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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
16/11/2017 |
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Data da última atualização: |
15/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PANTOJA, M. H. de A.; ESTEVES, S. N.; JACINTO, M. A. C.; PEZZOPANE, J. R. M.; PAZ, C. C. P. de; SILVA, J. A. R. da; LOURENÇO JUNIOR, J. de B.; BRANDAO, F. Z.; MOURA, A. B. B.; ROMANELLO, N.; BOTTA, D.; GARCIA, A. R. |
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Afiliação: |
Messy Hannear de Andrade Pantoja, UFPA; SERGIO NOVITA ESTEVES, CPPSE; MANUEL ANTONIO CHAGAS JACINTO, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; Cláudia Cristina Paro de Paz, Instituto de Zootecnia; Jamile Andréa Rodrigues da Silva, UFRA; José de Brito Lourenço Junior, UFPA; Felipe Zandonadi Brandão, UFF; Ana Beatriz Bossois Moura, UFF; Narian Romanello, UFPA; Daniela Botta, UFPA; ALEXANDRE ROSSETTO GARCIA, CPPSE. |
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Título: |
Thermoregulation of male sheep of indigenous or exotic breeds in a tropical environment. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Thermal Biology, v. 69, p. 302-310, 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.jtherbio.2017.09.002 |
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Idioma: |
Inglês |
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Conteúdo: |
Climate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Inês) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Inês (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TXshowed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (P < 0.05). The body surface temperatures were affected by the coat characteristics and wool length. Hematological parameters varied in the seasons with the highest thermal conditions (P < 0.05). The MN showed larger sweat glands, while the area occupied by the sweat glands was higher in the SI. The DO showed higher hair density in the summer and winter (P < 0.05). The results indicated that the MN, SI and DO breeds overcome the thermal challenge more easily throughout the seasons due to specific adaptive morphological and physiological characteristics. MenosClimate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Inês) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Inês (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TXshowed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (... Mostrar Tudo |
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Palavras-Chave: |
ILPF; Infrared thermography. |
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Thesaurus Nal: |
animal welfare; heat stress. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03010naa a2200313 a 4500
001 2079902
005 2023-12-15
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.jtherbio.2017.09.002$2DOI
100 1 $aPANTOJA, M. H. de A.
245 $aThermoregulation of male sheep of indigenous or exotic breeds in a tropical environment.$h[electronic resource]
260 $c2017
520 $aClimate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Inês) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Inês (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TXshowed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (P < 0.05). The body surface temperatures were affected by the coat characteristics and wool length. Hematological parameters varied in the seasons with the highest thermal conditions (P < 0.05). The MN showed larger sweat glands, while the area occupied by the sweat glands was higher in the SI. The DO showed higher hair density in the summer and winter (P < 0.05). The results indicated that the MN, SI and DO breeds overcome the thermal challenge more easily throughout the seasons due to specific adaptive morphological and physiological characteristics.
650 $aanimal welfare
650 $aheat stress
653 $aILPF
653 $aInfrared thermography
700 1 $aESTEVES, S. N.
700 1 $aJACINTO, M. A. C.
700 1 $aPEZZOPANE, J. R. M.
700 1 $aPAZ, C. C. P. de
700 1 $aSILVA, J. A. R. da
700 1 $aLOURENÇO JUNIOR, J. de B.
700 1 $aBRANDAO, F. Z.
700 1 $aMOURA, A. B. B.
700 1 $aROMANELLO, N.
700 1 $aBOTTA, D.
700 1 $aGARCIA, A. R.
773 $tJournal of Thermal Biology$gv. 69, p. 302-310, 2017.
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Embrapa Pecuária Sudeste (CPPSE) |
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Tipo/Formato |
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Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/10/2004 |
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Data da última atualização: |
28/10/2009 |
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Autoria: |
SHARMA, R. D.; MOREIRA, W. A.; ALVES, R. T. |
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Título: |
Eficiência de endotoxinas de Bacillus spp. no controle de heterodera glycines ichinohe na soja. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2003. |
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Páginas: |
15 p. |
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Série: |
(Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 78). |
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Idioma: |
Português |
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Conteúdo: |
RESUMO: Avaliou-se a eficiência de endotoxinas de Bacillus sphaericus (Bs 2362), B. thuringiensis var. Israelensis (Bti-H-14) e B. thuringiensis var. Kurstaki (Btk-Hd-1) no controle de nematóide de cisto Heterodera glycines, na soja cv. Cristalina, em casa de vegetação. Cinco doses (0, 250, 500, 1000, e 1500 mg) de cada toxina, com 108 esporos por grama, foram comparadas com 150 mg de aldicarb em um experimento com cinco repetições. Os produtos foram incorporados a 2 cm de profundidade e o solo irrigado com 100 mL de água destilada. Uma testemunha, com solo auto-clavado, foi incluído, para comparação do crescimento das plantas. Dez dias depois da aplicação de endotoxinas e aldicarb, uma plântula de soja, depois da emergência, foi transplantada em cada vaso contendo 1 kg de solo. Passados oitenta e três dias, avaliou-se peso de grãos/planta para diferentes doses de toxinas. Os tratamentos com endotoxina Btk-HD-1 na dosagem de 1500 mg/kg de solo e solo autoclavado diferiram significativamente (P<0.05) da dose zero. Os pesos dos grãos nos tratamentos com a endotoxina Btk-HD-1 dosagem de 1500 mg/kg de solo e solo autoclavado foram respectivamente 61 e 85 % maiores. Nenhuma das endotoxinas usadas neste estudo reduziu significativamente (P<0,05) a população final de nematóides em relação o controle. ABSTRACT: In a greenhouse pot experiment, efficiency of endotoxins obtained from pure cultures of Bacillus sphaericus (Bs 2362), B. thuringiensis var. israelensis (Bti-H-14) and B. thuringiensis var. kurstaki (Btk-Hd-1) was evaluated against soybean cyst nematode, Heterodera glycines on soybean cv. Cristalina. Five doses (0, 250, 500, 1000 and 1500 mg) of each toxin with 1.108 spores per gram and 150 mg aldicarb were incorporated in upper 2-cm soil layer followed by application of 100 mL distilled water/kg of soil. Autoclaved soil was used as control for comparing plant growth with treatments. The experimental design was a completely randomized, with five replicates. Ten days after the application of endotoxins, a three-day after emergence soybean seedling was transplanted in each pot. Eighty-three days later, the increase in grain weight/plant and final populations of soybean cyst nematodes were evaluated. In general, grain production was very low. Grain weights for treatments with endotoxin Btk-HD-1 dose 1500 mg/Kg of soil and autoclaved soil differed significantly (P<0.05) from the control, yielding respectively 61% and 85 % higher than the control. None of the endotoxins used in this study could significantly (P<0.05) reduce the final nematode populations in relation to the untreated control (autoclaved soil). MenosRESUMO: Avaliou-se a eficiência de endotoxinas de Bacillus sphaericus (Bs 2362), B. thuringiensis var. Israelensis (Bti-H-14) e B. thuringiensis var. Kurstaki (Btk-Hd-1) no controle de nematóide de cisto Heterodera glycines, na soja cv. Cristalina, em casa de vegetação. Cinco doses (0, 250, 500, 1000, e 1500 mg) de cada toxina, com 108 esporos por grama, foram comparadas com 150 mg de aldicarb em um experimento com cinco repetições. Os produtos foram incorporados a 2 cm de profundidade e o solo irrigado com 100 mL de água destilada. Uma testemunha, com solo auto-clavado, foi incluído, para comparação do crescimento das plantas. Dez dias depois da aplicação de endotoxinas e aldicarb, uma plântula de soja, depois da emergência, foi transplantada em cada vaso contendo 1 kg de solo. Passados oitenta e três dias, avaliou-se peso de grãos/planta para diferentes doses de toxinas. Os tratamentos com endotoxina Btk-HD-1 na dosagem de 1500 mg/kg de solo e solo autoclavado diferiram significativamente (P<0.05) da dose zero. Os pesos dos grãos nos tratamentos com a endotoxina Btk-HD-1 dosagem de 1500 mg/kg de solo e solo autoclavado foram respectivamente 61 e 85 % maiores. Nenhuma das endotoxinas usadas neste estudo reduziu significativamente (P<0,05) a população final de nematóides em relação o controle. ABSTRACT: In a greenhouse pot experiment, efficiency of endotoxins obtained from pure cultures of Bacillus sphaericus (Bs 2362), B. thuringiensis var. israelensis (Bti-H-14) and B. thu... Mostrar Tudo |
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Palavras-Chave: |
Bacterial endotoxins; Biocontrol; Israelensis; Kurstaki; Nematóide do cisto; Nematóide-do-cisto; Nematóide-do-cisto da soja; Soybean cyst nematode; thuringiensis var. |
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Thesagro: |
Bactéria; Cisto; Controle Biológico; Heterodera Glycines; Nematóide; Soja. |
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Thesaurus NAL: |
Bacillus sphaericus; biological control; Nematoda; soybeans. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/24969/1/bolpd_78.pdf
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Marc: |
LEADER 03772nam a2200385 a 4500
001 1567955
005 2009-10-28
008 2003 bl uuuu u0uu1 u #d
100 1 $aSHARMA, R. D.
245 $aEficiência de endotoxinas de Bacillus spp. no controle de heterodera glycines ichinohe na soja.
260 $aPlanaltina, DF: Embrapa Cerrados$c2003
300 $a15 p.
490 $a(Embrapa Cerrados. Boletim de Pesquisa e Desenvolvimento, 78).
520 $aRESUMO: Avaliou-se a eficiência de endotoxinas de Bacillus sphaericus (Bs 2362), B. thuringiensis var. Israelensis (Bti-H-14) e B. thuringiensis var. Kurstaki (Btk-Hd-1) no controle de nematóide de cisto Heterodera glycines, na soja cv. Cristalina, em casa de vegetação. Cinco doses (0, 250, 500, 1000, e 1500 mg) de cada toxina, com 108 esporos por grama, foram comparadas com 150 mg de aldicarb em um experimento com cinco repetições. Os produtos foram incorporados a 2 cm de profundidade e o solo irrigado com 100 mL de água destilada. Uma testemunha, com solo auto-clavado, foi incluído, para comparação do crescimento das plantas. Dez dias depois da aplicação de endotoxinas e aldicarb, uma plântula de soja, depois da emergência, foi transplantada em cada vaso contendo 1 kg de solo. Passados oitenta e três dias, avaliou-se peso de grãos/planta para diferentes doses de toxinas. Os tratamentos com endotoxina Btk-HD-1 na dosagem de 1500 mg/kg de solo e solo autoclavado diferiram significativamente (P<0.05) da dose zero. Os pesos dos grãos nos tratamentos com a endotoxina Btk-HD-1 dosagem de 1500 mg/kg de solo e solo autoclavado foram respectivamente 61 e 85 % maiores. Nenhuma das endotoxinas usadas neste estudo reduziu significativamente (P<0,05) a população final de nematóides em relação o controle. ABSTRACT: In a greenhouse pot experiment, efficiency of endotoxins obtained from pure cultures of Bacillus sphaericus (Bs 2362), B. thuringiensis var. israelensis (Bti-H-14) and B. thuringiensis var. kurstaki (Btk-Hd-1) was evaluated against soybean cyst nematode, Heterodera glycines on soybean cv. Cristalina. Five doses (0, 250, 500, 1000 and 1500 mg) of each toxin with 1.108 spores per gram and 150 mg aldicarb were incorporated in upper 2-cm soil layer followed by application of 100 mL distilled water/kg of soil. Autoclaved soil was used as control for comparing plant growth with treatments. The experimental design was a completely randomized, with five replicates. Ten days after the application of endotoxins, a three-day after emergence soybean seedling was transplanted in each pot. Eighty-three days later, the increase in grain weight/plant and final populations of soybean cyst nematodes were evaluated. In general, grain production was very low. Grain weights for treatments with endotoxin Btk-HD-1 dose 1500 mg/Kg of soil and autoclaved soil differed significantly (P<0.05) from the control, yielding respectively 61% and 85 % higher than the control. None of the endotoxins used in this study could significantly (P<0.05) reduce the final nematode populations in relation to the untreated control (autoclaved soil).
650 $aBacillus sphaericus
650 $abiological control
650 $aNematoda
650 $asoybeans
650 $aBactéria
650 $aCisto
650 $aControle Biológico
650 $aHeterodera Glycines
650 $aNematóide
650 $aSoja
653 $aBacterial endotoxins
653 $aBiocontrol
653 $aIsraelensis
653 $aKurstaki
653 $aNematóide do cisto
653 $aNematóide-do-cisto
653 $aNematóide-do-cisto da soja
653 $aSoybean cyst nematode
653 $athuringiensis var
700 1 $aMOREIRA, W. A.
700 1 $aALVES, R. T.
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