Reproductive performance of Zebu crossbred cows with Wagyu, Blonde semen and growth performance, meat quality of their offspring at smallholders in Vinh Phuc province
This study was conducted to exam the reproductive performance of Zebu crossbred cows with Wagu, Blonde semen and growth performance, meat quality of their offspring at smallholders in Vinh Phuc province. Total of 600 Zebu crossbred cows and 425 calves from newborn to 15 months of age were used. The results indicated that the reproductive performance of Zebu crossbred cows inseminated with Wagyu, Blonde semen consists of number of AI per conceptionconception rate, gestation length, return to estrus after parturition, survival rate were 2.51, 2.48; 79.67; 80.67%; 87.87%, 88.84%; 285; 285.33 days; 79.33; 80.00 days; 98.10%, 98.60% respectively. Bodyweight of calves at birth and 15 months of age in offspring from Zebu crossbred × Blonde have higher (P<0.05) than Zebu crossbred × Wagyu, corresponding to 25.80; 27.90; 306.4; 327.60 kg in males; 24.50; 26.40; 271.70; 293.50 kg with females. Average daily gain of calves Zebu crossbred × Blonde was higher than Zebu crossbred × Wagyu corresponding to 707.7; 753.30 g/head/day in males; 549.31; 593.6 g/head/day in females. At 15 months of age the carcass, bone percentage of beef which were offspring from Zebu crossbred × Blonde higher than Zebu crossbred × Wagyu corresponding to 49.8; 50.80% in males; 49.30; 50.80% in females. Muscle percentage in two groups were not significant diferrence. Meat quality of two groups were the same, these criticals decreased when increase store period.
