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https://hdl.handle.net/1959.11/4547
Title: | Preliminary analysis of sire effects on resistance to gastrointestinal nematode infection in Angora and Cashmere goats | Contributor(s): | Olayemi, Muyiwa (author); Walkden-Brown, Steve William (author) ; Van Der Werf, Julius Herman (author) ; Le Jambre, Leo Frederick (author) | Publication Date: | 2001 | Handle Link: | https://hdl.handle.net/1959.11/4547 | Abstract: | Genetic resistance to gastro-intestinal nematode infection (GIN) is being investigated on two properties in northern NSW, Australia. Results from natural infections during the first year of a 5-year investigation are presented. Data consists of faecal egg counts (FEC) after natural infection (predominantly with 'Haemonchus contortus') of 222 and 220 progeny of 6 Angora and 9 Cashmere bucks, respectively. FEC^0.33 measured at 5 (FEC5) but not 3 (FEC3) months of age differed significantly among sires in both breeds. Oral vaccination of kids at 1 and 2 months of age with irradiated L3 larvae of 'Trichostrogylus colubriformis' did not influence FEC3 or FEC5. Heritability estimates for FEC5^0.33 were 0.25 ± 0.21 and 0.23 ± 0.19 for Angora and Cashmere goats respectively. The phenotypic correlation between FEC5 and weight at 5 months was -0.21 (P<0.05) in Angora goats and non-significant in Cashmere goats. These preliminary findings are encouraging and broadly consistent with other studies in sheep and some other breeds of goat. | Publication Type: | Conference Publication | Conference Details: | AAABG 2001: 14th Conference of the Association for the Advancement of Animal Breeding and Genetics, Queenstown, New Zealand, 30th July - 2nd August, 2001 | Source of Publication: | Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.14, p. 203-206 | Publisher: | Association for the Advancement of Animal Breeding and Genetics (AAABG) | Place of Publication: | Armidale, Australia | ISSN: | 1328-3227 | Fields of Research (FoR) 2008: | 070708 Veterinary Parasitology | Socio-Economic Objective (SEO) 2008: | 960403 Control of Animal Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments | Peer Reviewed: | Yes | HERDC Category Description: | E1 Refereed Scholarly Conference Publication | Publisher/associated links: | http://www.aaabg.org/livestocklibrary/2001/ab01048.pdf http://trove.nla.gov.au/work/30056151 |
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Appears in Collections: | Conference Publication |
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