|
|
|
| Registros recuperados: 187 | |
|
| |
|
|
| Vieira Filho,JA; Garcia,EA; Oba,E; Santos,TA; Molino,AB; Silva,AP; Pelícia,K; Paz,ICLA. |
| ABSTRACT The aim of this study was to compare the effects of beak trimming by hot blade or infrared radiation on production indicators and plasma levels of corticosterone in pullets. During the rearing phase, an entirely random delineation was used a 2 x 3 factorial design (two different techniques for beak trimming x 3 strains), a total of six treatments with six repetitions of 20 hens. In the growing phase, the previous treatments were divided into 12, with eight repetitions with seven hens. These treatments were then distributed in a factorial design of 2 x 3 x 2 (two methodologies for beak trimming during rearing phase x three strains x with or without beak trimming at ten weeks of age). In the rearing phase the birds treated by infrared radiation had... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beak treatment; Infrared radiation; Poultry production; Stress; Welfare.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100063 |
| |
|
|
| Lima,A.P.; Moura,M.D.; Rosa e Silva,A.A.M.. |
| Endometriosis is a progressive estrogen-dependent disease affecting women during their reproductive years. The objective of the present study was to investigate whether endometriosis is associated with stress parameters. We determined cortisol and prolactin levels in serum, peritoneal and follicular fluid from infertile women with endometriosis and fertile women without the disease. The extent of the disease was staged according to the revised American Fertility Society classification (1997). Serum and peritoneal fluid were collected from 49 women aged 19 to 39 years undergoing laparoscopy. Eighteen women had stage I-II endometriosis and 10 had stage III-IV. Controls were 21 women undergoing laparoscopy for tubal sterilization. Follicular fluid was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endometriosis; Stress; Infertility; Prolactin; Cortisol. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000800015 |
| |
|
| |
|
| |
|
| |
|
|
| Schwarz,Aline; Hosomi,Rosana Zoriki; Flório,Jorge Camilo; Bernardi,Maria Martha; Górniak,Silvana Lima; Spinosa,Helenice Souza. |
| The present study evaluated the central monoamine levels of male and female adult rat offspring exposed orally by gavage to 0.0, 0.7, 3.0 and 15.0 mg/kg I. carnea aqueous extract daily, from gestation day (GD) 5 to GD 21. Several alterations in the monoamine activity systems were observed. However, the major differences were noted between the 0.0 mg/kg and the no gavage control groups, showing that alterations showing that alterations were not due to the alterations to the aqueous extract. The control data showed that gavage and handling of dams were stressful enough to produce a significant decline in 3,4-dihydroxyphenylacetic acid (DOPAC) and an increase in vanilmandelic acid (VMA), indicating decreased dopamine (DA) and enhanced norepinephrine (NE)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea carnea; Neurotransmitter; Perinate; Rats; Stress. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300009 |
| |
|
| |
|
|
| Kiilerich, Pia; Servili, Arianna; Peron, Sandrine; Valotaire, Claudiane; Goardon, Lionel; Leguen, Isabelle; Prunet, Patrick. |
| This study aims to shed light on corticosteroid regulation of stress in teleost fish with focus on the corticosteroid signalling system. The role of the mineralocorticoid-like hormone 11-deoxycorticosterone (DOC) in fish is still enigmatic, as is the function of the mineralocorticoid receptor, MR. Low plasma DOC levels and ubiquitous tissue distribution of MR question the physiological relevance of the mineralocorticoid-axis. Furthermore, the particular purpose of each of the three corticosteroid receptors in fish, the glucocorticoid receptors, GR1 and GR2, and the MR, is still largely unknown. Therefore we investigate the regulation of cortisol and DOC in plasma and mRNA levels of MR, GR1 and GR2 in the HPI-axis tissue (hypothalamus, pituitary and... |
| Tipo: Text |
Palavras-chave: Stress; Rainbow trout; Confinement; Cortisol; DOC; MR; GR1; GR2; HPI-axis. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00396/50737/51439.pdf |
| |
|
| |
|
|
| Bourassa, Mark A.; Meissner, Thomas; Cerovecki, Ivana; Chang, Paul S.; Dong, Xiaolong; De Chiara, Giovanna; Donlon, Craig; Dukhovskoy, Dmitry S.; Elya, Jocelyn; Fore, Alexander; Fewings, Melanie R.; Foster, Ralph C.; Gille, Sarah T.; Haus, Brian K.; Hristova-veleva, Svetla; Holbach, Heather M.; Jelenak, Zorana; Knaff, John A.; Kranz, Sven A.; Manaster, Andrew; Mazloff, Matthew; Mears, Carl; Mouche, Alexis; Portabella, Marcos; Reul, Nicolas; Ricciardulli, Lucrezia; Rodriguez, Ernesto; Sampson, Charles; Solis, Daniel; Stoffelen, Ad; Stukel, Michael R.; Stiles, Bryan; Weissman, David; Wentz, Frank. |
| Strengths and weakness of remotely sensed winds are discussed, along with the current capabilities for remotely sensing winds and stress. Future missions are briefly mentioned. The observational needs for a wide range of wind and stress applications are provided. These needs strongly support a short list of desired capabilities of future missions and constellations. |
| Tipo: Text |
Palavras-chave: Satellite; Wind; Stress; Ocean; Requirements. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00511/62312/66565.pdf |
| |
|
|
| Guilbaud, Morgan; Chafsey, Ingrid; Pilet, Marie-france; Leroi, Francoise; Prevost, Herve; Hebraud, Michel; Dousset, Xavier. |
| Aims: To investigate the effect of liquid smoke on growth, survival, proteomic pattern and haemolytic potential of Listeria monocytogenes. Methods and Results: Growth and survival curves were recorded in brain-heart infusion broth supplemented with three concentrations of liquid smoke. L. monocytogenes growth was inhibited in the presence of 15 mu g ml(-1) phenol while a rapid decrease in cell viability occurred in the presence of 30 mu g ml(-1) phenol. The proteome of L. monocytogenes cytosoluble proteins was slightly modified after 2-h incubation with 30 mu g ml(-1) phenol but no protein already characterized in response to other known stresses was induced, except the protease ClpP. Liquid smoke inhibited the haemolytic potential without affecting hly... |
| Tipo: Text |
Palavras-chave: Survival; Stress; Proteome analysis; Listeria monocytogenes; Liquid smoke; Haemolysis. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4522.pdf |
| |
|
|
| Mugnier, Chantal; Soyez, Claude. |
| The effect of different levels of dissolved oxygen (DO) and a decreased temperature combined with severe hypoxia were studied in the blue shrimp Litopenaeus stylirostris in relation to molt stage. In the first experiment, shrimps were submitted to DO concentrations of 5 to 1 mg l(-1). Osmoregulatory capacity (OC) was measured in shrimps at molt stage C after 6, 24, or 48 h of exposure. No mortality was recorded but a significant negative effect of DO concentration on hypo-OC was observed for DO concentrations below 3 mg l(-1). Osmoregulation improved after 48 h exposure, compared to 6 and 24 h exposure. In a second experiment, temperature was decreased from 28 to 22 degreesC in 24 h, before a severe hypoxia of 0.5+/-0.1 mg O-2 l(-1) was applied.... |
| Tipo: Text |
Palavras-chave: Temperature; Stress; Penaeid shrimp; Osmoregulation; Molt stage; Litopenaeus stylirostris; Hypoxia. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-372.pdf |
| |
|
|
| Porcionato, Marco Aurélio de Felicio; USP; Negrão, João Alberto; USP; Paiva, Fernanda Alves de; IFET; Delgado, Thiago Ferreira Gonçalves; UNESP. |
| Com o objetivo de avaliar a produção de leite, o leite residual e as respostas comportamentais de vacas Holandesas durante a ordenha, 14 vacas foram ordenhadas mecanicamente, duas vezes ao dia e avaliadas durante as seis primeiras semanas de lactação. A produção leiteira foi mensurada diariamente e o volume de leite residual, semanalmente. A temperatura de corpo (região das costelas), úbere e tetos e a frequência respiratória foram mensuradas duas vezes por semana. O comportamento dos animais na sala de ordenha foi registrado duas vezes por semana em etogramas e pelas entrevistas com os ordenhadores. Nas primeiras semanas de lactação, a porcentagem de coices, sobrepassos, derrubadas de teteira, micções e vocalizações observadas foram maiores para as vacas... |
| Tipo: Pesquisa de campo |
Palavras-chave: Adaptação; Comportamento; Ejeção do leite; Estresse Manejo de Animais adaptation; Behavior; Milk ejection; Stress. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6326 |
| |
|
|
| Padovan,C.M.; Guimarães,F.S.. |
| Rodents submitted to restraint stress show decreased activity in an elevated plus-maze (EPM) 24 h later. The objective of the present study was to determine if a certain amount of time is needed after stress for the development of these changes. We also wanted to verify if behavioral tolerance of repeated daily restraint would be detectable in this model. Male Wistar rats were restrained for 2 h and tested in the EPM 1, 2, 24 or 48 h later. Another group of animals was immobilized daily for 2 h for 7 days, being tested in the EPM 24 h after the last restraint period. Restraint induced a significant decrease in the percent of entries and time spent in the open arms, as well as a decrease in the number of enclosed arm entries. The significant effect in the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Stress; Restraint; Elevated plus-maze; Behavioral changes; Tolerance. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000100011 |
| |
|
| |
|
|
| Cozma,S.; Dima-Cozma,L.C.; Ghiciuc,C.M.; Pasquali,V.; Saponaro,A.; Patacchioli,F.R.. |
| Currently, the potential for cardiovascular (CV) stress-induced risk is primarily based on the theoretical (obvious) side effects of stress on the CV system. Salivary cortisol and α-amylase, produced respectively by the hypothalamus-pituitary-adrenal (HPA) axis and the sympathetic-adrenomedullary (SAM) system during stress response, are still not included in the routine evaluation of CV risk and require additional and definitive validation. Therefore, this article overviews studies published between 2010 and 2015, in which salivary cortisol and α-amylase were measured as stress biomarkers to examine their associations with CV/CMR (cardiometabolic risk) clinical and subclinical indicators. A comprehensive search of PubMed, Web of Science and Scopus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salivary stress biomarkers; Cardiometabolic risk (factors); Stress; Hypothalamic-pituitary-adrenal axis; Sympathetic adrenomedullary system. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000200201 |
| |
|
|
| Giaveno,Carlos Daniel; Miranda Filho,José Branco de. |
| Genetic improvement is a useful approach to increase aluminum tolerance in maize. This experiment was carried out to compare two screening techniques under greenhouse conditions and estimate the association between the results obtained for both bioassays with grain yield. Nutrient solution (NS) and pots with acid soil (AS) were utilized as screening methodologies to perform one cycle of divergent selection for aluminum tolerance in the tropical maize population SIKALQ. The four sub-populations obtained by both approaches were compared with the original and checks in a greenhouse and in multilocation field trials. Evaluation under the conditions of NS and AS showed that the populations with the best performances were those selected for aluminum tolerance... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Zea mays; Acid soils; Stress; Divergent selection. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000400028 |
| |
|
| |
|
|
| Genaro,G.; Schmidek,W.R.; Franci,C.R.. |
| Studies of behavior, endocrinology and physiology have described experiments in which animals housed in groups or in isolation were normally tested individually. The isolation of the animal from its group for testing is perhaps the most common situation used today in experimental procedures, i.e., there is no consideration of the acute stress which occurs when the animal is submitted to a situation different from that it is normally accustomed to, i.e., group living. In the present study, we used 90 male 120-day-old rats (Rattus norvegicus) divided into 5 groups of 18 animals, which were housed 3 per cage, in a total of 6 cages. The animals were tested individually or with their groups for exploratory behavior. Hormones were determined by radioimmunoassay... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Isolation; Group; Stress; Reproduction; ACTH; Luteinizing hormone; Corticosterone; Prolactin. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000600008 |
| |
| Registros recuperados: 187 | |
|
|
|
