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| Registros recuperados: 187 | |
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| Cunha,Mauro Alves da; Silva,Bruno Ferreira da; Delunardo,Frederico Augusto Cariello; Benovit,Simone Cristina; Gomes,Levy de Carvalho; Heinzmann,Berta Maria; Baldisserotto,Bernardo. |
| The aim of this study was to identify the times of anesthetic induction and recovery in slender seahorses (Hippocampus reidi) that were exposed to the essential oil of Lippia alba (EO), as well as the efficacy of EO as a stress-reducing agent in the transport of this species. Slender seahorses were placed in 1-L aquaria containing different concentrations of EO (0, 10, 20, 50, 150, 300 and 450 µL L-1), and after induction, fish were transferred to aquaria that were free of anesthetic to evaluate their recovery time. In an additional experiment, slender seahorses were transported in plastic bags with 15 µL L-1 of EO for 4 or 24 h. The increased concentration of EO proportionally decreased the time required for the induction of anesthesia. EO treatment (15... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood glucose; Leukocyte count; Seahorse; Stress. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300022 |
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| Tondolo,Juliana Simoni Moraes; Amaral,Lúcio de Paula; Simões,Larissa Novaes; Garlet,Quelen Iane; Schindler,Bianca; Oliveira,Teodoro Martins; Silva,Bruno Ferreira da; Gomes,Levy de Carvalho; Baldisserotto,Bernardo; Mallmann,Carlos Augusto; Heinzmann,Berta Maria. |
| This study analyzed the chemical composition and anesthetic potential of essential oil (EO) of Nectandra megapotamica in fat snook (Centropomus parallelus). For the extraction of EO by hydrodistillation, leaves were separated in young (EO-Y) or old (EO-O), and the chemical composition of the EOs was determined by CG-MS. The anesthetic potential was assessed by the evaluation of induction and recovery time of anesthesia and stress response from anesthesia and transport. Three experiments were carried out: i) four different concentrations of each EO were tested to evaluate anesthesia induction and recovery time; ii) two concentrations of EO-O were tested for the evaluation of its effects on stress parameters (glucose, lactate, and Na+ and K+ plasma levels)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Ionoregulation; Sedation; Stress; Terpenoids. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300667 |
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| Carneiro,Paulo César Falanghe; Kaiseler,Pedro Henriques da Silva; Swarofsky,Elaine de Azambuja Correia; Baldisserotto,Bernardo. |
| Fish transportation is a common practice on fish farms and is considered to be a stressor that could negatively affect fish health. The objective of this study was to evaluate several physiological responses of stress in jundiá caused by transport at different loading densities. Jundiá juveniles were placed in plastic bags on a mechanical transport simulator for four hours at four different loading densities (75, 150, 250 and 350 g L-1) and then transferred to sixteen 80-L plastic boxes for 96 hours after transport. Water samples were collected before and after transport to measure dissolved oxygen, temperature, pH and ammonia levels. Blood samples were taken at departure and arrival, as well as at 24 and 96 hours after transport to monitor cortisol,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stress; Cortisol; Glucose; Ammonia. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200021 |
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| Silva,Lenise de Lima; Silva,Daniela Thomas da; Garlet,Quelen Iane; Cunha,Mauro Alves; Mallmann,Carlos Augusto; Baldisserotto,Bernardo; Longhi,Solon Jonas; Pereira,Ana Maria Soares; Heinzmann,Berta Maria. |
| There is an increasing demand for inexpensive and safe anesthetics that can reduce fish stress caused by some procedures such as capture and handling. In this context, the present study evaluated the potential of essential oils (EO) of three Brazilian native plants (Hesperozygis ringens, Lippia sidoides and Ocotea acutifolia) as anesthetics for the silver catfish - Rhamdia quelen. Moreover, an analysis was made of the chemical composition of these oils and their influence on stress parameter. EO of H. ringens and O. acutifolia were effective as anesthetics, without behavioral side effects. EO of O. acutifolia (150 µL L-1) promoted an increase in blood glucose level. Regarding to the composition, pulegone accounts for 96.63% of the EO of H. ringens, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oil; Hesperozygis ringens; Lippia sidoides; Ocotea acutifolia; Stress. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200443 |
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| Penteado, Susete do Rocio Chiarello; Carpanezzi, Aparecido Antonio; Neves, Edinelson José Maciel; Santos, Álvaro Figueredo dos; Flechtmann, Carlos Alberto Hector. |
| Este é o primeiro registro do ataque de besouros (Curculionidae, Scolitinae), no Brasil, causando danos em plantios de nim, entre 7 e 10 anos, em Brejinho de Nazaré, Tocantins, constado em junho de 2009. Os insetos foram identificados como, Xylosandrus compactus (Eichhoff), Cryptocarenus diadematus Eggers, 1937 e Hypothenemus sp. Westwood, 1836. Os plantios atacados apresentavam crescimento abaixo do esperado para a região, baixa produção de sementes, desfolhamento acentuado e rebrota intensa nos ramos, seguida por morte de brotos jovens e/ou do ápice do ramo. A ação dos insetos provocou pontos de exsudação intensa de goma nos orifícios provocados. O fato tem similaridade com a síndrome denominada “declínio do nim”, relatada na África.doi:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Damage; Stress; Scolytinae; Ambrosia beetles; Azadirachta Danos; Estresse; Scolytinae; Besouros da ambrosia; Azadirachta.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/179 |
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| Rufino,Sâmara Raiany de Almeida; Azevedo,Rafael Alves de; Furini,Pamela Michéli; Campos,Mariana Magalhães; Machado,Fernanda Samarini; Pires,Maria de Fátima Avila; Lima,Juliana Aparecida Mello; Coelho,Sandra Gesteira. |
| Abstract: The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stress; Vocalization; Weaning. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000104310 |
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| Gomes,Rodrigo da Costa; Siqueira,Renata Farinelli de; Ballou,Michael Alan; Stella,Tiago Roberto; Leme,Paulo Roberto. |
| The objective of this work was to characterize the hematological profiles of steers and bulls, according to residual feed intake (RFI), after feed deprivation. Twenty‑month‑old Nellore steers and bulls were fed feedlot diets for 70 and 56 days, respectively. RFI was calculated as the difference between actual feed intake and expected feed intake. More and less efficient steers and bulls, according to RFI, were subjected to 24 hours of food deprivation. Blood was sampled prior to and following the withdrawal period. Hematological analyses included total and differential white blood cell count, red blood cell count and morphology, and plasma glucose concentration. Variation in RFI did not influence plasma glucose concentration or blood cell profiles. Glucose... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bos indicus; Fasting; Feed efficiency; Leukocytes; Stress. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000900019 |
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| AGOSTINETTO,D.; TAROUCO,C.P.; NOHATTO,M.A.; OLIVEIRA,C.; FRAGA,D.S.. |
| ABSTRACT Ryegrass is an annual cycle Poacea, often considered as a weed in wheat crops. The goal of this study was to analyze oxidative stress and enzyme activity of wheat and ryegrass cultures in response to stress caused by the competition between crop and weed, in two development stages. The experiment was conducted in completely randomized design, with eight replications, in replacement series, with a population of 64 plants per pot. Treatments consisted of proportions of ryegrass and wheat plants arranged in replacement series. The tested proportions were: 100/0 (pure wheat stand), 75/25, 50/50, 25/75 and 0/100% (pure ryegrass stand). The evaluated variables were: hydrogen peroxide (H2O2) content, thiobarbituric acid-reactive species (TBARS),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Lolium multiflorum; Stress; Competitiveness. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100233 |
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| Singh, Mahesh Kumar; Dobo, Erika. |
| This review describes that due to rapid globalization, vulnerability in different areas affects human life. With rapid population growth, securing the inherent vulnerability of this relationship, whether social, economic, or environmental, has to be central to efforts to achieving sustainable development. The vulnerability of agricultural systems varies with geographic location, time, socioeconomic conditions, and environmental resources. The capacity to mitigate and to adapt to climate-change impacts is strongly related to the future development paths. The socioeconomic and, even more so, the technological characteristics of different futures strongly affect emissions, hence the extent and pace of the impacts of climate change, as well as the capability... |
| Tipo: Journal Article |
Palavras-chave: Climate change; Vulnerability; Adaptivity; Food security; Stress; Agricultural and Food Policy; Environmental Economics and Policy; Farm Management. |
| Ano: 2007 |
URL: http://purl.umn.edu/58907 |
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| Pereira,REP; Martins,MRFB; Mendes,AA; Almeida,PAZ ICL; Komiyama,CM; Milbradt,EL; Fernandes,BC da S. |
| The Brazilian Ministry of Agriculture (MAPA) regulations establish 12 hours as the maximum pre-slaughter fasting period for broilers; however, many processing plants have considered this time is not sufficient, and consequently return the birds to the farms, with consequent economic losses and welfare problems. Therefore, it is necessary to investigate the possible effects of longer pre-slaughter fasting times. The objective of the present study was to evaluate the effect of pre-slaughter fasting times longer than those established by MAPA on broiler welfare, breast meat quality, and intestinal integrity. Forty 42-d-old broilers were submitted to different pre-slaughter fasting times: group I: 6 hours, group II 9h, group III 12h, and group IV 15h. Bird... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler industry; Stress; Intestinal morphology; Intestinal morphometrics. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200007 |
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| 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 |
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| Arruda,JNT; Mendes,AS; Guirro,ECBP; Schneider,M; Sikorski,RR; Sausen,L; Dias,ER; Bonamigo,DV. |
| Abstract This study evaluated the performance, carcass yield and quality, and physiological stress indicators of broilers of three genetic strains reared at three housing densities for 29 days. A total of 828 day-old male chicks, with average initial weight of 40.0± 2.0g were used. Three genetic strains (Cobb 500, Ross 808, and Ross 508, with 276 birds each) and three housing densities (17, 19, and 21 broilers/m²) were tested. A completely randomized experimental design in a 3 x 3 factorial arrangement, with four replicates of 23 birds each, was applied. The following responses were evaluated: performance parameters (average weekly body weight, average daily gain, feed intake, feed conversion ratio), physiological stress indicators (blood glucose levels,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood count; Poultry industry; Live performance; Stress. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100141 |
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| Oka,CH; Bueno,LGF; Souza,SRL; Balan,JAO; Silva,KM; Polycarpo,GV; Iwayama,LH. |
| ABSTRACT Among the several factors required in breeding laying hens, debeaking is a factor that interferes with batch performance and affects animal welfare. Thus, the objective of this study was to evaluate three different debeaking procedures and to verify the best technique to be used. For this, the performance of the birds, the incidence of cannibalism, and in rearing phase, the quality of the eggs were evaluated. Dekalb White birds were distributed in a completely randomized design with three treatments, T1 (infrared radiation debeaking) T2 (hot blade debeaking) and T3 (V debeaking).The data was submitted to Analysis of Variance and compared by Tukey’s test (95%), using statistical software R. The frequencies of mortality and cannibalism were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal welfare; Behavior; Stress; Egg quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400717 |
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| Khazaei,R; Requena,F; Seidavi,A; Martínez,AL. |
| ABSTRACT The effects of vitamins E and C supplementation on growth performance and biochemical and haematological parameters of Japanese quail were studied. A total of 360 one-day-old Japanese female quails were randomly allocated to nine dietary treatment groups (10 birds per replicate and 4 replicates per treatment), including a control (basal diet) and the basal diet supplemented with: 250 or 500 mg/kg of vitamin C, 250 or 500 mg/kg of vitamin E, 250 mg/kg of both vitamins E and C, 250 and 500 mg/kg of vitamins E and C, 500 and 250 mg/kg of vitamins E and C, and 500 mg/kg of both vitamins E and C. Vitamin supplementation improved productive parameters and raised the blood plasma levels of protein, thyroid-stimulating hormone, calcium and phosphorus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Quail; Stress; Vitamin. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000200301 |
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| ABREU,NATÁLIA DO COUTO; BARBOSA,SUZANA MARQUES; GURGEL,ELY SIMONE CAJUEIRO; CARVALHO,WENDELL VILHENA DE. |
| ABSTRACT Garcinia madruno (Kunth) Hammel is a neotropical tree that naturally occurs in terra firme forests and is important as a source of income and medicine for Amazonian populations. This study describes and compares the morphoanatomical responses of plants under conditions of stress and normoxia. Young plants of Garcinia madruno were subjected to two water regimes: daily controlled irrigation and waterlogged for 84 days. Hypertrophic lenticels, adventitious roots and anatomical characteristics of the roots and leaves were evaluated on days 0, 21, 42, 63 and 84. There were no changes in leaf structure, but cracks and hypertrophic lenticels appeared on the stems, there was an increase in blackness of the roots and the plants formed adventitious roots to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Bacurizinho; Stress; Fruit; Histochemistry. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500201 |
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| Silva,Mirian de Sousa; Brommonschenkel,Sérgio Hermínio; Faria,José Márcio Rocha; Borges,Eduardo Euclydes de Lima e. |
| The objective of this study was to partially characterize some genes involved in the desiccation tolerance of the embryonic axis of Melanoxylon brauna seeds subjected, or not, to oven fast-drying. Seeds were initially dried rapidly in an oven at 40 ºC, 50 ºC, 60 ºC, 70 ºC, and 80 °C, for 24, 48 and 72 h and then subjected to germination tests and moisture content determination. Degenerate primers were designed for 19 genes. The CDNA was used as a template for PCR amplifications using the degenerate primers, and the PCR products obtained were purified, cloned and sequenced. The seeds showed a gradual reduction in percent germination with increasing temperature and drying time. Nucleotide sequences of the cloned fragments related to genes CAT1, SPS1, Abi5,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water; Stress; Drying; Sequencing. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000100004 |
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| Registros recuperados: 187 | |
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