Description of the growth curve for Angus pasture-fed cows under extensive systems.

  title={Description of the growth curve for Angus pasture-fed cows under extensive systems.},
  author={Virginia Goldberg and O. Ravagnolo},
  journal={Journal of animal science},
  volume={93 9},
Growth curves are useful for describing the sigmoid shape of an animal's weight pattern over time. The purpose of the present study was to describe, for the first time, a complete growth curve for pasture-fed Angus cows in Uruguay and to analyze the major fixed effects that affect the estimation of mature cow weight (CW). A total of 22,743 records from 5,284 cows belonging to 73 herds were used in the statistical analysis. Five nonlinear models (Brody, Gompertz, Von Bertalanffy, logistic, and… CONTINUE READING

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