Non-additive genetic effects on weights and performance of a Brazilian Bos taurus x Bos indicus beef composite
The aim of the present study was to evaluate the heterosis effects on weaning weight at 205 days (WW, n = 146,464), yearling weight at 390 days (YW, n = 69,315) and weight gain from weaning to yearling (WG, n = 59,307) in composite beef cattle. The fixed models were: RM, which included contemporary...
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| Veröffentlicht in: | Genetics and molecular research 2008-01, Vol.7 (4), p.1156-1163 |
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| creator | Mourão, G.B Ferraz, J.B.S Eler, J.P Bueno, R.S Balieiro, J.C.C Mattos, E.C Figueiredo, L.G.G |
| description | The aim of the present study was to evaluate the heterosis effects on weaning weight at 205 days (WW, n = 146,464), yearling weight at 390 days (YW, n = 69,315) and weight gain from weaning to yearling (WG, n = 59,307) in composite beef cattle. The fixed models were: RM, which included contemporary groups, class of age of dam, outcrossing percentages for direct and maternal effects, and additive direct and maternal (AM) breed effects; R, RM model, minus AM breed effects, and H, RM model, minus additive breed effects. The estimates for W205 were in general positive (P < 0.01). The R and H models resulted in similar estimates, but they were very different from the ones estimated by the RM model. For W390, the R and H models resulted in general positive estimates (P < 0.05). For WG, the RM model resulted in general significant heterosis effects (P < 0.05). It can be concluded that the RM model seems to supply estimates of better quality (P < 0.01). |
| doi_str_mv | 10.4238/vol7-4gmr501 |
| format | Article |
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The fixed models were: RM, which included contemporary groups, class of age of dam, outcrossing percentages for direct and maternal effects, and additive direct and maternal (AM) breed effects; R, RM model, minus AM breed effects, and H, RM model, minus additive breed effects. The estimates for W205 were in general positive (P < 0.01). The R and H models resulted in similar estimates, but they were very different from the ones estimated by the RM model. For W390, the R and H models resulted in general positive estimates (P < 0.05). For WG, the RM model resulted in general significant heterosis effects (P < 0.05). It can be concluded that the RM model seems to supply estimates of better quality (P < 0.01).</description><identifier>ISSN: 1676-5680</identifier><identifier>EISSN: 1676-5680</identifier><identifier>DOI: 10.4238/vol7-4gmr501</identifier><identifier>PMID: 19048494</identifier><language>eng</language><publisher>Brazil</publisher><subject>Animals ; beef cattle ; beef quality ; Body Weight - genetics ; Bos indicus ; Bos taurus ; Cattle ; Crosses, Genetic ; heterosis ; Hybrid Vigor - genetics ; Hybridization, Genetic - genetics ; hybrids ; mathematical models ; Meat ; non-additive genetic effect ; outcrossing ; weight gain ; zebu</subject><ispartof>Genetics and molecular research, 2008-01, Vol.7 (4), p.1156-1163</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c382t-c53f89478e9a5c33ee0525d1d0e719de35b3790bb583d9e4d0d23269e023fa4b3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19048494$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mourão, G.B</creatorcontrib><creatorcontrib>Ferraz, J.B.S</creatorcontrib><creatorcontrib>Eler, J.P</creatorcontrib><creatorcontrib>Bueno, R.S</creatorcontrib><creatorcontrib>Balieiro, J.C.C</creatorcontrib><creatorcontrib>Mattos, E.C</creatorcontrib><creatorcontrib>Figueiredo, L.G.G</creatorcontrib><title>Non-additive genetic effects on weights and performance of a Brazilian Bos taurus x Bos indicus beef composite</title><title>Genetics and molecular research</title><addtitle>Genet Mol Res</addtitle><description>The aim of the present study was to evaluate the heterosis effects on weaning weight at 205 days (WW, n = 146,464), yearling weight at 390 days (YW, n = 69,315) and weight gain from weaning to yearling (WG, n = 59,307) in composite beef cattle. The fixed models were: RM, which included contemporary groups, class of age of dam, outcrossing percentages for direct and maternal effects, and additive direct and maternal (AM) breed effects; R, RM model, minus AM breed effects, and H, RM model, minus additive breed effects. The estimates for W205 were in general positive (P < 0.01). The R and H models resulted in similar estimates, but they were very different from the ones estimated by the RM model. For W390, the R and H models resulted in general positive estimates (P < 0.05). For WG, the RM model resulted in general significant heterosis effects (P < 0.05). 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| subjects | Animals beef cattle beef quality Body Weight - genetics Bos indicus Bos taurus Cattle Crosses, Genetic heterosis Hybrid Vigor - genetics Hybridization, Genetic - genetics hybrids mathematical models Meat non-additive genetic effect outcrossing weight gain zebu |
| title | Non-additive genetic effects on weights and performance of a Brazilian Bos taurus x Bos indicus beef composite |
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