The impact of DNA parentage verification on breeding value estimation and sire ranking in South African Angora goats

Show simple item record Garritsen, C. Van Marle-Koster, Este Snyman, M.A. Visser, Carina 2015-05-20T11:43:59Z 2015-05-20T11:43:59Z 2015-03
dc.description.abstract Pedigree integrity plays a crucial role in the achievement of genetic progress in livestock selection programmes. DNA marker-based parentage testing has become a useful tool for amending inaccuracies in on-farm pedigree records. In the current study, the extent of inaccurate and incomplete pedigree records was quantified in 381 South African Angora goats using a 12 microsatellite markers. Eight half-sib families with a total of 317 Angora kids,40 kids with unknown sires and an additional 16 putative sires were included in the study.14.3% of the on-farm pedigrees were amended, including incorrect (according to the DNA verification) or incomplete records. Estimated breeding values (EBV) for fleece traits (fibre diameter and fleece weight) as well as body weights (birth weight and weaning weight)were calculated for 21 sires using ASREML, firstly for the breeder’s recorded pedigree and secondly for the DNA-verified pedigree. An overall greater effect was observed in bodyweight traits than in fleece weight traits with regard to sire EBVs and the ranking there of. The significant change realised in sire ranking after DNA marker-based pedigree verification emphasises the importance of pedigree integrity in maximising selection accuracy for the production of the highest quality mohair clip in the South African Angora goat industry. en_ZA
dc.description.librarian hb2015 en_ZA
dc.description.sponsorship The International Foun-dation for Science, Stockholm, Sweden through a researchgrant (B/4998-1). This work is based on the research sup-ported in part by a number of grants from the NationalResearch Foundation of South Africa (UID: 78566 (NRF RISPgrant for the ABI3500)). en_ZA
dc.description.uri en_ZA
dc.identifier.citation Garritsen, C, Van Marle-Koster, E, Snyman, MA & Visser, C 2015, 'The impact of DNA parentage verification on breeding value estimation and sire ranking in South African Angora goats', Small Ruminant Research, vol. 124, pp. 30-37. en_ZA
dc.identifier.issn 0921-4488 (print)
dc.identifier.issn 1879-0941 (online)
dc.identifier.other 10.1016/j.smallrumres.2015.01.008
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2015 Elsevier B.V. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Small Ruminant Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Small Ruminant Research, vol. 124, pp. 30-37, 2015. doi : 10.1016/j.smallrumres.2015.01.008 en_ZA
dc.subject Body weight en_ZA
dc.subject Fleece traits en_ZA
dc.subject Microsatellite markers en_ZA
dc.subject Pedigree integrity en_ZA
dc.subject Sire selection en_ZA
dc.title The impact of DNA parentage verification on breeding value estimation and sire ranking in South African Angora goats en_ZA
dc.type Postprint Article en_ZA

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