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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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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: |
26/06/2023 |
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Autoria: |
MELLOR, D. J.; MATHESON, I. C. |
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Título: |
Daily changes in the curved crown-rump length of individual sheep fetuses during the last 60 days of pregnancy and effects of different levels of maternal nutrition. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Quarterly Journal Experimental Physiology, v. 64, n. 2, p. 119-131, 1979. |
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DOI: |
10.1113/expphysiol.1979.sp002462. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A method is described by which daily changes in the curved crown-rump length (CRL) of individual sheep fetuses were observed during the last 50 to 60 days of pregnancy. The mean discrepancy between the derived value for CRL and the CRL measured directly in eight fetuses aged between 100 and 135 days and in 12 lambs born at 143 to 150 days was 1.5 +/- 0.2 per cent (mean +/- s.e.). In adequately nourished ewes between 100 and 115 days of gestation growth rate showed a between-fetus range of 4.2 to 7.5 mm.day-1 (n=16), remained constant within each fetus until about 132 days and then decreased by about 27 per cent (n=4). Decreases in growth rate of about 30 to 44 per cent occurred within three days of the introduction of maternal undernutrition at 115 or 120 days of gestation (n=6) and in two other fetuses maternal undernutrition effected an almost complete cessation of growth. The relationship between fetal CRL and weight is described and some physiological implications of the results are discussed. |
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Palavras-Chave: |
Maternal Fetal Exchange; Nutrition Disorders; Physiopathology. |
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Thesagro: |
Fisiologia; Ovino; Prenhez; Reprodução. |
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Thesaurus Nal: |
Biometry; Birth weight; Blood glucose; Embryology; Pregnancy complications; Reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02006naa a2200313 a 4500
001 1520517
005 2023-06-26
008 1979 bl uuuu u00u1 u #d
024 7 $a10.1113/expphysiol.1979.sp002462.$2DOI
100 1 $aMELLOR, D. J.
245 $aDaily changes in the curved crown-rump length of individual sheep fetuses during the last 60 days of pregnancy and effects of different levels of maternal nutrition.$h[electronic resource]
260 $c1979
520 $aAbstract: A method is described by which daily changes in the curved crown-rump length (CRL) of individual sheep fetuses were observed during the last 50 to 60 days of pregnancy. The mean discrepancy between the derived value for CRL and the CRL measured directly in eight fetuses aged between 100 and 135 days and in 12 lambs born at 143 to 150 days was 1.5 +/- 0.2 per cent (mean +/- s.e.). In adequately nourished ewes between 100 and 115 days of gestation growth rate showed a between-fetus range of 4.2 to 7.5 mm.day-1 (n=16), remained constant within each fetus until about 132 days and then decreased by about 27 per cent (n=4). Decreases in growth rate of about 30 to 44 per cent occurred within three days of the introduction of maternal undernutrition at 115 or 120 days of gestation (n=6) and in two other fetuses maternal undernutrition effected an almost complete cessation of growth. The relationship between fetal CRL and weight is described and some physiological implications of the results are discussed.
650 $aBiometry
650 $aBirth weight
650 $aBlood glucose
650 $aEmbryology
650 $aPregnancy complications
650 $aReproduction
650 $aSheep
650 $aFisiologia
650 $aOvino
650 $aPrenhez
650 $aReprodução
653 $aMaternal Fetal Exchange
653 $aNutrition Disorders
653 $aPhysiopathology
700 1 $aMATHESON, I. C.
773 $tQuarterly Journal Experimental Physiology$gv. 64, n. 2, p. 119-131, 1979.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | SALIS, H. H. C. de; JESUS, B. S. de; MORELLI, M. M.; MENDES, C. C. A.; SANTOS, J. A. dos; SANTOS, R. M. do. Estudo de conflitos de uso da terra na região da comunidade extrativista de Água Boa, em Rio Pardo de Minas - MG. In: SIMPÓSIO NACIONAL DE ÁREAS PROTEGIDAS, 3., 2014, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2014. p. 414-421. Breno Souza de Jesus, bolsista CPAC.| Tipo: Artigo em Anais de Congresso |
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