Comparison Of Genetic Models To Analyse Feed Efficiency

Comparison Of Genetic Models To Analyse Feed Efficiency - Antonio Torres-Vazques
Tuesday 29th May

Providing feed to animals is a major input cost in almost any animal production system. The efficiency of converting this feed into useable animal products, commonly referred to as feed efficiency, has become a common objective in many beef cattle breeding programs. The interest in feed efficiency has increased over the last decades. Not only because is important to increase food production due to the growing human population, but also because feed efficiency is related with the feed cost of production.  Residual feed intake is increasing in popularity as a measure of feed efficiency in beef cattle. The genetic analysis of traits directly related to estimate residual feed intake (e.g. live weight and daily feed intake) must be done with greatest possible accuracy. In this context, we compare different genetic models to analyse live weight and daily feed intake, and we study how the genetic relationship between these traits change over time.

Antonio Torres-Vazquez is a veterinarian in his second year of his PhD. His research interest ranges from estimation of genetic parameters to optimisation of breeding programs. Antonio has completed a Master in Science with specialization in Animal Breeding and Genetics and currently is investigating the genetic variability of feed efficiency traits in Australian Angus Cattle.

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