Production Performance and Meat Quality of Qianhuang Multiple Crossbreeding Broilers

FU Zhu yin 1, HUA Shi shang 1, LI Dan sheng 2 (1.Animal Science Department,Guizhou University,Guiyang 550025; 2.Huaxi Agricultural Bureau,Guiyang 550025 CHINA)

broiler; crossing combination; production performance; physi chemical parameter of meat quality

The production performance and meat quality had been determined at 10 weeks of age for QianⅡ,H QianⅡ,H line and black feather crossing broilers,50 chicks each breed (line).The results were described as follows:the body weights were sequentially 1 413 , 1 754 , 1 925 and 1 510 g ;food conversion rates were 2.82,2.57,2.49 and 2.72; drawn poultry rates were 68.92%,70.90%,71.64% and 68.69%;breast and leg muscle percentages were 36.59% , 37.17% , 40.24% and 34.72% ; fiber diameters of breast muscle were 28.83 , 30.28 , 30.1 and 25.10 μm; water conservation percentages were 62.24%,61.25%,48.93% and 65.76% respectively. The contents of various essential amino acid were between two parents, or superior to the maximum of parents. The body weights at 10 weeks old of different crossing combination were analysed statistically, F=73.08(P<0.01).H line was very significantly larger than QianⅡ and black feather broiler(P<0.01), and was significantly larger than H QianⅡ. while H Qian Ⅱ was significantly larger than QianⅡ(P<0.05). The results indicated that the triple lines crossing broiler, H QianⅡ remained excellent meat quality originated from maternal line and acquired the advantage of growing fast inherited from paternal lines.