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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
09/02/1996 |
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Data da última atualização: |
17/05/2023 |
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Autoria: |
COPPINGER, T. R.; MINTON, J. E.; REDDY, P. G.; BLECHA, F. |
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Título: |
Repeated restraint and isolation stress in lambs increases pituitary-adrenal secretions and reduces cell-mediated immunity. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 69, n. 7, p. 2808-2814, 1991. |
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DOI: |
10.2527/1991.6972808x. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Rambouillet crossbred ewe lambs were used to evaluate the effect of repeated restraint and isolation stress (RIS) on endocrinological and immunological functions. Lambs were blocked by weight and assigned to either RIS (n = 6) or to control (CON; n = 6) treatments. All lambs were tethered in environmentally controlled rooms at 22 degrees C with constant light and, at this time (d 0), were given 1 mg of ovalbumin in adjuvant. On d 12, catheters were placed nonsurgically into the jugular vein of all lambs, and they were reimmunized with .5 mg of ovalbumin in incomplete adjuvant. Each lamb in the RIS treatment group was removed from its home stanchion, isolated from visual and tactile (but not auditory and olfactory) contact with other lambs, and restrained for 6 h on d 14, 15, and 16. Lambs in CON treatment remained undisturbed in their home stanchions. Lymphocyte blastogenic function and production of interleukin-2 (IL-2) were assessed in samples of blood collected before and at the conclusion (0 and 6 h) of each of the three stress bouts. In addition, ACTH and cortisol secretion in response to RIS was evaluated in samples of plasma and serum collected at .5-h intervals on the first and last days of stress (d 14 and 16). Finally, antibody production in response to immunization against ovalbumin was assessed in samples of serum obtained 14 d after reimmunization on d 12 of the study. Polynomial curves fit to the ACTH and cortisol data differed (P less than .005) on both d 14 and 16 between RIS and CON treatments. MenosAbstract: Rambouillet crossbred ewe lambs were used to evaluate the effect of repeated restraint and isolation stress (RIS) on endocrinological and immunological functions. Lambs were blocked by weight and assigned to either RIS (n = 6) or to control (CON; n = 6) treatments. All lambs were tethered in environmentally controlled rooms at 22 degrees C with constant light and, at this time (d 0), were given 1 mg of ovalbumin in adjuvant. On d 12, catheters were placed nonsurgically into the jugular vein of all lambs, and they were reimmunized with .5 mg of ovalbumin in incomplete adjuvant. Each lamb in the RIS treatment group was removed from its home stanchion, isolated from visual and tactile (but not auditory and olfactory) contact with other lambs, and restrained for 6 h on d 14, 15, and 16. Lambs in CON treatment remained undisturbed in their home stanchions. Lymphocyte blastogenic function and production of interleukin-2 (IL-2) were assessed in samples of blood collected before and at the conclusion (0 and 6 h) of each of the three stress bouts. In addition, ACTH and cortisol secretion in response to RIS was evaluated in samples of plasma and serum collected at .5-h intervals on the first and last days of stress (d 14 and 16). Finally, antibody production in response to immunization against ovalbumin was assessed in samples of serum obtained 14 d after reimmunization on d 12 of the study. Polynomial curves fit to the ACTH and cortisol data differed (P less than .005) on b... Mostrar Tudo |
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Palavras-Chave: |
Adrenais; Adrenocorticotropic Hormone; Hydrocortisone; Lymphocyte Activation; Pituitary-Adrenal System; Resposta imunologica; Stresse. |
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Thesagro: |
Ovino. |
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Thesaurus Nal: |
Animal stress; Antibody formation; Cortisol; Females; Ovalbumin; Sheep diseases. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02541naa a2200337 a 4500
001 1522080
005 2023-05-17
008 1991 bl uuuu u00u1 u #d
024 7 $a10.2527/1991.6972808x.$2DOI
100 1 $aCOPPINGER, T. R.
245 $aRepeated restraint and isolation stress in lambs increases pituitary-adrenal secretions and reduces cell-mediated immunity.$h[electronic resource]
260 $c1991
520 $aAbstract: Rambouillet crossbred ewe lambs were used to evaluate the effect of repeated restraint and isolation stress (RIS) on endocrinological and immunological functions. Lambs were blocked by weight and assigned to either RIS (n = 6) or to control (CON; n = 6) treatments. All lambs were tethered in environmentally controlled rooms at 22 degrees C with constant light and, at this time (d 0), were given 1 mg of ovalbumin in adjuvant. On d 12, catheters were placed nonsurgically into the jugular vein of all lambs, and they were reimmunized with .5 mg of ovalbumin in incomplete adjuvant. Each lamb in the RIS treatment group was removed from its home stanchion, isolated from visual and tactile (but not auditory and olfactory) contact with other lambs, and restrained for 6 h on d 14, 15, and 16. Lambs in CON treatment remained undisturbed in their home stanchions. Lymphocyte blastogenic function and production of interleukin-2 (IL-2) were assessed in samples of blood collected before and at the conclusion (0 and 6 h) of each of the three stress bouts. In addition, ACTH and cortisol secretion in response to RIS was evaluated in samples of plasma and serum collected at .5-h intervals on the first and last days of stress (d 14 and 16). Finally, antibody production in response to immunization against ovalbumin was assessed in samples of serum obtained 14 d after reimmunization on d 12 of the study. Polynomial curves fit to the ACTH and cortisol data differed (P less than .005) on both d 14 and 16 between RIS and CON treatments.
650 $aAnimal stress
650 $aAntibody formation
650 $aCortisol
650 $aFemales
650 $aOvalbumin
650 $aSheep diseases
650 $aOvino
653 $aAdrenais
653 $aAdrenocorticotropic Hormone
653 $aHydrocortisone
653 $aLymphocyte Activation
653 $aPituitary-Adrenal System
653 $aResposta imunologica
653 $aStresse
700 1 $aMINTON, J. E.
700 1 $aREDDY, P. G.
700 1 $aBLECHA, F.
773 $tJournal of Animal Science$gv. 69, n. 7, p. 2808-2814, 1991.
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| 1. |  | GUIDICE, O. B. SILVA; OLIVEIRA, T. S. de; COSTA, A. M. M.; CORRÊA-FILHO, L. C.; LIMA, J. P.; FOGACA, F. H. dos S.; CABRAL, L. M. C.; TONON, R. V. Development of alginate-based coatings incorporated with oregano essential oil nanoemulsions for application to fish fillets. In: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 29., 2024. Florianópolis. Trabalhos aprovados. O futuro dos alimentos: inovação, saúde e sustentabilidade na cadeia produtiva de alimentos. Santa Catarina: Sociedade Brasileira de Ciência e Tecnologia de Alimentos. CBCTA. 14 a 17 out. 2024. E-Pôster.| Tipo: Resumo em Anais de Congresso |
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