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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
21/02/2014 |
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Actualizado : |
11/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DUTRA, F.; QUINTANS, G.; BANCHERO, G. |
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Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Lesions in the central nervous system associated with perinatal lamb mortality. |
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Fecha de publicación : |
2007 |
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Fuente / Imprenta : |
Australian Veterinary Journal, 2007, v.85, p.405-413. |
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DOI : |
10.1111/j.1751-0813.2007.00205.x |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted for publication 31 July 2007.DOI: https://doi.org/10.1111/j.1751-0813.2007.00205.x |
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Contenido : |
Objective: To identify and describe the occurrence of neurological lesions that could have an effect on lamb mortality.
Procedure?:The central nervous system was investigated macroscopically (n = 92) and microscopically (n = 72) in lambs dying in the perinatal period during 3 years in flocks of adult Corriedale ewes. The central nervous system was removed intact and samples of cerebral cortex, basal ganglia, thalamus, hippocampus, mesencephalon, cerebellar cortex, medulla oblongata, and cervical spinal cord were scored microscopically for the severity of neuronal dead, cytotoxic and perivascular oedema, and haemorrhage.
Results: Neurologic findings between birth and 6 days included haemorrhages in meninges, brain congestion and oedema, neuronal ischemic necrosis, intraparenchymal haemorrhages in medulla oblongata and cervical spinal cord, parasagittal cerebral necrosis, and periventricular leukomalacia. No significant lesions were found in anteparturient deaths or in those aged between 7 and 16 days. Oedema was more severe in the brain than in other regions of the central nervous system. Ischaemic neurons first appeared 24 hours post partum, increased linearly in number between 48 hours and 5 days post partum, and had a laminar distribution in the cerebral cortex, indicating a hypoxic?ischemic encephalopathy. Haemorrhages were most severe in the gray matter of medulla oblongata and cervical spinal cord, suggesting trauma due to instability of atlantoaxialis joint.
Conclusion: Lesions in the central nervous system can explain most deaths at birth and within 6 days of birth. The lesions were hypoxic-ischemic and appeared to be related to birth injury. MenosObjective: To identify and describe the occurrence of neurological lesions that could have an effect on lamb mortality.
Procedure?:The central nervous system was investigated macroscopically (n = 92) and microscopically (n = 72) in lambs dying in the perinatal period during 3 years in flocks of adult Corriedale ewes. The central nervous system was removed intact and samples of cerebral cortex, basal ganglia, thalamus, hippocampus, mesencephalon, cerebellar cortex, medulla oblongata, and cervical spinal cord were scored microscopically for the severity of neuronal dead, cytotoxic and perivascular oedema, and haemorrhage.
Results: Neurologic findings between birth and 6 days included haemorrhages in meninges, brain congestion and oedema, neuronal ischemic necrosis, intraparenchymal haemorrhages in medulla oblongata and cervical spinal cord, parasagittal cerebral necrosis, and periventricular leukomalacia. No significant lesions were found in anteparturient deaths or in those aged between 7 and 16 days. Oedema was more severe in the brain than in other regions of the central nervous system. Ischaemic neurons first appeared 24 hours post partum, increased linearly in number between 48 hours and 5 days post partum, and had a laminar distribution in the cerebral cortex, indicating a hypoxic?ischemic encephalopathy. Haemorrhages were most severe in the gray matter of medulla oblongata and cervical spinal cord, suggesting trauma due to instability of atlantoaxialis joint.
Conclusion... Presentar Todo |
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Thesagro : |
MORTALIDAD; OVINOS; PRODUCCION ANIMAL; SISTEMA NERVIOSO. |
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Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo |
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Marc : |
LEADER 02406naa a2200217 a 4500
001 1032975
005 2019-10-11
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1751-0813.2007.00205.x$2DOI
100 1 $aDUTRA, F.
245 $aLesions in the central nervous system associated with perinatal lamb mortality.$h[electronic resource]
260 $c2007
500 $aArticle history: Accepted for publication 31 July 2007.DOI: https://doi.org/10.1111/j.1751-0813.2007.00205.x
520 $aObjective: To identify and describe the occurrence of neurological lesions that could have an effect on lamb mortality. Procedure?:The central nervous system was investigated macroscopically (n = 92) and microscopically (n = 72) in lambs dying in the perinatal period during 3 years in flocks of adult Corriedale ewes. The central nervous system was removed intact and samples of cerebral cortex, basal ganglia, thalamus, hippocampus, mesencephalon, cerebellar cortex, medulla oblongata, and cervical spinal cord were scored microscopically for the severity of neuronal dead, cytotoxic and perivascular oedema, and haemorrhage. Results: Neurologic findings between birth and 6 days included haemorrhages in meninges, brain congestion and oedema, neuronal ischemic necrosis, intraparenchymal haemorrhages in medulla oblongata and cervical spinal cord, parasagittal cerebral necrosis, and periventricular leukomalacia. No significant lesions were found in anteparturient deaths or in those aged between 7 and 16 days. Oedema was more severe in the brain than in other regions of the central nervous system. Ischaemic neurons first appeared 24 hours post partum, increased linearly in number between 48 hours and 5 days post partum, and had a laminar distribution in the cerebral cortex, indicating a hypoxic?ischemic encephalopathy. Haemorrhages were most severe in the gray matter of medulla oblongata and cervical spinal cord, suggesting trauma due to instability of atlantoaxialis joint. Conclusion: Lesions in the central nervous system can explain most deaths at birth and within 6 days of birth. The lesions were hypoxic-ischemic and appeared to be related to birth injury.
650 $aMORTALIDAD
650 $aOVINOS
650 $aPRODUCCION ANIMAL
650 $aSISTEMA NERVIOSO
700 1 $aQUINTANS, G.
700 1 $aBANCHERO, G.
773 $tAustralian Veterinary Journal, 2007$gv.85, p.405-413.
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