Abstract

The data comprised records from 1832 pigs fed ad libitum using single space electronic feeders. Genetic and phenotypic parameters were estimated for feeding pattern and performance test traits by multivariate restricted maximum likelihood with an individual animal model. The feeding pattern traits were included as selection criteria in the predicted indices, which resulted in an increase in the accuracy of selection, particularly for daily gain and feed conversion ratio. The inclusion of part test records for feeding patterns resulted in similar correlated responses to those when whole test records were used. It was concluded that feeding pattern traits could be used to improve the accuracy of selection. They may also be useful in reducing the length of the test period necessary for accurate measures of feed intake. 

A. D Hall, William G Hill, P. R Bampton, A. J Webb

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 23: Opening: plenary; technology; transfer; beef cattle; dairy cattle; pigs., , 547–550, 1998
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