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Comparison of different traits to evaluate the growth of bulls
bulls daily gains random regression breeding values variances
2015/6/5
The live weights of 8 243 performance-tested bulls from 100 to 400 days of age were analysed using random regression (RR) and single-trait animal models. Evaluations were done for live weight at 400 d...
Selection indexes for bulls of beef cattle
beef cattle bulls genetic parameters genetic gain breeding values breeding objective selection indexes
2015/6/2
Three selection indexes were constructed for bulls of beef cattle: IM for terminal crossing (in dairy herds), IZ for the selection of foundation sires for beef herd and IS for the selection of bulls f...
Effects of Tethering and Loose Housing on the Meat Quality of Hanwoo Bulls
Housing System Tethering Loose Housing Meat Quality Hanwoo Bull
2016/4/28
This study was carried out to investigate the effects of housing system on the carcass and meat qualities of Hanwoo (Korean cattle) bulls. Fourteen 6 months-old male calves were randomly divided into ...