Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/3062
Title: | Incorporating subjectively assessed sheep and wool traits into genetic evaluations for merino sheep. 2: Phenotypic and genetic correlations | Contributor(s): | Brown, Daniel (author); Ball, Alex (author); Mortimer, R (author); Oppenheimer, M (author) | Publication Date: | 2002 | Handle Link: | https://hdl.handle.net/1959.11/3062 | Abstract: | Using pedigree and performance records obtained from two Merino breeders, the phenotypic and genetic relationship between subjectively assessed sheep and wool traits and objectively measured wool traits was estimated. The subjective traits were all favourably genetically correlated with fibre diameter. The genetic relationship with body weight, greasy fleece weight and fibre diameter variation were generally small. If Petali used the subjectively assessed wool-classing trait alone for selection, this would also lead to significant reductions in greasy-fleece weight. The ratio of greasy fleece weight to fibre diameter cubed was also favourably genetically correlated with both the objectively measured and subjectively measured traits. The results suggest that selection for the subjectively assessed wool-classing traits alone may not lead to maximum genetic progress in productivity; however, an integrated system is possible that would allow breeders to breed towards specific markets based on objective and subjective traits. The genetic correlations suggest that using an integrated approach would not result in loss of any potential genetic gain in either group of traits. | Publication Type: | Journal Article | Source of Publication: | Wool Technology and Sheep Breeding, 50(3), p. 378-382 | Publisher: | Wool Research Organisation of New Zealand | Place of Publication: | New Zealand | ISSN: | 1832-8679 0043-7875 |
Fields of Research (FoR) 2008: | 070201 Animal Breeding | Socio-Economic Objective (SEO) 2008: | 830311 Sheep - Wool | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal | Publisher/associated links: | http://sheepjournal.une.edu.au/sheepjournal/vol50/iss3/paper27/ |
---|---|
Appears in Collections: | Animal Genetics and Breeding Unit (AGBU) Journal Article |
Files in This Item:
File | Description | Size | Format |
---|
Page view(s)
1,006
checked on Mar 7, 2023
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.