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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
09/08/2006 |
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Data da última atualização: |
03/12/2015 |
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Autoria: |
PACHECO, C. A. P.; GAMA, E. E. G. e; PARENTONI, S. N.; SANTOS, M. X. dos; GUIMARAES, P. E. de O. |
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Afiliação: |
CLESO ANTONIO PATTO PACHECO, CNPMS; SIDNEY NETTO PARENTONI, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS. |
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Título: |
Avanços no pocesso seletivo da variedade de milho pipoca BRS Angela. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 4, n. 3, p. 436-444, 2005. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi avaliar o novo ciclo de seleção e verificar a possibilidade de substituição do ciclo VI, que está no mercado. Para isso, os dois ciclos foram avaliados ao lado das testemunhas comerciais, IAC 112 e Zélia, em blocos casualizados, com oito repetições, na safra de 2002/2003, em Sete Lagoas, MG. Foram analisadas 15 características agronômicas comuns ao melhoramento de milho, incluindo o índice de capacidade de expansão (ICE) e o rendimento de peneiras, importantes para o milho pipoca. No ciclo VIb, as plantas foram mais precoces, de menor porte e com espigas mais baixas, mais tolerantes ao acamamento e ao quebramento. Além disso, houve um incremento de 4,40% na produtividade e de 4,30% no ICE. A maior mudança no ciclo VIb foi no rendimento de peneiras, com um sensível aumento na proporção dos grãos com diâmetro maior que 6mm e diminuição dos grãos com diâmetro menor que 5mm. Um defeito do ciclo VIb foi o aumento na porcentagem de espigas doentes, que, mesmo assim, apresentou desempenho semelhante ao híbrido simples IAC 112, e superior ao híbrido triplo Zélia. Também por ter sido considerado fenotipicamente mais bonito, a substituição do ciclo VI pelo ciclo VIb foi considerada vantajosa. |
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Palavras-Chave: |
Cultivar. |
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Thesagro: |
Melhoramento; Milho Pipoca; Seleção. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/30463/1/Avancos-processo.pdf
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Marc: |
LEADER 01907naa a2200217 a 4500
001 1489536
005 2015-12-03
008 2005 bl uuuu u00u1 u #d
100 1 $aPACHECO, C. A. P.
245 $aAvanços no pocesso seletivo da variedade de milho pipoca BRS Angela.$h[electronic resource]
260 $c2005
520 $aO objetivo deste trabalho foi avaliar o novo ciclo de seleção e verificar a possibilidade de substituição do ciclo VI, que está no mercado. Para isso, os dois ciclos foram avaliados ao lado das testemunhas comerciais, IAC 112 e Zélia, em blocos casualizados, com oito repetições, na safra de 2002/2003, em Sete Lagoas, MG. Foram analisadas 15 características agronômicas comuns ao melhoramento de milho, incluindo o índice de capacidade de expansão (ICE) e o rendimento de peneiras, importantes para o milho pipoca. No ciclo VIb, as plantas foram mais precoces, de menor porte e com espigas mais baixas, mais tolerantes ao acamamento e ao quebramento. Além disso, houve um incremento de 4,40% na produtividade e de 4,30% no ICE. A maior mudança no ciclo VIb foi no rendimento de peneiras, com um sensível aumento na proporção dos grãos com diâmetro maior que 6mm e diminuição dos grãos com diâmetro menor que 5mm. Um defeito do ciclo VIb foi o aumento na porcentagem de espigas doentes, que, mesmo assim, apresentou desempenho semelhante ao híbrido simples IAC 112, e superior ao híbrido triplo Zélia. Também por ter sido considerado fenotipicamente mais bonito, a substituição do ciclo VI pelo ciclo VIb foi considerada vantajosa.
650 $aMelhoramento
650 $aMilho Pipoca
650 $aSeleção
653 $aCultivar
700 1 $aGAMA, E. E. G. e
700 1 $aPARENTONI, S. N.
700 1 $aSANTOS, M. X. dos
700 1 $aGUIMARAES, P. E. de O.
773 $tRevista Brasileira de Milho e Sorgo, Sete Lagoas$gv. 4, n. 3, p. 436-444, 2005.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Pecuária Sudeste. |
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Data corrente: |
03/01/2024 |
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Data da última atualização: |
08/02/2024 |
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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: |
BRCKO, C. C.; SILVA, J. A. R. DA; GARCIA, A. R.; SILVA, A. G. M. E; MARTORANO, L. G.; VILELA, R. A.; NAHÚM, B. DE S.; BARBOSA, A. V. C.; SILVA, W. C. DA; RODRIGUES, T. C. G. DE C.; SILVA, E. B. R. DA; LOURENÇO JÚNIOR, J. DE B. |
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Afiliação: |
CAROLINA CARVALHO BRCKO, Federal University of Pará; JAMILE ANDREA RODRIGUES DA SILVA, Federal Rural University of the Amazônia; ALEXANDRE ROSSETTO GARCIA, CPPSE; ANDRÉ GUIMARÃES MACIEL E SILVA, Federal University of Pará; LUCIETA GUERREIRO MARTORANO, CPATU; REÍSSA ALVES VILELA, Federal University of Pará; BENJAMIM DE SOUZA NAHÚM; ANTÔNIO VINÍCIUS CORRÊA BARBOSA, Federal Rural University of the Amazônia; WELLIGTON CONCEIÇÃO DA SILVA, Federal University of Pará; THOMAZ CYRO GUIMARÃES DE CARVALHO RODRIGUES, Federal University of Pará; ÉDER BRUNO REBELO DA SILVA, Federal University of Pará; JOSÉ DE BRITO LOURENÇO-JÚNIOR, Federal University of Pará. |
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Título: |
Effects of climatic conditions and supplementation with palm cake on the thermoregulation of crossbred buffaloes raised in a rotational grazing system and with natural shade in humid tropical regions. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Animals, v. 14, n. 53, 2024. |
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Páginas: |
13 p. |
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DOI: |
10.3390/ani14010053 |
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Idioma: |
Inglês |
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Conteúdo: |
In ruminants, diet composition has a positive correlation with heat production, which can influence thermoregulation, energy expenditure and, consequently, animal performance. The objective of this work was to evaluate the effects of climatic conditions and supplementation based on palm kernel cake, on the thermoregulation of crossbred buffaloes in the eastern Amazon. The research was carried out at Embrapa Amazônia Oriental (01°26′ S and 48°24′ W), Belém, Pará, and lasted 12 months (representing the entire year). Twenty-four buffaloes, females, with initial age and an average weight of 54 ± 7 months and 503.1 ± 23 kg, respectively, non-pregnant, non-lactating and clinically healthy were used, divided into four treatments based on the supplementation content of the palm cake (%DM) in relation to their body weight (%): 0, 0.25, 0.50 and 1.0. The animals were kept in paddocks with Brachiaria brizantha (cv. Marandu), in a rotating system, with water to drink and mineral salt ad libitum. Equipment was installed to record environmental data (temperature and relative humidity, dew point temperature, wet bulb and black globe) and physiological data: rectal temperature (RT); respiratory rate (RR); and body surface temperature (BST), recorded twice a day, always in the morning (6:00 a.m. to 7:00 a.m.) and afternoon (12:00 p.m. to 1:00 p.m.) shifts, and were used to calculate the Globe Temperature and Humidity Index (GTHI). Supplementation did not influence the physiological variables of thermoregulation (p > 0.05). However, there were differences in the GTHI between the shifts, with higher means in the afternoon shift, especially in the less rainy period of the year, where the GTHI reached 92.06 ± 2.74 (p < 0.05). In all periods of the year, the mean values of RT, RR and BST were higher in the afternoon shift (p > 0.05). The respiratory rate (RR) is associated with the annual seasonality of the thermal waters, with higher averages in the afternoons of the rainy season. The positive correlation for rectal temperature, respiratory rate and body surface temperature indicated that buffaloes respond to thermal elevations in the atmosphere (afternoon period) and, consequently, reflect on the GTHI. Supplementation does not influence thermoregulation; the changes observed occurred in response to the region’s thermal and rainfall conditions (mainly in the afternoon shift), with higher GTHI values. MenosIn ruminants, diet composition has a positive correlation with heat production, which can influence thermoregulation, energy expenditure and, consequently, animal performance. The objective of this work was to evaluate the effects of climatic conditions and supplementation based on palm kernel cake, on the thermoregulation of crossbred buffaloes in the eastern Amazon. The research was carried out at Embrapa Amazônia Oriental (01°26′ S and 48°24′ W), Belém, Pará, and lasted 12 months (representing the entire year). Twenty-four buffaloes, females, with initial age and an average weight of 54 ± 7 months and 503.1 ± 23 kg, respectively, non-pregnant, non-lactating and clinically healthy were used, divided into four treatments based on the supplementation content of the palm cake (%DM) in relation to their body weight (%): 0, 0.25, 0.50 and 1.0. The animals were kept in paddocks with Brachiaria brizantha (cv. Marandu), in a rotating system, with water to drink and mineral salt ad libitum. Equipment was installed to record environmental data (temperature and relative humidity, dew point temperature, wet bulb and black globe) and physiological data: rectal temperature (RT); respiratory rate (RR); and body surface temperature (BST), recorded twice a day, always in the morning (6:00 a.m. to 7:00 a.m.) and afternoon (12:00 p.m. to 1:00 p.m.) shifts, and were used to calculate the Globe Temperature and Humidity Index (GTHI). Supplementation did not influence the physiological variables... Mostrar Tudo |
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Palavras-Chave: |
Animal bioclimatology; Co-product; Equatorial climate; Supplement. |
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Thesaurus NAL: |
Heat stress; Ruminants; Thermoregulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160412/1/EffectsClimaticConditions.pdf
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Marc: |
LEADER 03575naa a2200361 a 4500
001 2160412
005 2024-02-08
008 2024 bl uuuu u00u1 u #d
024 7 $a10.3390/ani14010053$2DOI
100 1 $aBRCKO, C. C.
245 $aEffects of climatic conditions and supplementation with palm cake on the thermoregulation of crossbred buffaloes raised in a rotational grazing system and with natural shade in humid tropical regions.$h[electronic resource]
260 $c2024
300 $a13 p.
520 $aIn ruminants, diet composition has a positive correlation with heat production, which can influence thermoregulation, energy expenditure and, consequently, animal performance. The objective of this work was to evaluate the effects of climatic conditions and supplementation based on palm kernel cake, on the thermoregulation of crossbred buffaloes in the eastern Amazon. The research was carried out at Embrapa Amazônia Oriental (01°26′ S and 48°24′ W), Belém, Pará, and lasted 12 months (representing the entire year). Twenty-four buffaloes, females, with initial age and an average weight of 54 ± 7 months and 503.1 ± 23 kg, respectively, non-pregnant, non-lactating and clinically healthy were used, divided into four treatments based on the supplementation content of the palm cake (%DM) in relation to their body weight (%): 0, 0.25, 0.50 and 1.0. The animals were kept in paddocks with Brachiaria brizantha (cv. Marandu), in a rotating system, with water to drink and mineral salt ad libitum. Equipment was installed to record environmental data (temperature and relative humidity, dew point temperature, wet bulb and black globe) and physiological data: rectal temperature (RT); respiratory rate (RR); and body surface temperature (BST), recorded twice a day, always in the morning (6:00 a.m. to 7:00 a.m.) and afternoon (12:00 p.m. to 1:00 p.m.) shifts, and were used to calculate the Globe Temperature and Humidity Index (GTHI). Supplementation did not influence the physiological variables of thermoregulation (p > 0.05). However, there were differences in the GTHI between the shifts, with higher means in the afternoon shift, especially in the less rainy period of the year, where the GTHI reached 92.06 ± 2.74 (p < 0.05). In all periods of the year, the mean values of RT, RR and BST were higher in the afternoon shift (p > 0.05). The respiratory rate (RR) is associated with the annual seasonality of the thermal waters, with higher averages in the afternoons of the rainy season. The positive correlation for rectal temperature, respiratory rate and body surface temperature indicated that buffaloes respond to thermal elevations in the atmosphere (afternoon period) and, consequently, reflect on the GTHI. Supplementation does not influence thermoregulation; the changes observed occurred in response to the region’s thermal and rainfall conditions (mainly in the afternoon shift), with higher GTHI values.
650 $aHeat stress
650 $aRuminants
650 $aThermoregulation
653 $aAnimal bioclimatology
653 $aCo-product
653 $aEquatorial climate
653 $aSupplement
700 1 $aSILVA, J. A. R. DA
700 1 $aGARCIA, A. R.
700 1 $aSILVA, A. G. M. E
700 1 $aMARTORANO, L. G.
700 1 $aVILELA, R. A.
700 1 $aNAHÚM, B. DE S.
700 1 $aBARBOSA, A. V. C.
700 1 $aSILVA, W. C. DA
700 1 $aRODRIGUES, T. C. G. DE C.
700 1 $aSILVA, E. B. R. DA
700 1 $aLOURENÇO JÚNIOR, J. DE B.
773 $tAnimals$gv. 14, n. 53, 2024.
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Embrapa Pecuária Sudeste (CPPSE) |
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