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Leptin Testing

A single nucleotide polymorphism (SNP), found in the Leptin gene has been shown to have a large impact on several performance and quality traits of economic importance in beef production.

Some of these traits include:

  • Weaning weight
  • Cow milk production
  • Accumulation of backfat
  • Yield Grade and Quality Grade
  • Feed Intake

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Historically, breed and herd improvement has been achieved through visual inspection and choosing animals based on phenotype. Producers have been selecting for genetic variants associated with performance traits, albeit with less accuracy and precision than current technology provides. Genetic testing identifies the variants associated with performance and quality traits allowing producers to accurately and precisely select desirable traits.

Leptin is a hormone that regulates feed intake, energy expenditure and whole body energy balance. A SNP in the Leptin gene has been associated with several economically important traits including milk production, weaning weight, backfat, marbling, quality grade, yield grade, dry matter intake, and days on feed. There are 3 Leptin variants:

  • CC (lean) animals have less fat and therefore, are less economically favourable
  • CT animals are economically intermediate
  • TT (fat) animals have more fat and therefore, are more economically favourable

Other Services: Q-sort Q-link Genetic Defect Testing