title: Classification of turkeys as low or high volume semen producers using discriminant analysis.
abstract: Medium White turkeys in Generation 10 of divergent selection for semen ejaculate volume (SEV) were classified into lines that produce either low or high volumes of semen using a multivariate statistical technique, discriminant analysis. The discriminant function was based on records of hen fertility, embryonic mortality in the early and late incubation periods, and the incidence of pipped eggs. A hit ratio, the proportion of birds correctly categorized as low or high, of .60 was obtained. The discriminant function was subsequently used to classify birds in Generation 12. A misclassification rate of .28 and .48 was obtained for birds in the low and high lines, respectively. It was concluded that the relatively low rates of misclassification indicate a potential method for identifying male and female turkeys as belonging to low or high SEV lines, based on fertility and incubation records.
authors.affiliation: Department of Animal Sciences, Oregon State University, Corvallis 97331-3402.
authors.forename: E J
authors.initials: EJ
authors.lastname: Smith
authors.forename: T F
authors.initials: TF
authors.lastname: Savage
mesh_terms: D000818:Animals; D016002:Discriminant Analysis; D005298:Fertility / Q000502:physiology; D008297:Male; D012661:Semen / Q000502:physiology*; D014422:Turkeys / Q000502:physiology*