Clinical footscald and footrot in a New Zealand Romney flock [sheep] - phenotypic and genetic parameters

In a pedigree flock inspected during outbreaks over 6 years, sheep were rated for the presence of either or both diseases, and on a combined severity scale. Heritabilities are derived for each rating, and results indicate that selection of the best 5 percent of progeny-tested sires could reduce the...

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Bibliographic Details
Published inAustralian journal of agricultural research Vol. 39; no. 5
Main Authors Skerman, T.M, Johnson, D.L, Kane, D.W, Clarke, J.N. (New Zealand Ministry of Agriculture and Fisheries)
Format Journal Article
LanguageEnglish
Published 1988
Subjects
AMELIORATION DES ANIMAUX
DISTANCE GENETIQUE
DISTANCIA GENETICA
MEJORAMIENTO ANIMAL
OVIN
OVINOS
PEDERO
PODODERMATITE INTERDIGITEE
RESISTANCE AUX MALADIES
RESISTENCIA A LA ENFERMEDAD
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Summary:In a pedigree flock inspected during outbreaks over 6 years, sheep were rated for the presence of either or both diseases, and on a combined severity scale. Heritabilities are derived for each rating, and results indicate that selection of the best 5 percent of progeny-tested sires could reduce the incidence of disease by about 45 percent per generation. Prevalence of foot problems was greater among male than female lambs, and increased with age in ewes.
Bibliography:8901802
L73
L10
ISSN:0004-9409
DOI:10.1071/AR9880907