Estimating the Genetic Parameters for Calving Score using a Threshold Model, in Charolais Breed

Authors

  • Rodica Stefania Pelmuș National Research-Development Institute for Animal Biology and Nutrition, 1, Calea Bucuresti, 077015, Balotesti, Romania
  • Horia Grosu National Research-Development Institute for Animal Biology and Nutrition, 1, Calea Bucuresti, 077015, Balotesti, Romania
  • Mircea Cătălin Rotar National Research-Development Institute for Animal Biology and Nutrition, 1, Calea Bucuresti, 077015, Balotesti, Romania
  • Mihail Alexandru Gras National Research-Development Institute for Animal Biology and Nutrition, 1, Calea Bucuresti, 077015, Balotesti, Romania
  • Cristina Van National Research-Development Institute for Animal Biology and Nutrition, 1, Calea Bucuresti, 077015, Balotesti, Romania

Keywords:

breeding value, cows, threshold model, calving score

Abstract

The aim of this study was to determine the breeding value and heritability for calving score using a threshold model for calves from Charolaise breed.  In this study were used records obtained from 2935 calves of Charolais breed from Romanian Breeding Association for Beef cattle. The mean for calving score was 1.35± 0.010. The breeding values for calving score for calves were ranged between -0.2749 and 0.3606. The heritability for calving score was low 0.139. The threshold model was a method of analysis for categorical trait calving score.

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Published

2023-05-31