Variance components due to direct genetic, maternal genetic and permanent environmental effect for growth and feed-efficiency traits in young male Japanese Black cattle.

Abstract excerpt

Variance components and genetic parameters were estimated using data recorded on 740 young male Japanese Black cattle during the period from 1971 to 2003. Traits studied were feed intake (FI), feed-conversion ratio (FCR), residual feed intake (RFI), average daily gain (ADG), metabolic body weight (MWT) at the mid-point of the test period and body weight (BWT) at the finish of the test (345 days). Data were...

Topics

• Animal Feed
• Animal Nutritional Physiological Phenomena
• Animals
• Breeding
• Cattle
• Diet
• Environment
• Female
• Genetic Variation
• Male
• Weight Gain