Conference paper
GENETIC PARAMETERS FOR DAILY GAIN, MUSCLE AREA AND FAT THICKNESS IN SHEEP
Torkild Liboriussen
; Danish Institute of Animal Science, Research Centre Foulum, Denmark
Abstract
The purpose of this analysis was to estimate appropriate genetic parameters (heritabilities and genetic correlations). The edited data set included complete test results from 1534 animals which had been performance tested from 1983 to 1994. The relationship matrix also included 3053 ancestores without records. The animals belonged to six different breeds (Texel, Oxforddown, Leicester, Shropshire, Marsh and Dorset). Direct selection for each trait individually will be highly effective in altering the genetic level for that particular trait. Correlated responses in the other traits will be very small. In order to obtain higher growth capacity, increased muscularity and reduced fatness, selection of performance tested rams should be based on a selection index, which includes the performance for Daily gain, LD-area and Fat thickness.
Keywords
Hrčak ID:
164569
URI
Publication date:
20.1.1997.
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