leche de un Rebaño Holstein en el Trópico
Otros títulos : Effect of the k-Casein Genetic Variant on Milk Yield and Composition in a Holstein Herd in the Tropics
Autor : Alvarado, Carlos
Meléndez, Bernavé
Clavijo, María
Coronado, Matilde
Armas, Santiago
Giménez, Olymar
Palabras clave : k-casein
cow milk
breeds
Holstein
Fecha de publicación : 23-Oct-2013
Resumen : To evaluate the effect of k-casein polymorphism on milk yield and composition in a Holstein herd located in the central region of Venezuela, different k-casein genetic variants present in the herd were determined by the isoelectric focusing technique. A total of 294 milk samples were analyzed using a completely randomized statistical design with a 23 factorial arrangement. The allele A of casein was found in 92% of the cows in the herd, while the allele B was found in 52%. When the levels of milk yield of each animal were compared, it was found that those animals with allele A had a higher daily milk yield. The statistical analysis of the results of milk composition from milk samples showed that the k-casein polymorphism found in the Holstein herd has no effect on the content of the main components of milk.
URI : http://saber.ucv.ve/jspui/handle/123456789/4611
ISSN : 0258-6576
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