Comparative Growth Performance and Some Carcass Traits of Calves of Different Cattle Breeds Fed Pasture and Concentration

The aim of the current study was to explore growth performance and carcass traits using ultrasound measurements calves different cattle breeds under pasture concentration feeding system. A total 25 male between ages 6 7 months with an average body weight 162.37 ± 7.7 kg were fed two separate fattening trials for seven (pasture finishing period). Animals divided into five groups (five each breed): Kurdi, Rustaki, Jenoubi, Herford Friesian crossbred. daily gain similar (P > 0.05) during (pasture) period, while these values significantly higher in Rustaki crossbred period. size among breeds. highest increase Longissimus muscle area subcutaneous fat thickness observed calves. In conclusion, possess promising potential beef production barn rearing or