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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
10/12/2001 |
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Data da última atualização: |
30/03/2017 |
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Autoria: |
SERENO, J. R. B.; PELLEGRIN, A. O.; LARA, M. A. C.; ABREU, U. G. P. de; SERENO, F. T. P. S.; CHALITA, L. V. A. S. |
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Afiliação: |
Embrapa Pantanal (Corumba, MS); Agencia Espanola de Cooperacion Internacional (Cordoba, Espanha); Instituto de Zootecnia (Nova Odessa, SP); Universidad de Cordoba. Facultad de Veterinaria (Cordoba, Espanha). |
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Título: |
Estimacion del peso a la primera monta de novillas de las razas pantaneira, nelore y mestizas pantaneira x nelore en el Pantanal brasileno. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Archivos de Zootecnia, Cordoba, v.50, n.189-190, p.159-163, 2001. |
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Idioma: |
Espanhol |
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Conteúdo: |
The objective os this work was to estimate the live weight at the first mount in the Pantaneira (P), Nelore (N) and crossbreed Pantaneira x Nelore (PxN) heifers. A total 98 females used, has been 51,24 and 23 from P,N and PxN heifers, respectively. All of heifers were born and growth up in typical native pastures at Brazilian Pantanal. In addtion they were weighted at the start and the end of breeding season, occasion where takes place the pregnant diagnosis by rectal palpation. These heifers weighted in average 225+-33kg (min=167 and max=325 kg) at the start of the season breeding with age average of 3.3+-0.63 years. The statistical analysis not showed significant difference (p=0.3595) to live weight at mounting between breeds. The heifers that became pregnant showed the following weights: 233 kg (n=32; min.=185 and max.=295 kg), 213 kg (n=19; min.=175 and max.=285 kg) and 241 kg (n=18; min.=180 and max.=320 kg), respectively, for N, P and PxN heifers. These results indicated that the live weight at the first mount was about 220 kg produced, exclusivelly, in native pastures from Brazilian Pantanal. |
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Palavras-Chave: |
Animal genetic resource; Bovine; Conservation. |
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Thesagro: |
Animal; Bovino; Conservação; Recurso Genético; Reprodução. |
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Thesaurus Nal: |
Pantanal; reproduction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02004naa a2200301 a 4500
001 1809670
005 2017-03-30
008 2001 bl --- 0-- u #d
100 1 $aSERENO, J. R. B.
245 $aEstimacion del peso a la primera monta de novillas de las razas pantaneira, nelore y mestizas pantaneira x nelore en el Pantanal brasileno.
260 $c2001
520 $aThe objective os this work was to estimate the live weight at the first mount in the Pantaneira (P), Nelore (N) and crossbreed Pantaneira x Nelore (PxN) heifers. A total 98 females used, has been 51,24 and 23 from P,N and PxN heifers, respectively. All of heifers were born and growth up in typical native pastures at Brazilian Pantanal. In addtion they were weighted at the start and the end of breeding season, occasion where takes place the pregnant diagnosis by rectal palpation. These heifers weighted in average 225+-33kg (min=167 and max=325 kg) at the start of the season breeding with age average of 3.3+-0.63 years. The statistical analysis not showed significant difference (p=0.3595) to live weight at mounting between breeds. The heifers that became pregnant showed the following weights: 233 kg (n=32; min.=185 and max.=295 kg), 213 kg (n=19; min.=175 and max.=285 kg) and 241 kg (n=18; min.=180 and max.=320 kg), respectively, for N, P and PxN heifers. These results indicated that the live weight at the first mount was about 220 kg produced, exclusivelly, in native pastures from Brazilian Pantanal.
650 $aPantanal
650 $areproduction
650 $aAnimal
650 $aBovino
650 $aConservação
650 $aRecurso Genético
650 $aReprodução
653 $aAnimal genetic resource
653 $aBovine
653 $aConservation
700 1 $aPELLEGRIN, A. O.
700 1 $aLARA, M. A. C.
700 1 $aABREU, U. G. P. de
700 1 $aSERENO, F. T. P. S.
700 1 $aCHALITA, L. V. A. S.
773 $tArchivos de Zootecnia, Cordoba$gv.50, n.189-190, p.159-163, 2001.
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Registro original: |
Embrapa Pantanal (CPAP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
15/12/2017 |
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Data da última atualização: |
15/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MACNEIL, M. D.; CARDOSO, F. F.; HAY, E. |
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Afiliação: |
M. D. MacNeil; FERNANDO FLORES CARDOSO, CPPSUL; E. Hay. |
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Título: |
Genotype by environment interaction effects in genetic evaluation of preweaning gain for Line 1 Hereford cattle from Miles City, Montana. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 95, n. 9, p. 3833-3838, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
It has long been recognized that genotype × environment interaction potentially influences genetic evaluation of beef cattle. However, this recognition has largely been ignored in systems for national cattle evaluation. The objective of this investigation was to determine if direct and maternal genetic effects on preweaning gain would be reranked depending on an environmental gradient as determined by year effects. Data used were from the 76-yr selection experiment with the Line 1 Hereford cattle raised at Miles City, MT. The data comprised recorded phenotypes from 7,566 animals and an additional 1,862 ancestral records included in the pedigree. The presence of genotype × environment interaction was examined using reaction norms wherein year effects on preweaning gain were hypothesized to linearly influence the EBV. Estimates of heritability for direct and maternal effects, given the average environment, were 10 ± 2 and 26 ± 3%, respectively. In an environment that is characterized by the 5th (95th) percentile of the distribution of year effects, the corresponding estimates of heritability were 18 ± 3 (22 ± 3%) and 30 ± 3% (30 ± 3%), respectively. Rank correlations of direct and maternal EBV appropriate to the 5th and 95th percentiles of the year effects were 0.67 and 0.92, respectively. In the average environment, the genetic trends were 255 ± 1 g/yr for direct effects and 557 ± 3 g/yr for maternal effects. In the fifth percentile environment, the corresponding estimates of genetic trend were 271 ± 1 and 540 ± 3 g/yr, respectively, and in the 95th percentile environment, they were 236 ± 1 and 578 ± 3 g/yr, respectively. Linear genetic trends in environmental sensitivity were observed for both the direct (?8.06 × 10?? ± 0.49 × 10??) and maternal (8.72 × 10?? ± 0.43 × 10??) effects. Therefore, changing systems of national cattle evaluation to more fully account for potential genotype × environment interaction would improve the assessment of breeding stock, particularly for direct effects. Estimates of environmental sensitivity parameters could also facilitate identification of genetic limitations to production. MenosIt has long been recognized that genotype × environment interaction potentially influences genetic evaluation of beef cattle. However, this recognition has largely been ignored in systems for national cattle evaluation. The objective of this investigation was to determine if direct and maternal genetic effects on preweaning gain would be reranked depending on an environmental gradient as determined by year effects. Data used were from the 76-yr selection experiment with the Line 1 Hereford cattle raised at Miles City, MT. The data comprised recorded phenotypes from 7,566 animals and an additional 1,862 ancestral records included in the pedigree. The presence of genotype × environment interaction was examined using reaction norms wherein year effects on preweaning gain were hypothesized to linearly influence the EBV. Estimates of heritability for direct and maternal effects, given the average environment, were 10 ± 2 and 26 ± 3%, respectively. In an environment that is characterized by the 5th (95th) percentile of the distribution of year effects, the corresponding estimates of heritability were 18 ± 3 (22 ± 3%) and 30 ± 3% (30 ± 3%), respectively. Rank correlations of direct and maternal EBV appropriate to the 5th and 95th percentiles of the year effects were 0.67 and 0.92, respectively. In the average environment, the genetic trends were 255 ± 1 g/yr for direct effects and 557 ± 3 g/yr for maternal effects. In the fifth percentile environment, the corresponding estimates of... Mostrar Tudo |
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Thesagro: |
Gado de corte. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02697naa a2200157 a 4500
001 2082708
005 2017-12-15
008 2017 bl uuuu u00u1 u #d
100 1 $aMACNEIL, M. D.
245 $aGenotype by environment interaction effects in genetic evaluation of preweaning gain for Line 1 Hereford cattle from Miles City, Montana.$h[electronic resource]
260 $c2017
520 $aIt has long been recognized that genotype × environment interaction potentially influences genetic evaluation of beef cattle. However, this recognition has largely been ignored in systems for national cattle evaluation. The objective of this investigation was to determine if direct and maternal genetic effects on preweaning gain would be reranked depending on an environmental gradient as determined by year effects. Data used were from the 76-yr selection experiment with the Line 1 Hereford cattle raised at Miles City, MT. The data comprised recorded phenotypes from 7,566 animals and an additional 1,862 ancestral records included in the pedigree. The presence of genotype × environment interaction was examined using reaction norms wherein year effects on preweaning gain were hypothesized to linearly influence the EBV. Estimates of heritability for direct and maternal effects, given the average environment, were 10 ± 2 and 26 ± 3%, respectively. In an environment that is characterized by the 5th (95th) percentile of the distribution of year effects, the corresponding estimates of heritability were 18 ± 3 (22 ± 3%) and 30 ± 3% (30 ± 3%), respectively. Rank correlations of direct and maternal EBV appropriate to the 5th and 95th percentiles of the year effects were 0.67 and 0.92, respectively. In the average environment, the genetic trends were 255 ± 1 g/yr for direct effects and 557 ± 3 g/yr for maternal effects. In the fifth percentile environment, the corresponding estimates of genetic trend were 271 ± 1 and 540 ± 3 g/yr, respectively, and in the 95th percentile environment, they were 236 ± 1 and 578 ± 3 g/yr, respectively. Linear genetic trends in environmental sensitivity were observed for both the direct (?8.06 × 10?? ± 0.49 × 10??) and maternal (8.72 × 10?? ± 0.43 × 10??) effects. Therefore, changing systems of national cattle evaluation to more fully account for potential genotype × environment interaction would improve the assessment of breeding stock, particularly for direct effects. Estimates of environmental sensitivity parameters could also facilitate identification of genetic limitations to production.
650 $aGado de corte
700 1 $aCARDOSO, F. F.
700 1 $aHAY, E.
773 $tJournal of Animal Science$gv. 95, n. 9, p. 3833-3838, 2017.
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Embrapa Pecuária Sul (CPPSUL) |
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