Determination and Analysis of Main Characters of Hybrid Offspring by Crossing of Princess Chicken and Frizzle Chicken

In order to study the meat development value of F1hybrid offspring of Princess chicken(♂)and Frizzle chicken(♀),the body size traits,slaughter performance,meat quality,blood physiological and biochemical indexes of 12-week-old F1 hybrid offspring were measured.The results showed that:(1)The body length,keel length and shank length of male of hybrid offspring were significantly higher than those of female chickens,by 1.73 cm,2.60 cm,0.87 cm, respectively;(2)Slaughter performance:The live weight,carcass weight,semi-eviscerated weight, eviscerated weight,chest muscle weight,leg muscle weight,heart weight,semi-eviscerated ratio of male chickens were very significantly higher than those of female chickens,by 173.67g,176.22g, 170.08g,104.70g,30.90g,49.74g,2.79g and 2.34percentage points,respectively;the leg muscle ratio and wings weight were significantly higher than those of female chickens,by 3.90 percentage points and 16.56g;but sebum thickness of male chickens was very significantly lower than that of female chickens;(3)Meat quality:The percentage of chest muscle water loss of female chickens was significantly higher than that of the male;The leg muscle incarnadine L value and water loss rate of female chickens were very significantly higher than those of the male,but the incarnadine a value was very significantly lower than that of the male;(4)The blood physiological and biochemical indexes:The coefficients of variation of F1hybrid chicken blood physiological indicators were less than 20%;In addition to biochemical index of lactate dehydrogenase(LDH) andα-hydroxy butyric acid dehydrogenase(α-HBDH),the coefficients of variation were less than 40%.These results showed that the slaughter performance and meat quality of F1hybrid male chickens were better than those of female chickens.