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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
29/11/2023 |
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Autoria: |
REID, R. I. |
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Título: |
Studies on the carbohydrate metabolism of sheep. X. Further studies on hypoglycaemia and hyperketonaemia in undernourished pregnant ewes and in ewes with pregnancy toxaemia. |
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Ano de publicação: |
1960 |
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Fonte/Imprenta: |
Australian Journal Agricultural Research, v. 11, n. 3, p. 346-363, 1960. |
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DOI: |
10.1071/AR9600346 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Data on blood glucose, ketone, and acetic acid values have been obtained over a period of several years from field cases of pregnancy toxaemia and from cases induced experimentally and their controls. When feed intake is controlled, differences between blood glucose and ketone levels in ewes moderately undernourished in late pregnancy are largely dependent on the number of foetuses. The consistency of these differences often allows accurate diagnosis of multiple and single pregnancies. Differences in blood glucose between undernourished monotocous and polytocous ewes disappear when undernutrition becomes severe or in the early stages of fasting after a period of moderate undernutrition. Differences in blood ketones tend to be maintained even after several days of fasting. The level of blood ketones during fasting depends on the previous level of nutrition of the ewe; blood glucose is unaffected by previous level of nutrition. The frequent presence of persistent normoglycaemia in ewes with pregnancy toxaemia is discussed in the light of data presented; it is concluded that the onset of pregnancy toxaemia often occurs in the presence of normal blood glucose levels. Blood volatile fatty acid (V.F.A.) levels are often high in those cases of pregnancy toxaemia which occur largely as a result of severe under nutrition in late pregnancy, in spite of an almost empty rumen. Only acetic acid was detected in six blood samples examined; this is considered to be of metabolic origin, but there is no consistent relationship with blood ketone level. The usual clinical syndrome of pregnancy toxaemia can be classified as acute or subacute. In the latter, cerebral depression reaches a certain stage of severity which is then maintained, survival is often prolonged, and ewes do not become comatose before death. Cases of pregnancy toxaemia induced by under nutrition alone usually show the acute syndrome. Blood ketones are higher in such cases than in fasted ewes showing no clinical signs; the critical blood ketone level appears to be about 30 mg per 100 ml. Cases induced in previously well-nourished ewes by fasting in association with a severe environmental stress are usually subacute; blood ketones are no higher than in ewes not showing clinical signs and are often considerably below 30 mg per 100 ml. The significance of these observations is discussed. MenosAbstract: Data on blood glucose, ketone, and acetic acid values have been obtained over a period of several years from field cases of pregnancy toxaemia and from cases induced experimentally and their controls. When feed intake is controlled, differences between blood glucose and ketone levels in ewes moderately undernourished in late pregnancy are largely dependent on the number of foetuses. The consistency of these differences often allows accurate diagnosis of multiple and single pregnancies. Differences in blood glucose between undernourished monotocous and polytocous ewes disappear when undernutrition becomes severe or in the early stages of fasting after a period of moderate undernutrition. Differences in blood ketones tend to be maintained even after several days of fasting. The level of blood ketones during fasting depends on the previous level of nutrition of the ewe; blood glucose is unaffected by previous level of nutrition. The frequent presence of persistent normoglycaemia in ewes with pregnancy toxaemia is discussed in the light of data presented; it is concluded that the onset of pregnancy toxaemia often occurs in the presence of normal blood glucose levels. Blood volatile fatty acid (V.F.A.) levels are often high in those cases of pregnancy toxaemia which occur largely as a result of severe under nutrition in late pregnancy, in spite of an almost empty rumen. Only acetic acid was detected in six blood samples examined; this is considered to be of metabolic or... Mostrar Tudo |
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Palavras-Chave: |
Hipoglicemia. |
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Thesagro: |
Distúrbio Animal; Metabolismo; Nutrição; Ovino; Prenhez; Toxemia. |
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Thesaurus Nal: |
Carbohydrate metabolism; Pregnancy complications; Pregnancy toxemia; Ruminant nutrition; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03249naa a2200277 a 4500
001 1523268
005 2023-11-29
008 1960 bl uuuu u00u1 u #d
024 7 $a10.1071/AR9600346$2DOI
100 1 $aREID, R. I.
245 $aStudies on the carbohydrate metabolism of sheep. X. Further studies on hypoglycaemia and hyperketonaemia in undernourished pregnant ewes and in ewes with pregnancy toxaemia.
260 $c1960
520 $aAbstract: Data on blood glucose, ketone, and acetic acid values have been obtained over a period of several years from field cases of pregnancy toxaemia and from cases induced experimentally and their controls. When feed intake is controlled, differences between blood glucose and ketone levels in ewes moderately undernourished in late pregnancy are largely dependent on the number of foetuses. The consistency of these differences often allows accurate diagnosis of multiple and single pregnancies. Differences in blood glucose between undernourished monotocous and polytocous ewes disappear when undernutrition becomes severe or in the early stages of fasting after a period of moderate undernutrition. Differences in blood ketones tend to be maintained even after several days of fasting. The level of blood ketones during fasting depends on the previous level of nutrition of the ewe; blood glucose is unaffected by previous level of nutrition. The frequent presence of persistent normoglycaemia in ewes with pregnancy toxaemia is discussed in the light of data presented; it is concluded that the onset of pregnancy toxaemia often occurs in the presence of normal blood glucose levels. Blood volatile fatty acid (V.F.A.) levels are often high in those cases of pregnancy toxaemia which occur largely as a result of severe under nutrition in late pregnancy, in spite of an almost empty rumen. Only acetic acid was detected in six blood samples examined; this is considered to be of metabolic origin, but there is no consistent relationship with blood ketone level. The usual clinical syndrome of pregnancy toxaemia can be classified as acute or subacute. In the latter, cerebral depression reaches a certain stage of severity which is then maintained, survival is often prolonged, and ewes do not become comatose before death. Cases of pregnancy toxaemia induced by under nutrition alone usually show the acute syndrome. Blood ketones are higher in such cases than in fasted ewes showing no clinical signs; the critical blood ketone level appears to be about 30 mg per 100 ml. Cases induced in previously well-nourished ewes by fasting in association with a severe environmental stress are usually subacute; blood ketones are no higher than in ewes not showing clinical signs and are often considerably below 30 mg per 100 ml. The significance of these observations is discussed.
650 $aCarbohydrate metabolism
650 $aPregnancy complications
650 $aPregnancy toxemia
650 $aRuminant nutrition
650 $aSheep
650 $aDistúrbio Animal
650 $aMetabolismo
650 $aNutrição
650 $aOvino
650 $aPrenhez
650 $aToxemia
653 $aHipoglicemia
773 $tAustralian Journal Agricultural Research$gv. 11, n. 3, p. 346-363, 1960.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
02/01/2014 |
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Data da última atualização: |
02/01/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, K. J. da; SILVA, C. B. da; TARDIN, F. D.; GUIMARAES, C. M.; SILVA, A. R. da; SOUZA, V. F. de; SANTOS, C. V. dos; MOURAO, C. S.; SANTOS, G. M. dos; MACHADO, P. H. B.; OLIVEIRA, M. S. |
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Afiliação: |
KARLA JORGE DA SILVA, Bolsista; CICERO BEZERRA DA SILVA, CPATSA; FLAVIO DESSAUNE TARDIN, CNPMS; CLEBER MORAIS GUIMARAES, CNPAF; ADELMO RESENDE DA SILVA, CNPMS; VANDER FILLIPE DE SOUZA, Bolsista; CRISLENE VIEIRA DOS SANTOS, Graduanda, UFSJ; CAMILA SIMAO MOURAO, Discente de graduação na UNIFEMM; GABRIELA MOURA DOS SANTOS, UNIFEEM; PEDRO HENRIQUE BORGES MACHADO, Discente de graduação na UNIFEMM; MATEUS SATURNINO OLIVEIRA, Discente de graduação da UFSJ. |
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Título: |
Avaliação do potencial agronômico de híbridos de sorgo granífero para tolerância à seca. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 7., 2013, Uberlândia. Variedade melhorada: a força da nossa agricultura: anais. Viçosa, MG: SBMP, 2013. |
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Páginas: |
p. 3370-3372. |
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Idioma: |
Português |
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Thesagro: |
Híbrido; Melhoramento genético vegetal; Sorghum bicolor. |
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Thesaurus NAL: |
Drought tolerance; Hybrids; Plant breeding. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/94621/1/Avaliacao-potencial-3.pdf
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Marc: |
LEADER 01010nam a2200301 a 4500
001 1974785
005 2014-01-02
008 2013 bl uuuu u00u1 u #d
100 1 $aSILVA, K. J. da
245 $aAvaliação do potencial agronômico de híbridos de sorgo granífero para tolerância à seca.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 7., 2013, Uberlândia. Variedade melhorada: a força da nossa agricultura: anais. Viçosa, MG: SBMP$c2013
300 $ap. 3370-3372.
650 $aDrought tolerance
650 $aHybrids
650 $aPlant breeding
650 $aHíbrido
650 $aMelhoramento genético vegetal
650 $aSorghum bicolor
700 1 $aSILVA, C. B. da
700 1 $aTARDIN, F. D.
700 1 $aGUIMARAES, C. M.
700 1 $aSILVA, A. R. da
700 1 $aSOUZA, V. F. de
700 1 $aSANTOS, C. V. dos
700 1 $aMOURAO, C. S.
700 1 $aSANTOS, G. M. dos
700 1 $aMACHADO, P. H. B.
700 1 $aOLIVEIRA, M. S.
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Embrapa Milho e Sorgo (CNPMS) |
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