ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2005, Vol. 36 ›› Issue (6): 550-554.doi:

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Study of Angora Goat Improving Jianchang Black Goat for Mohair Production

WANG Jie; XU Jin-rui; SHEN Fu-jun; PAN Ai-luan;OUYANG Xi;WANG Yong;BAI Wen-lin; YANG Yi; GUO Peng-yan; JIANG Yu; QIN Zhi-hong;WANG Tong-jun;OUQI La-yi; MA Yu-cai
  

  1. 1. College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China; 2. Animal Husbandry and Veterinary Science Institute of Liangshan, Xichang 615000, China; 3. Animal Husbandry Bureau of Meigu County, Meigu 616400,China; 4. Animal Husbandry Bureau of Zhaojue County, Zhaojue 616100, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-06-25 Published:2005-06-25

Abstract: Appearance, biochemical and molecular genetic markers were applied into the process of Mohair production using Angora goat gradebreed Jianchang black goat in order to establish crossbreeding program. Angora goat, Jianchang black goat and their generations F1, F2, F3 and H were all studied in this research. The results of appearance genetic markers research showed that the individuals of white wool in F2, F3 and H generations were 93.5% ,100% and 100% respectively. The percentages of homogeneity and nearly homogeneity individuals in F2 ,F3 and H generations were 27.7%,70.2% and 65.3% respectively. The Mohaw yields of adult mals and females increased with the increased of generations ,but which not reached marked difference level between F3 with H and F2,H with F3(P>0.05). The average adult body weights increased in F1 and F2 generation,but is not marked in F3 generation(P>0.05), declined in H generation(P>0.05). The study of biochemical genetic marker demonstrated that average gene heterozygosity and gene consistency in Agora goat, Jianchang black goat, F3 and H generations were 0.113 1 and 0.886 9, 0.062 1 and 0.937 9, 0.110 3 and 0.889 7, 0.110 4 and 0.889 6 respectively. The genetic distance is 0.003 9 and 0.004 0, the genetic similarity coefficient is 0.996 1 and 0.996 0 between Angora goats and F3 and H generation. DNA fingerprinting technique as molecular genetic marker was also used in the research. The results revealed the similarity coefficient in different populations in Angora goats, F2, F3, and H generations were 0.454 0, 0.407 6, 0.611 3 and 0.610 9 respectively, which reached marked difference level between Angora goats with F3 and H generations(P<0.01). The results of biochemical level and molecular level supported that cross breeding should be applied in F2 and F3 generation.