Response to Partial Selection on Clean Fleece Weight in South Australian Strong-Wool Merino Sheep III. Genetic Distance Between Flocks
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چکیده
منابع مشابه
Genetic Parameters in Merino Sheep GENETIC RELATIONSHIPS BETWEEN CARCASS QUALITY AND WOOL PRODUCTION TRAITS IN AUSTRALIAN MERINO RAMS
The heritability of carcass quality traits and the genetic correlations between wool production and these carcass quality traits were estimated on 1216 Merino rams. The results showed that carcass quality traits are moderately heritable but pH appears to be lowly heritable. Yellowness and redness of L. dorsi had very low heritability estimate. Moderate negative genetic relationships were found ...
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Merino yearling records from 1988 to 1992 birth years in ultrafine wool selection and random control flocks at Tara Hills High Country Station, New Zealand were analysed for live weight, fleece weight and wool characteristics. Estimates of heritability, genetic and phenotypic correlations among traits using REML methods are presented. Heritabilities (h2) of birth, weaning, autumn, spring and su...
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Domestication and selection are processes that conserve the pattern of genetic diversities between and within populations. Identification of genomic regions that are targets of selection for phenotypic traits is one of the main aims of research in animal genetics. An approach for identifying divergently selected regions of the genome is to compare FST values among loci to estimate the genetic v...
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Yearling live weight and fleece trait data were obtained from between 2214 and 2270 yearling SA Mutton Merino progeny of the Elsenburg flock during a 20-year period from 1983 to 2002. Information of (co)variances for these traits in SA Mutton Merinos is exceedingly scarce in the literature. Estimates of (co)variance components and ratios were thus obtained from these data, using an Animal Model...
متن کاملMerino Sheep Selected for Divergent Fleece Weight Do Not Differ in the Proportion of Sulphur-containing Keratin Wool Proteins M.bray
Sixteen, 18-month old Merino rams from the SARDI Selection Demonstration Flocks (SDFs) were selected for divergent estimated breeding values (EBVs) for wool production. All sheep had similar total follicle numbers and live weights, and were fed a high-S or a low-S containing diet for 6 weeks prior to the collection of wool samples. Wool growth rate (WGR) and wool S concentration were measured. ...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1978
ISSN: 0004-9417
DOI: 10.1071/bi9780667