Acta Veterinaria et Zootechnica Sinica ›› 2020, Vol. 51 ›› Issue (9): 2130-2137.doi: 10.11843/j.issn.0366-6964.2020.09.010

• ANIMAL BIOTECHNOLOGY AND REPRODUCTION • Previous Articles     Next Articles

Application of Somatic Cell Cloning Technology in the Protection of Genetic Resources of Wujin Pigs

MAO Shengyi1,2, LI Zhuo1,2, KUI Hua2, JIAO Deling1,2, LI Yuying1,2, QING Yubo1,3, GUO Jianxiong1, WEI Yunfang1,2, WEI Hongjiang1,3*   

  1. 1. Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming 650201, China;
    2. College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China;
    3. College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
  • Received:2020-02-18 Online:2020-09-25 Published:2020-09-25

Abstract: The purpose of this experiment was to study the growth and developmental ability and reproductive performance of cloned Wujin pigs fire hair line by somatic cell cloning technology, and provide a theoretical basis for the application of somatic cell cloning technology in the conservation of local excellent pig breeds. In this study, the ear samples were collected from 3 male and 12 female pigs which met the characteristics of Wujin pigs. The 3 boars were 3, 6 and 11 months old, respectively. The sows had a large age gap, from 2 months old to 10 years old, the three sows and one boar of 3-month-old had been castrated and the sow of 10-year-old had no reproductive capacity. The ear fibroblast cell lines were successfully established from 15 Wujin pigs. Then the fibroblast cells from 3-month-old() and 10-year-old(♀) pigs were used as donor cells for somatic cell nuclear transfer. The cloned embryos were transplanted into 16 surrogate sows and 25 cloned pigs were obtained. The growth and development indexes of these cloned pigs were all normal. After sexual maturity, the male and female cloned pigs mated naturally and 39 live piglets (F1) were obtained. This study successfully cloned Wujin pigs by somatic cell nuclear transfer technology, and cloned Wujin pigs had normal growth and developmental ability and reproductive performance. The study result provides a new way for the conservation of local pig breeds.

Key words: Wujin pigs, somatic cell cloning technology, growth performance, reproductive performance

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