The association of social rank with paternity efficiency in competitive mating flocks of Zi goose ganders (Anser cygnoides L.)
文献类型: 外文期刊
作者: Zhang, Jiayue 1 ; Liu, Yang 1 ; Li, E. 1 ; Ning, Bolin 1 ; Zhang, Ying 1 ; Sun, Jinyan 2 ; Liu, Guojun 2 ; Liu, Shengjun 1 ;
作者机构: 1.Heilongjiang Bayi Agr Univ, Coll Anim Sci & Vet Med, Daqing 163319, Peoples R China
2.Heilongjiang Acad Agr Sci, Anim Husb Res Inst, Harbin 150086, Peoples R China
关键词: Zi goose; social rank; paternity efficiency; mating activity
期刊名称:POULTRY SCIENCE ( 影响因子:3.352; 五年影响因子:3.679 )
ISSN:
年卷期: 2021 年 100 卷 11 期
页码:
收录情况: SCI
摘要: The purpose of this study was to investigate the influence of social rank (SR) on paternity efficiency (PE) in competitive mating flocks of geese. Thirty ganders and 150 geese (Zi geese, Anser cygnoides L.) aged approximately one, were divided into 3 groups. Flock 1 included 10 ganders and 50 female geese, flock 2 included 11 ganders and 55 female geese, and flock 3 included 9 ganders and 45 female geese. The frequency of the agonistic behavioral interactions (ABI) of the ganders and mating activity (MA) were video recorded in each flock. The SR of each gander was determined by the frequency of ABI with a score of 1 to 3 (1 being the dominant and 3 the most subordinate). To clarify the difference between being dominant and submissive, we collapsed rank 2 and rank 3 into a "subordinate" category. In total, 280 eggs were collected, and 219 goslings were hatched. Parent-offspring relationships among 399 individuals from the 2 generations were identified via 20 microsatellite markers, and the PE of each gander was calculated. There was no significant difference in individual body weight and semen quality factor among the different SR groups (dominant and subordinate), and the SR of the ganders was significantly correlated to PE for the 3 flocks. Goslings of high-ranking ganders contributed 48.68% in flock 1, 37.50% in flock 2, and 47.62% in flock 3. Approximately 45% of all goslings were sired by the 7 dominant ganders of the 30 total ganders across the 3 flocks. As SR has been shown to be heritable in geese, the selection of high-ranking ganders might be an effective way to improve reproductive efficiency in commercial geese flocks.
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