您好，欢迎访问上海市农业科学院 机构知识库！
上海市农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Research Note: Study on the in-situ preservation of pigeons based on the level of endangerment of genetic resources

文献类型： 外文期刊

作者： Li, Xin 1 ; Hou, Haobin 1 ; Shen, Xiaohui 1 ; Zhao, Weimin 3 ; Chen, Yansen 4 ; Yao, Junfeng 1 ; Yang, Changsuo 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Shanghai 201106, Peoples R China

2.Natl Poultry Engn Technol Res Ctr, Shanghai 201106, Peoples R China

3.Shanghai Golden Royal Pigeon Ind Co LTD, Shanghai 201508, Peoples R China

4.Genix Biotek Technol Shanghai Co Ltd, Shanghai, Peoples R China

关键词： pigeon; living species preservation; effective population content; endangered rating

期刊名称：POULTRY SCIENCE （ 影响因子：3.8； 五年影响因子：4.1 ）

ISSN： 0032-5791

年卷期： 2024 年 103 卷 10 期

页码：

收录情况： SCI

摘要： The large-scale and intensive development of the meat pigeon breeding industry have resulted in the replacement of a large number of low-performance local breeds by a few breeds with excellent production performance. However, due to the characteristics of pigeon species that are monogamous, for which the W chromosome cannot be recovered and for which semen cannot be cryopreserved, the preservation of pigeon species is still mainly based on in-situ preservation. In this study, pigeons were classified into 6 classes of endangerment based on the criteria of the 100-year inbreeding coefficient of poultry populations in the "Assessment of Endangered Poultry Genetic Resources" (NY/T 2996 -2016). The results show that when the generation interval was 1.5 yr, the number of ideal populations with the same gene frequency variance or the same heterozygosity decay rate of pigeons in class 1 to 5 was <= 149, 150 to 204, 205 to 316, 317 to 649 and >= 650. In random- reserved breeding, when the generation interval was 1.5 yr, the number of male (female) pigeons corresponding to class 1 to 5 was <= 74, 75 to 102, 103 to 157, 158 to 324 and >= 325. In family-equal-reserved breeding, when the generation interval was 1.5 yr, the number of male (female) pigeons corresponding to class 1 to 5 was <= 36, 37 to 50, 51 to 78, 79 to 162 and >= 163. When the generation interval was 1.5 yr, the inbreeding increments corresponding to class 1 to 5 were >= 0.00335, 0.00244 to 0.00334, 0.00159 to 0.00243, 0.00078 to 0.00158 and <= 0.00077; with the same population size, the inbreeding coefficient and inbreeding increment decreased with the increase of generation interval; the population effective content, inbreeding coefficient and inbreeding increment of family-equal-reserved pigeons were lower than those of random-reserved pigeons. The results of this study have certain reference value for analyzing the status quo of local and endangered species, constructing live gene banks and breeding farms of poultry genetic resources, and rescuing endangered species.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：上海市农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台