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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 Amazônia Oriental; Embrapa Pecuária Sudeste. |
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Data corrente: |
15/02/2018 |
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Data da última atualização: |
22/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, L. K. X.; SOUSA, J. S.; SILVA, A. O. A.; LOURENÇO JUNIOR, J. B.; FATURI, C.; MARTORANO, L. G.; FRANCO, I. M.; PANTOJA, M. H. A.; BARROS, D. V.; GARCIA, A. R. |
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Afiliação: |
L. K. X. Silva, UFPA; J. S. SOUSA, UFPA; A. O. A. SILVA, UFPA; JOSÉ DE BRITO LOURENÇO JUNIOR, UFPA; C. FATURI, UFRA; LUCIETA GUERREIRO MARTORANO, CPATU; I. M. FRANCO, UFPA; M. H. A. PANTOJA, UFPA; D. V. BARROS, UFPA; ALEXANDRE ROSSETTO GARCIA, CPPSE. |
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Título: |
Testicular thermoregulation, scrotal surface temperature patterns and semen quality of water buffalo bulls reared in a tropical climate. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Andrologia, v. 50, n. 2, e12836, Mar. 2018. |
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DOI: |
10.1111/and.12836 |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated the capacity of thermoregulation and its consequences on the scrotal surface temperature patterns and semen quality of buffalo bulls raised in a wet tropical climate. Eleven water buffaloes were evaluated in the rainiest, in the transitional and in the less rainy season. Air temperature and humidity were consistently high, but the animals did not show thermal stress in any season. The scrotal temperature gradient of buffalo bulls using infrared thermography was described, and three parallel and decreasing thermal bands were characterised. Sperm quality (n = 176 ejaculates) was maintained in normal parameters over the periods. Pearson's coefficients showed that sperm volume and progressive motility were negatively correlated with ocular globe, epididymal tail and minimum scrotal temperatures (p < .01). Sperm membrane integrity was negatively influenced by increases in epididymal tail and minimum scrotal temperatures (p < .01). Ocular globe temperature also showed positive correlation with rectal, spermatic cord, and epididymal tail temperatures (p < .01). Therefore, even under high temperature and humidity, the thermoregulatory system was effective in preventing heat stress and the normality of scrotal surface temperatures, spermatogenesis and sperm maturation were maintained. |
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Palavras-Chave: |
Bubalino; Escroto; Temperaturas escrotais; Termografia infravermelha. |
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Thesagro: |
Bubalus Bubalis; Sêmen; Temperatura. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02288naa a2200325 a 4500
001 2087641
005 2018-11-22
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/and.12836$2DOI
100 1 $aSILVA, L. K. X.
245 $aTesticular thermoregulation, scrotal surface temperature patterns and semen quality of water buffalo bulls reared in a tropical climate.$h[electronic resource]
260 $c2018
520 $aThis study evaluated the capacity of thermoregulation and its consequences on the scrotal surface temperature patterns and semen quality of buffalo bulls raised in a wet tropical climate. Eleven water buffaloes were evaluated in the rainiest, in the transitional and in the less rainy season. Air temperature and humidity were consistently high, but the animals did not show thermal stress in any season. The scrotal temperature gradient of buffalo bulls using infrared thermography was described, and three parallel and decreasing thermal bands were characterised. Sperm quality (n = 176 ejaculates) was maintained in normal parameters over the periods. Pearson's coefficients showed that sperm volume and progressive motility were negatively correlated with ocular globe, epididymal tail and minimum scrotal temperatures (p < .01). Sperm membrane integrity was negatively influenced by increases in epididymal tail and minimum scrotal temperatures (p < .01). Ocular globe temperature also showed positive correlation with rectal, spermatic cord, and epididymal tail temperatures (p < .01). Therefore, even under high temperature and humidity, the thermoregulatory system was effective in preventing heat stress and the normality of scrotal surface temperatures, spermatogenesis and sperm maturation were maintained.
650 $aBubalus Bubalis
650 $aSêmen
650 $aTemperatura
653 $aBubalino
653 $aEscroto
653 $aTemperaturas escrotais
653 $aTermografia infravermelha
700 1 $aSOUSA, J. S.
700 1 $aSILVA, A. O. A.
700 1 $aLOURENÇO JUNIOR, J. B.
700 1 $aFATURI, C.
700 1 $aMARTORANO, L. G.
700 1 $aFRANCO, I. M.
700 1 $aPANTOJA, M. H. A.
700 1 $aBARROS, D. V.
700 1 $aGARCIA, A. R.
773 $tAndrologia$gv. 50, n. 2, e12836, Mar. 2018.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
23/11/2017 |
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Data da última atualização: |
04/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
LAZZAROTTO, S. R. da S.; BET, C. D.; HORNUNG, P. S.; LAZZAROTTO, M.; SCHNITZLER, E. |
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Afiliação: |
Simone Rosa da Silveira Lazzarotto, Doutoranda da UEPG; Camila Delinski Bet, UEPG; Polyanna Silveira Hornung, UFPR; MARCELO LAZZAROTTO, CNPF; Egon Schnitzler, UEPG. |
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Título: |
Induced effects by oxidation with potassium permanganate on the thermal, morphological, colorimetric and pasting properties of corn starch. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Ukrainian Food Journal, v. 6, n. 2, p. 197-210, 2017. |
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DOI: |
10.24263/2304- 974X-2017-6-2-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Introduction. Native starches are the most consumed polysaccharides in human diet. They are used in several industries as food, textile, pharmaceutic, etc. However due to some limitations starches should be modified chemically. Materials and methods. Corn starch modified with standard solutions of potassium permanganate (KMnO4) was analysed by simultaneous thermogravimetry-differential thermal analysis, differential scanning calorimetry, rapid viscoamylographic analysis, field emission gun-scanning electron microscopy/energy dispersive spectroscopy, X-ray powder diffraction and colorimetric analysis. Results and discussion. Corn starch was oxidised with KMnO4 at different concentrations (0.01; 0.02 and 0.05 mol L-1) at pH = 6.0 for 1 hour. (0.01; 0.02 and 0.05 mol L-1), pH = 6.0 for 1 hour. After filtered, washed and dried at 40 oC by 24 hours, the properties of the samples were investigated. Thermogravimetric curves showed an endothermic peak attributed to evaporation of water and two exothermic peaks, which refer to the decomposition and oxidation of organic matter until the formation of ash. A period of stability was observed, which decrease after modification. The gelatinisation of oxidised starch occurred at higher peak temperatures and also required higher gelatinisation enthalpy. The viscosity of the samples was significantly reduced and the relative crystallinity increased in proportion to the oxidant concentration used. Manganese and potassium content increased with the modification. There were no morphological changes after oxidation; however a darkening of the samples was identified due to the presence of potassium and manganese observed by energy dispersive spectroscopy (EDS). Conclusions. The obtained fluid paste with low retrogradation tendency suggests the application of oxidised starch in the paper industry. MenosIntroduction. Native starches are the most consumed polysaccharides in human diet. They are used in several industries as food, textile, pharmaceutic, etc. However due to some limitations starches should be modified chemically. Materials and methods. Corn starch modified with standard solutions of potassium permanganate (KMnO4) was analysed by simultaneous thermogravimetry-differential thermal analysis, differential scanning calorimetry, rapid viscoamylographic analysis, field emission gun-scanning electron microscopy/energy dispersive spectroscopy, X-ray powder diffraction and colorimetric analysis. Results and discussion. Corn starch was oxidised with KMnO4 at different concentrations (0.01; 0.02 and 0.05 mol L-1) at pH = 6.0 for 1 hour. (0.01; 0.02 and 0.05 mol L-1), pH = 6.0 for 1 hour. After filtered, washed and dried at 40 oC by 24 hours, the properties of the samples were investigated. Thermogravimetric curves showed an endothermic peak attributed to evaporation of water and two exothermic peaks, which refer to the decomposition and oxidation of organic matter until the formation of ash. A period of stability was observed, which decrease after modification. The gelatinisation of oxidised starch occurred at higher peak temperatures and also required higher gelatinisation enthalpy. The viscosity of the samples was significantly reduced and the relative crystallinity increased in proportion to the oxidant concentration used. Manganese and potassium content increased with... Mostrar Tudo |
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Thesagro: |
Amido; Milho; Oxidação; Permanganato de potássio. |
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Thesaurus NAL: |
Corn starch; Oxidation; Potassium permanganate. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167360/1/2017-MarceloL-UFJ-Induced.pdf
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Marc: |
LEADER 02682naa a2200265 a 4500
001 2080555
005 2018-01-04
008 2017 bl uuuu u00u1 u #d
024 7 $a10.24263/2304- 974X-2017-6-2-3$2DOI
100 1 $aLAZZAROTTO, S. R. da S.
245 $aInduced effects by oxidation with potassium permanganate on the thermal, morphological, colorimetric and pasting properties of corn starch.$h[electronic resource]
260 $c2017
520 $aIntroduction. Native starches are the most consumed polysaccharides in human diet. They are used in several industries as food, textile, pharmaceutic, etc. However due to some limitations starches should be modified chemically. Materials and methods. Corn starch modified with standard solutions of potassium permanganate (KMnO4) was analysed by simultaneous thermogravimetry-differential thermal analysis, differential scanning calorimetry, rapid viscoamylographic analysis, field emission gun-scanning electron microscopy/energy dispersive spectroscopy, X-ray powder diffraction and colorimetric analysis. Results and discussion. Corn starch was oxidised with KMnO4 at different concentrations (0.01; 0.02 and 0.05 mol L-1) at pH = 6.0 for 1 hour. (0.01; 0.02 and 0.05 mol L-1), pH = 6.0 for 1 hour. After filtered, washed and dried at 40 oC by 24 hours, the properties of the samples were investigated. Thermogravimetric curves showed an endothermic peak attributed to evaporation of water and two exothermic peaks, which refer to the decomposition and oxidation of organic matter until the formation of ash. A period of stability was observed, which decrease after modification. The gelatinisation of oxidised starch occurred at higher peak temperatures and also required higher gelatinisation enthalpy. The viscosity of the samples was significantly reduced and the relative crystallinity increased in proportion to the oxidant concentration used. Manganese and potassium content increased with the modification. There were no morphological changes after oxidation; however a darkening of the samples was identified due to the presence of potassium and manganese observed by energy dispersive spectroscopy (EDS). Conclusions. The obtained fluid paste with low retrogradation tendency suggests the application of oxidised starch in the paper industry.
650 $aCorn starch
650 $aOxidation
650 $aPotassium permanganate
650 $aAmido
650 $aMilho
650 $aOxidação
650 $aPermanganato de potássio
700 1 $aBET, C. D.
700 1 $aHORNUNG, P. S.
700 1 $aLAZZAROTTO, M.
700 1 $aSCHNITZLER, E.
773 $tUkrainian Food Journal$gv. 6, n. 2, p. 197-210, 2017.
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