Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Probability statements about the transmitting ability of progeny-tested sires for an all-or-none trait with an application to twinning in cattle | Genet. Sei. Evol. 1989 21 359-376 Elsevier INRA 359 Original article Probability statements about the transmitting ability of progeny-tested sires for an all-or-none trait with an application to twinning in cattle . Foulley1 and s. Im2 1 Institut National de la Recherche Agronomique station de génétique quantitative et appliquée centre de recherches de Jouy 78350 Jouy-en-Josas 2 Institut National de la Recherche Agronomique laboratoire de biometric centre de recherches de Toulouse BP 27 31326 Castanet-Tolosan Cedex France received 20 September 1988 accepted 17 April 1989 Summary - This paper compares three statistical procedures for making probability statements about the true transmitting ability of progeny-tested sires for an all-or-none polygenic trait. Method I is based on the beta binomial model whereas methods II and III result from Bayesian approaches to the threshold-liability model of Sewall Wright. An application to lower bounds of the transmitting ability of superior sires with a high twinning rate in their daughter progeny is presented. Results of different methods are in good agreement. The flexibility of these different methods with respect to more complex structures of data is discussed. genetic evaluation all-or-none traits beta binomial model threshold model Bayesian methods Resume Enonces probabilistes relatifs à la valeur génétique transmise de pères testés sur descendance pour un caractère tout-ou-rien avec une application la gemellite Chez les bovins. Get article compare 3 procedures statistiques en yue de la formulation d enonces probabilistes relatifs à la valeur génétique transmise de pères testés sur descendance pour un caractère polygénique tout-ou-rien. La méthode I repose sur le modèle beta binomial alors que les methodes II et III découlent d approches bayésiennes du modèle à seuils de s. Wright. Une application concernant la borne inferieure de la valeur génétique transmise de pères d elite présentant un taux de gémellité éỉevé ehez
