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Báo cáo sinh học: "Selection responses for the number of fertile eggs of the Brown Tsaiya duck (Anas platyrhynchos) after a single artificial insemination with pooled Muscovy (Cairina moschata) semen"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: Selection responses for the number of fertile eggs of the Brown Tsaiya duck (Anas platyrhynchos) after a single artificial insemination with pooled Muscovy (Cairina moschata) semen | 597 Genet. Sel. Evol. 34 2002 597-611 INRA EDP Sciences 2002 DOI 10.1051 gse 2002025 Original article Selection responses for the number of fertile eggs of the Brown Tsaiya duck Anas platyrhynchos after a single artificial insemination with pooled Muscovy Cairina moschata semen Yu Shin CHENGa Roger ROUVIERb c Jean Paul POIVEYb Jui Jane Liu TAIa Chein TAId Shang Chi HUANGa a Taiwan Livestock Research Institute Council of Agriculture Hsin-Hua Tainan 71210 Taiwan Republic of China b Station d amélioration génétique des animaux Institut national de la recherche agronomique Centre de recherches de Toulouse BP 27 31326 Castanet-Tolosan Cedex France c Department of Animal Science National Chung-Hsing University Taichung 40227 Taiwan Republic of China d Institute of Biotechnology National Cheng-Kung University Tainan 712 Taiwan Republic of China Received 7 June 2001 accepted 6 May 2002 Abstract - A seven-generation selection experiment comprising a selected S and a control C line was conducted with the objective of increasing the number of fertile eggs F of the Brown Tsaiya duck after a single artificial insemination AI with pooled Muscovy semen. Both lines consisted of about 20 males and 60 females since parents in each generation and each female duck was tested 3 times at 26 29 and 32 weeks of age. The fertile eggs were measured by candling at day 7 of incubation. The selection criterion in the S line was the BLUP animal model value for F. On average 24.7 of the females and 15 of the males were selected. The direct responses to the selection for F and correlated responses for the number of eggs set Ie the number of total dead embryos M the maximum duration of fertility Dm and the number of hatched mule ducklings H were measured by studying the differences across the generations of selection between the phenotypic value averages in the S and C lines. The predicted genetic responses were calculated by studying the differences between the S and C lines in averaged values of