| |
|
|
| Registros recuperados : 583 | |
| 4. |  | NEPOMUCENO, A. L. A agricultura e as plantas geneticamente modificados. In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Proceedings... Londrina: Embrapa Soybean, 2004. p. 1217-1220. Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.| Biblioteca(s): Embrapa Soja. |
|   |
| 7. | | NEPOMUCENO, A. L. Biossegurança envolvendo OGM em laboratórios: nova legislação. In: ENCONTRO NACIONAL SOBRE METODOLOGIAS DE LABORATÓRIO-MET, 11., 2006, Concórdia. Anais. Concórdia: Embrapa Suínos e Aves, 2006. p. 22. (Embrapa Suínos e Aves. Documentos, 112). Organizadores: Airton Kunz, Martha Mayumi Higarashi, Paulo Esteves, Cátia Silene Klein, Carlos Bernardi, Claudete Hara Klein, Anelise Sulzbach, Tânia Maria Biavatti Celant.| Biblioteca(s): Embrapa Soja. |
| |
| 20. | | NEPOMUCENO, A. L.; ABDELNOOR, R.; CARNEIRO, N. A biotecnologia sul-americana na agricultura. In: CONGRESO DE SOJA DEL MERCOSUR, 3., 2006, Rosário. Mercosoja 2006: conferencias plenarias, foros, workshops. Rosário: Associación de la Cadena de Soja Argentina, 2006. p. 31-33. Nome correto do segundo autor ABDELNOOR, R. V.| Biblioteca(s): Embrapa Soja. |
| |
| Registros recuperados : 583 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
17/09/1998 |
|
Data da última atualização: |
08/09/2021 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
ELOY, A. M. X.; RODWAY, R. G. |
|
Afiliação: |
ANGELA MARIA XAVIER ELOY, CNPC. |
|
Título: |
Effect of isolation stress on beta-endorphin and LH levels in ovariectomized ewes. |
|
Ano de publicação: |
1994 |
|
Fonte/Imprenta: |
Animal Production, v. 58, n. 3, p. 483, 1994. Abstract 220. |
|
Idioma: |
Inglês |
|
Notas: |
Abstract presented in the MEETING OF THE BRITISH SOCIETY OF ANIMAL PRODUCTION, 109., 1994, Scarborough. Proceedings. |
|
Conteúdo: |
Abstract: The objective of this experiment was to study the effect of the psychological stress of isolation on luteinizing hormone (LH) secretion in ovariectomized ewes. Sheep were initially penned in pairs. Isolation was accomplished by removing the non-experimental sheep to another room. The trials lasted from 10.00 untii 18.00 h. ln the first stage (from 10.00 until 14.00 h) the animals were alIowed to have visual contactwith their partners, while in the second stage (14.00 until 18.00 h) the animals were isolated. Blood samples were taken at 15-min intervals throughout the experiment from jugular catheters implanted the previous day. Samples were analysed for glucose, (Betha-endorphin and LH. The isolation stress caused a significant (P < 0.05) elevation of (Betha-endorphin (316 (s.e. 11-4) v. 381 (s.e. 20.7) ng/l) but did not alter significantly (P> 0.05) the mean LH levels (4.23 (s.e. 0.14) v. 3.92 (s.e. 0.13) ug/1). However LH secretion was seen to dec1ine rapidly after the onset of isolation and then to recover. When the data were analysed in 2-h time periods the LH levels were significantly (P < 0.05) reduced betwen the 2 h before (4.70 (s.e. 0.2) ug/l) and after (3.90 (s.e. 0.2) ug/l) isolation. LH pplse analysis performed using PULSAR showed that the pulse frequency and pulse amplitude were reduced after isolation (3.8 (s.e. 1.2) v. 3.3 (s.e. 1.1) pulses per 4 h) and (2.6 (s.e. 1.5) v. 1.6 (s.e. 1.0) ug/I), respectively. Glucose levels showed significant (P < 0.05) elevation (2.7 (s.e. 0.1) v. 3.2 (s.e. 0.1) nmol/1) during isolation stress. We can conclude that a psychological stress such as isolation in a species such as the sheep stimulates opioid peptides release and inhibits LH secretion. Whether these two events are causally linked remains to be clarified. MenosAbstract: The objective of this experiment was to study the effect of the psychological stress of isolation on luteinizing hormone (LH) secretion in ovariectomized ewes. Sheep were initially penned in pairs. Isolation was accomplished by removing the non-experimental sheep to another room. The trials lasted from 10.00 untii 18.00 h. ln the first stage (from 10.00 until 14.00 h) the animals were alIowed to have visual contactwith their partners, while in the second stage (14.00 until 18.00 h) the animals were isolated. Blood samples were taken at 15-min intervals throughout the experiment from jugular catheters implanted the previous day. Samples were analysed for glucose, (Betha-endorphin and LH. The isolation stress caused a significant (P < 0.05) elevation of (Betha-endorphin (316 (s.e. 11-4) v. 381 (s.e. 20.7) ng/l) but did not alter significantly (P> 0.05) the mean LH levels (4.23 (s.e. 0.14) v. 3.92 (s.e. 0.13) ug/1). However LH secretion was seen to dec1ine rapidly after the onset of isolation and then to recover. When the data were analysed in 2-h time periods the LH levels were significantly (P < 0.05) reduced betwen the 2 h before (4.70 (s.e. 0.2) ug/l) and after (3.90 (s.e. 0.2) ug/l) isolation. LH pplse analysis performed using PULSAR showed that the pulse frequency and pulse amplitude were reduced after isolation (3.8 (s.e. 1.2) v. 3.3 (s.e. 1.1) pulses per 4 h) and (2.6 (s.e. 1.5) v. 1.6 (s.e. 1.0) ug/I), respectively. Glucose levels showed significant (P < 0.05... Mostrar Tudo |
|
Palavras-Chave: |
Endorfina; LH. |
|
Thesagro: |
Hormônio; Ovino; Stress. |
|
Thesaurus NAL: |
Endorphins; Sheep. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/515008/1/RACEffectofisolation.pdf
|
|
Marc: |
null
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
