Genetic association between longevity and linear type traits of Holstein cows

  • Elisandra Lurdes Kern Federal University of Rio Grande do Sul; Faculty of Agronomy; Dept. of Animal Science; Universidade Federal do Rio Grande do Sul
  • Jaime Araujo Cobuci Federal University of Rio Grande do Sul; Faculty of Agronomy; Dept. of Animal Science; Universidade Federal do Rio Grande do Sul
  • Cláudio Napolis Costa Embrapa Dairy Cattle; Embrapa
  • Concepta Margaret McManus National Institute of Science and Technology-Information-Genetic Sanitary of Brazilian Livestock; Instituto Nacional em Ciência e Tecnologia - Informação Genético-Sanitária da Pecuária Brasileira
  • José Braccini Neto Federal University of Rio Grande do Sul; Faculty of Agronomy; Dept. of Animal Science; Universidade Federal do Rio Grande do Sul

Abstract

Longevity is a desirable trait in the dairy industry because of its relationship to profitability. The aim of this study was to estimate genetic parameters for longevity measurements related to productive life, or life in the herd, and linear type traits of Brazilian Holstein cows born between the years 1990 and 2008. The (co) variance components were estimated by the restricted maximum likelihood method. The heritability for measurements of longevity and linear type traits ranged from 0.05 to 0.07 and 0.08 to 0.39, respectively. The genetic correlations between measurements of longevity and linear type traits ranged from -0.39 to 0.31. Direct selection for longevity does not necessarily lead to long-lived cows, due to low heritability. Indirect genetic selection for udder depth, bone quality, udder height, rear teat placement and conformation traits showed the highest genetic correlations with measurements of time between birth and last milk record and time from first calving to last milk record.

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Published
2015-06-01
How to Cite
Kern, E., Cobuci, J., Costa, C., McManus, C., & Braccini Neto, J. (2015). Genetic association between longevity and linear type traits of Holstein cows . Scientia Agricola, 72(3), 203-209. https://doi.org/10.1590/0103-9016-2014-0007
Section
Animal Science and Pastures