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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
16/12/1998 |
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Data da última atualização: |
11/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACHECO, C. A. P.; RIBEIRO JUNIOR, J. I.; CRUZ, C. D. |
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Afiliação: |
EMBRAPA/CNPMS. |
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Título: |
Using the best linear predictor (BLP) in the selection between and among half-sib progenies of the CMS-39 maize population. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Brazilian Journal of Genetics, Ribeirão Preto, v. 20, n. 4, p. 683-690, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
Data of corn ear production (kg/ha) of 196 half-sib progenies (HSP) of the maize population CMS-39 obtained from experiments carried out in four environments were used to adapt and assess the BLP method (best linear predictor) in comparison with to the selection among and within half-sib progenies (SAWHSP). The 196 HSP of the CMS-39 population developed by the National Center for Maize and Sorghum Research (CNPMS-EMBRAPA) were related through their pedigree with the recombined progenies of the previous selection cycle. The two methodologies used for the selection of the twenty best half-sib progenies. BLP and SAWHSP, led to similar expected genetic grains. There was a tendency in the BLP methodology to select a greater number of related progenies because of the previous generation (pedigree) than the other method. This implies that greater care with the effictive size of the population must be taken with this method. The SAWHSP methodology was efficient in isolating tha aditive genetic variance component from the phenotypic component. The pedigree system, although unnecessary for the routine use of the SAWHSP methodology, allowed the prediction of an increase in the inbreeding of the population in the long term SAWHSP selection when recombination is simultaneous to creation of new progenies. |
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Palavras-Chave: |
Maize; Selection. |
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Thesagro: |
Melhoramento; Milho; Seleção; Zea Mays. |
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Thesaurus Nal: |
breeding. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/32717/1/Using-best.pdf
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Marc: |
LEADER 02005naa a2200229 a 4500
001 1480865
005 2018-06-11
008 1997 bl uuuu u00u1 u #d
100 1 $aPACHECO, C. A. P.
245 $aUsing the best linear predictor (BLP) in the selection between and among half-sib progenies of the CMS-39 maize population.$h[electronic resource]
260 $c1997
520 $aData of corn ear production (kg/ha) of 196 half-sib progenies (HSP) of the maize population CMS-39 obtained from experiments carried out in four environments were used to adapt and assess the BLP method (best linear predictor) in comparison with to the selection among and within half-sib progenies (SAWHSP). The 196 HSP of the CMS-39 population developed by the National Center for Maize and Sorghum Research (CNPMS-EMBRAPA) were related through their pedigree with the recombined progenies of the previous selection cycle. The two methodologies used for the selection of the twenty best half-sib progenies. BLP and SAWHSP, led to similar expected genetic grains. There was a tendency in the BLP methodology to select a greater number of related progenies because of the previous generation (pedigree) than the other method. This implies that greater care with the effictive size of the population must be taken with this method. The SAWHSP methodology was efficient in isolating tha aditive genetic variance component from the phenotypic component. The pedigree system, although unnecessary for the routine use of the SAWHSP methodology, allowed the prediction of an increase in the inbreeding of the population in the long term SAWHSP selection when recombination is simultaneous to creation of new progenies.
650 $abreeding
650 $aMelhoramento
650 $aMilho
650 $aSeleção
650 $aZea Mays
653 $aMaize
653 $aSelection
700 1 $aRIBEIRO JUNIOR, J. I.
700 1 $aCRUZ, C. D.
773 $tBrazilian Journal of Genetics, Ribeirão Preto$gv. 20, n. 4, p. 683-690, 1997.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
02/12/2021 |
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Data da última atualização: |
04/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BERTOGNA, K. F.; MOREIRA, P. S. A.; GOMES, F. J.; KACHIYAMA, F. B.; GROTH, A.; REZENDE, M. O.; MAGALHÃES, C. A. de S.; LOPES, L. B. |
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Afiliação: |
KÁSSILA FERNANDA BERTOGNA, UFMT, Sinop-MT; PAULO SÉRGIO ANDRADE MOREIRA, UFMT, Sinop-MT; FAGNER JÚNIOR GOMES, USP-ESALQ, Piracicaba-SP; FERNANDO BARBOSA KACHIYAMA, UFMT, Sinop-MT; ANDRESSA GROTH, UFMT, Sinop-MT; MARCELO OSTER REZENDE, UFMT, Sinop-MT; CIRO AUGUSTO DE SOUZA MAGALHAES, CPAMT; LUCIANO BASTOS LOPES, CPAMT. |
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Título: |
Parameters associated with sexual precocity of Nellore heifers in integrated systems. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Agroforestry Systems, v. 96, n. 4, p. 669-679, 2022. |
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DOI: |
https://doi.org/10.1007/s10457-021-00702-x |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated how integrated crop?livestock?forestry systems affected the expression of sexual traits in Nellore heifers. The serum concentration of insulin-like growth factor type-I (IGF-I), follicular diameter, rump fat thickness (RFT), and weight gain were assessed in 48 prepubertal Nellore heifers (14?16 months old, initial average live weight of 270 ± 36 kg). Calf birth weight was assessed after parturition. Heifers were distributed into four production systems following a completely randomized block design, with 12 animals in each treatment: open pasture (OP); two silvopastoral systems (SPSs?single rows or SPSt?triple rows), and crop-livestock system (CL). Thermal comfort was evaluated using the black globe, as well as humidity index (BGHI) and radiant thermal load (RTL). Animals in all treatments were exposed for long periods to heat stress; however, thermal indexes got lesser values in the SPS treatments. Heifers from the SPSt achieved the greatest serum concentration of IGF-I, but the follicular diameter did not differ among systems, as initially expected. The greatest weight gain and RFT standards were found in heifers of the CL system. Calves born from females of exclusive livestock (OP) showed the smallest weight at birth. Therefore, we suggested the adoption of the SPS and CL systems for livestock beef ranches as Nellore heifers reached better zootechnical and physiologic parameters associated with sexual precocity. |
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Palavras-Chave: |
Ilp; Integração lavoura-pecuária; Mato Grosso; Sinop-MT; Sistemas integrados. |
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Thesagro: |
Agrossilvicultura; Comportamento Sexual; Gado Nelore. |
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Thesaurus NAL: |
Animal growth; Cattle; Heat stress; Livestock; Nellore; Nutrition; Puberty. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02568naa a2200397 a 4500
001 2136995
005 2023-01-04
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10457-021-00702-x$2DOI
100 1 $aBERTOGNA, K. F.
245 $aParameters associated with sexual precocity of Nellore heifers in integrated systems.$h[electronic resource]
260 $c2022
520 $aThis study evaluated how integrated crop?livestock?forestry systems affected the expression of sexual traits in Nellore heifers. The serum concentration of insulin-like growth factor type-I (IGF-I), follicular diameter, rump fat thickness (RFT), and weight gain were assessed in 48 prepubertal Nellore heifers (14?16 months old, initial average live weight of 270 ± 36 kg). Calf birth weight was assessed after parturition. Heifers were distributed into four production systems following a completely randomized block design, with 12 animals in each treatment: open pasture (OP); two silvopastoral systems (SPSs?single rows or SPSt?triple rows), and crop-livestock system (CL). Thermal comfort was evaluated using the black globe, as well as humidity index (BGHI) and radiant thermal load (RTL). Animals in all treatments were exposed for long periods to heat stress; however, thermal indexes got lesser values in the SPS treatments. Heifers from the SPSt achieved the greatest serum concentration of IGF-I, but the follicular diameter did not differ among systems, as initially expected. The greatest weight gain and RFT standards were found in heifers of the CL system. Calves born from females of exclusive livestock (OP) showed the smallest weight at birth. Therefore, we suggested the adoption of the SPS and CL systems for livestock beef ranches as Nellore heifers reached better zootechnical and physiologic parameters associated with sexual precocity.
650 $aAnimal growth
650 $aCattle
650 $aHeat stress
650 $aLivestock
650 $aNellore
650 $aNutrition
650 $aPuberty
650 $aAgrossilvicultura
650 $aComportamento Sexual
650 $aGado Nelore
653 $aIlp
653 $aIntegração lavoura-pecuária
653 $aMato Grosso
653 $aSinop-MT
653 $aSistemas integrados
700 1 $aMOREIRA, P. S. A.
700 1 $aGOMES, F. J.
700 1 $aKACHIYAMA, F. B.
700 1 $aGROTH, A.
700 1 $aREZENDE, M. O.
700 1 $aMAGALHÃES, C. A. de S.
700 1 $aLOPES, L. B.
773 $tAgroforestry Systems$gv. 96, n. 4, p. 669-679, 2022.
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Embrapa Agrossilvipastoril (CPAMT) |
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