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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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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 11 | |
| 1. |  | MASSRUHÁ, S. M. F. S.; SILVA, J. dos S. V. da; CRUZ, S. A. B. da; STEFANES, M.; SANTOS, E. M. S. Sistema para monitoramento da cobertura vegetal - estudo de caso: estado de Mato Grosso do Sul. In: SIMPÓSIO DE GEOTECNOLOGIAS NO PANTANAL, 1., 2006, Campo Grande, MS. Anais... Campinas: Embrapa Informática Agropecuária; São José dos Campos: Inpe, 2006. p. 540-548. Geopantanal 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agricultura Digital. |
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| 2. | | GUERRA, D. S.; NICKEL, O.; VALDEBENITO-SANHUEZA, R. M.; MARODIN, G. A. B.; FAJARDO, T. V. M. Apple stem grooving virus afeta infecções de manchas foliares causadas por Colletotrichum gloeosporioides em macieiras cv. Maxi Gala. Fitopatologia Brasileira, Brasília, DF, v. 32, p. S 318, ago. 2007. 318 Suplemento. Edição dos resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, 13 a 17 de agosto de 2007. Resumo 1053.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 8. | | McCLURE, M. C.; SONSTEGARD, T. S.; WIGGANS, G. R.; EENENNAAM, A. L. V.; WEBER, K. L.; PENEDO, C. T.; BERRY, D. P.; FLYNN, J.; GARCIA, J. F.; CARMO, A. S.; REGITANO, L. C. de A.; ALBUQUERQUE, M.; SILVA, M. V. G. B.; MACHADO, M. A.; COFFEY, M.; MOORE, K.; BOSCHER, M. Y.; GENESTOUT, L.; MAZZA, R.; TAYLOR, J. F.; SCHNABEL, R. D.; SIMPSON, B.; MARQUES, E.; McEWAN, J. C.; CROMIE, A.; COUTINHO, L. L.; KUEHN, L. A.; KEELE, J. W.; PIPER, E. K.; COOK, J.; WILLIAMS, R.; TASSELL, C. P. V. Imputation of microsatellite alleles from dense SNP genotypes for parentage verification across multiple Bos taurus and Bos indicus breeds. Frontiers in Genetics, v. 4, n. 176, 2013. 11 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
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| Registros recuperados : 11 | |
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| Registros recuperados : 2 | |
| 2. | | 0901361, REVISTA CIENTIFICA DE PRODUCAO ANIMAL, Sociedade Nordestina de Producao Animal, Fortaleza-CE
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Acre; Embrapa Agroindústria Tropical; Embrapa Amapá; Embrapa Arroz e Feijão; Embrapa Caprinos e Ovinos; Embrapa Gado de Corte; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Meio-Norte; Embrapa Semiárido. | |
| Registros recuperados : 2 | |
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