Metabolic traits affecting growth rates of pre-pubertal calves and their relationship with subsequent survival

Domest Anim Endocrinol. 2008 Oct;35(3):300-13. doi: 10.1016/j.domaniend.2008.06.005. Epub 2008 Jul 17.

Abstract

This study related growth and metabolic traits in Holstein-Friesian calves (n=45) to subsequent performance and longevity. Animals were measured at birth, 3, 6 and 9 months (weight, crown rump length (CRL), heart girth and height). Endocrine and metabolic traits were assessed at 6 months of age. These traits were not influenced by sire (n=5). Milk production and mortality records were obtained through 3 lactations. Seven heifers failed to achieve a lactation, 6 were culled after one, 17 after two and 15 (33%) survived >/=3 lactations. Birth weight and girth but not skeletal measures were highly positively correlated with the repeated size measurements at 3-9 months. Calves with higher cortisol at 6 months were smaller in weight and girth at 3 months, with reduced 3-6 months skeletal growth. GH secretion was related to height, weight and growth, whereas urea was most strongly related to CRL. Calves not achieving a single lactation had lower IGF-I. Calves with higher glucose or BHB were more likely to be culled after 2 lactations, an effect which was independent of yield. Size and metabolic measurements of growing calves may therefore prove useful in predicting longevity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Blood Glucose / metabolism
  • Body Size / physiology*
  • Cattle / blood
  • Cattle / growth & development*
  • Cattle / metabolism
  • Cohort Studies
  • Fatty Acids, Nonesterified / blood
  • Female
  • Growth Hormone / blood
  • Hydrocortisone / blood
  • Insulin / blood
  • Insulin-Like Growth Factor I / analysis
  • Lactation
  • Longitudinal Studies
  • Male
  • Milk / metabolism
  • Statistics, Nonparametric
  • Urea / blood

Substances

  • Blood Glucose
  • Fatty Acids, Nonesterified
  • Insulin
  • Insulin-Like Growth Factor I
  • Urea
  • Growth Hormone
  • Hydrocortisone