Determination and analysis of body size and slaughter performance of Hetian chickens at different ages
Hetian chickens were selected as the research material,and body size and slaughter performance were determined at 150 days of age(market age)and 300 days of age,respectively.The results showed as follows:the body weight,oblique length,keel length,chest depth,chest width and shin circumference of adult Hetian cocks(300 days of age)were significantly higher than those of market age cocks(P<0.05,P<0.01).The body weight,body oblique length,breast depth,breast width and shin length of adult Hetian hens(300 days of age)were significantly higher than those of market age hens(P<0.05,P<0.01).The slaughter rate of 300-day-old Hetian cocks was significantly higher than that of 150-day-old(P<0.01),and the leg muscle rate of 150-day-old Hetian hens was significantly lower than that of 300-day-old Hetian hens,but there was no significant difference in other slaughtering performance(P>0.05).This provides a theoretical basis for breeding preservation and further development and utilization of hetain fowl.
Different day oldHetian chickenBody measurementSlaughter performance
国家科技期刊平台
NSTL
万方数据
