Study on selection improvement and match techniques of coarse wool type rabbits

Research results are followingL1) Now there are 285 breeding rabbits in the breeding group of Wan Strain Coarse wool Angora (WSCWA). Wool yield and percentage of coarse wool (including bristles and awns) at 11 months were improved 16.23% and 5.28% compared with the results measured in 1995,improved 13.63% and 4.94% compared with the foundamental group. The length, diameter, tensile strength and stretching extend of coarse wool at 11months were respectively 11.55cm, 47.05mum, 24.33cN and 47.33%, those of downs were repectively 7.36 cm, 15.64mum, 4.73CN and 45.37%. Body weight, body length and chest measurement were improved 3.42%, 2.13% and 1.45% compared with the results measured in 1995.Reproductive performances were medium, the litter size and the liver litter size at first birth were respectively 7.21 and 6.82,litter weight at birth, 21 days and weaning were respectively 362.72g, 2243.71g and 5027.23g,survival rate at weaning was 91.72%. (2) Selected and detemined the best hormone treatments and the best dose of hormone for estrus synchronization and superovulation, determined the best time of embryo collection and embryo transfer, knew the basic procedure and methods of MOET, at the same time used this technology in Angora breeding. (3)Studied French advance harvesting methods of defleecing with “Lagodendron”, selected and determined the best dose and the harvesting methods.