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Biochemical changes in Salminus brasiliensis due to successive captures and stocking densities - doi: 10.4025/actascibiolsci.v35i1.13055 Biological Sciences
Braun, Neiva; Universidade Federal de Santa Catarina; Lima, Ronaldo Lima de; Universidade Federal de Santa Catarina; Baldisserotto, Bernardo; Universidade Federal de Santa Maria; Dafre, Alcir Luiz; Universidade Federal de Santa Catarina; Nuñer, Alex Pires de Oliveira; Universidade Federal de Santa Catarina.
This study evaluated the biochemical changes associated to successive captures of Salminus brasiliensis reared at different stocking densities. The experiment was conducted in tanks with a capacity of 1,000 L, connected to a recirculating system with temperature control and continuous aeration. Fish were stocked at densities of 30, 150 and 300 fish m-3 and the successive catches were applied at the end of the experimental period of 80 days. The biochemical changes were evaluated at the end of the trial through the parameters: hematocrit, hemoglobin, glucose and lactate in plasma and Na+, K+ and Cl- and Ca2+ in the gills. The concentration of glucose increased with the increase of stocking density as also registered for lactate concentration, except for...
Palavras-chave: Zoologia; Fisiologia; Bioquímica dourado; Hematocrit; Hemoglobin; Glucose; Lactate; Ions.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/13055
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Blood lactate threshold reflects glucose responses in horses submitted to incremental exercise test Arq. Bras. Med. Vet. Zootec.
Ferraz,G.C.; D’Angelis,F.H.F.; Teixeira-Neto,A.R.; Freitas,E.V.V.; Lacerda-Neto,J.C.; Queiroz-Neto,A..
Determinou-se, em eqüinos, o efeito do treinamento sobre as concentrações sangüíneas de lactato e plasmáticas de glicose durante exercício de intensidade progressiva em esteira rolante. Demonstrou-se que o treinamento aeróbico causou diminuição da concentração máxima de lactato e que o limiar de lactato corresponde ao ponto de inflexão da curva de glicose plasmática, confirmando esse parâmetro como indicador da capacidade aeróbica de cavalos.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Horse; Aerobic training; Lactate; Glucose; Performance.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100035
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Classification of Bovine Follicles Based on the Concentrations of Steroids, Glucose and Lactate in Follicular Fluid and the Status of Accompanying Follicles OAK
NISHIMOTO, Hiromi; HAMANO, Seizo; HILL, Glen Alan; MIYAMOTO, Akio; TETSUKA, Masafumi; 宮本, 明夫; 手塚, 雅文.
A simple and clear means to identify the physiological status of follicles is essential for study of follicular biology. In the present study, we verified a novel classification procedure based on analysis of the follicular population and glucose concentration in follicular fluid (FF) as an alternative method to classify bovine follicles. Paired ovaries were collected from heifers, and the number of follicles and stage of the CL were recorded. Follicles were initially divided into the following 3 groups according to diameter and the ratio of E2 and P4 (E/P): E2 active (E-A: E/P≥1), E2 inactive (E-I: E/P<1, ≥8.5 mm) and small follicles (E/P<1, <8.5 mm). E-A follicles were easily identified as E2-rich dominant follicles and were further classified...
Palavras-chave: Bovine; Follicular fluid; Follicle classification; Glucose; Lactate; Steroid.
Ano: 2009 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2828
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Determinação do pico da lactemia de cavalos pantaneiros após exercício de alta intensidade no Pantanal. Repositório Alice
AGUILAR, M. R.; SANTOS, S. A.; AVELLAR, A. L. F. de.; JULIANO, R. S.; PIOVEZAN, U.; EGITO, A. A. do; ABREU, U. G. P. de.
Este trabalho teve como objetivo avaliar o pico da lactatemia de cavalos Pantaneiros. Para tanto, foi realizada uma prova com cinco animais, submetidos a exercício de alta intensidade em condições de alta temperatura no Pantanal, e colhidas amostras para dosagem de lactato durante o período de recuperação após o esforço físico. Os resultados encontrados sugerem a interferência de fatores como condicionamento físico e idade no tempo de exportação do lactato da musculatura para a corrente sanguínea. A determinação do pico do lactato sanguíneo após exercícios de máximo esforço pode ser uma importante ferramenta nos programas de seleção e melhoramento de cavalos Pantaneiros, baseados em critérios funcionais, assim como nos programas de treinamento e...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Fisiologia do exercício; Llactato; Prova de resistência; Endurance proof; Exercise phisiolology; Lactate.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/812694
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Distance exercised during submaximal training on race winnings for Thoroughbred racehorses Ciência Rural
Berkman,Carolina; Teixeira,Luisa Gouvea; Pereira,Marsel Carvalho; Sampaio,Rita de Cássia de Lima; Bernardi,Nara Saraiva; Lacerda Neto,José Correia de; Queiroz Neto,Antonio de; Ferraz,Guilherme de Camargo.
Evaluations of the physical fitness of Thoroughbred racehorses have been correlated with race earnings, but few reports exist about the influence of the distance exercised during training on both physical conditioning indices and financial productivity. During one training season sixteen claiming Thoroughbred horses were subjected to submaximal training and monitored by a global positioning system (GPS) coupled to a heart rate monitor. After initial and single monitoring, the horses were distributed into two groups of eight individuals each; one group exercised short distances (SD) between 1600 and 1900m, while the other exercised long distances (LD) between 2000 and 2350m. The duration (min) and mean and maximal velocities (ms-1)attained during each...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Horse; Distance exercised; Heart rate; Lactate; Race performance; Race earnings.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701268
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Effect of age and gender on sweat lactate and ammonia concentrations during exercise in the heat BJMBR
Meyer,F.; Laitano,O.; Bar-Or,O.; McDougall,D.; Heigenhauser,G.J.F..
The dependence of sweat composition and acidity on sweating rate (SR) suggests that the lower SR in children compared to adults may be accompanied by a higher level of sweat lactate (Lac-) and ammonia (NH3) and a lower sweat pH. Four groups (15 girls, 18 boys, 8 women, 8 men) cycled in the heat (42ºC, 20% relative humidity) at 50% VO2max for two 20-min bouts with a 10-min rest before bout 1 and between bouts. Sweat was collected into plastic bags attached to the subject's lower back. During bout 1, sweat from girls and boys had higher Lac- concentrations (23.6 ± 1.2 and 21.2 ± 1.7 mM; P < 0.05) than sweat from women and men (18.2 ± 1.9 and 14.8 ± 1.6 mM, respectively), but Lac- was weakly associated with SR (P > 0.05; r = -0.27). Sweat Lac-...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sweat pH; Electrolytes; Ammonia; Lactate.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000100017
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Effect of low or high stress in pre-slaughter handling on pig carcass and meat quality R. Bras. Zootec.
Peres,Louise Manha; Bridi,Ana Maria; Silva,Caio Abércio da; Andreo,Nayara; Tarsitano,Marina Avena; Stivaletti,Evelyn Leticia Tazima.
The objective of this study was to evaluate the consequences of low or high stress during pre-slaughter handling of pigs on their carcass and meat quality. Forty-four animals of a commercial lineage, with an average weight of 107.23±5.23 kg, were used. At lairage the animals were randomly divided into two groups, the least and the most stressed. At slaughter, during bleeding, blood samples were collected for later cortisol and lactate tests. Forty-five minutes after slaughter the initial pH of th carcasses was measured and samples of the semitendinosus muscle were collected for R-value calculation. After 24 hours of cooling, the final pH was measured, damage scores were assessed and samples of the longissimus dorsi muscle were collected to evaluate drip...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass damage score; Cortisol; Lactate; Lipid oxidation; PH; R-value.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000700363
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Effect of propionic and lactic acids on in vitro ruminal bacteria growth R. Bras. Zootec.
Oliveira,Juliana Silva de; Queiroz,Augusto César de; Mantovani,Hilário Cuquetto; Melo,Marcelo Rodrigues de; Detmann,Edenio; Santos,Edson Mauro; Bayão,Geraldo Fábio Viana.
The objective of this work was to evaluate the effect of the levels of lactic and propionic acids on in vitro fermentation of ruminal microorganisms. In experiment 1, the levels, in a total of 12 were the following: addition of 0 (control 1), 50, 100, 150, 200 and 250 mM of lactic acid and 0 (control 2), 50, 100, 150, 200 and 250 mM of propionic acid, respectively, in incubation flasks, which contained ruminal inoculum, glucose and synthetic culture medium, with two repetitions for each combination. In experiment 2, the combinations, in a total of 4, were the following: presence of 12 and 24 mM of propionic acid and 0 mg of glucose, respectively; presence of 12 and 24 mM of propionic acid and 40 mg of glucose, respectively, to the incubation flasks which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactate; Food additive; Propionate; Ruminal manipulation.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500025
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Effects of caffeine on time to exhaustion in exercise performed below and above the anaerobic threshold BJMBR
Denadai,B.S.; Denadai,M.L.D.R..
Controversy still exists concerning the potential ergogenic benefit of caffeine (CAF) for exercise performance. The purpose of this study was to compare the effects of CAF ingestion on endurance performance during exercise on a bicycle ergometer at two different intensities, i.e., approximately 10% below and 10% above the anaerobic threshold (AT). Eight untrained males, non-regular consumers of CAF, participated in this study. AT, defined as the intensity (watts) corresponding to a lactate concentration of 4 mM, was determined during an incremental exercise test from rest to exhaustion on an electrically braked cycle ergometer. On the basis of these measurements, the subjects were asked to cycle until exhaustion at two different intensities, i.e.,...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Caffeine; Anaerobic threshold; Endurance; Lactate; Perceived exertion.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000400017
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Evaluation of anaerobic threshold in non-pregnant and pregnant rats Anais da ABC (AABC)
NETTO,ALINE OLIVEIRA; MACEDO,NATHÁLIA C.D.; GALLEGO,FRANCIANE Q.; SINZATO,YURI K.; VOLPATO,GUSTAVO T.; DAMASCENO,DÉBORA C..
ABSTRACT Several studies present different methodologies and results about intensity exercise, and many of them are performed in male rats. However, the impact of different type, intensity, frequency and duration of exercise on female rats needs more investigation. From the analysis of blood lactate concentration during lactate minimum test (LacMin) in the swimming exercise, the anaerobic threshold (AT) was identified, which parameter is defined as the transition point between aerobic and anaerobic metabolism. LacMin test is considered a good indicator of aerobic conditioning and has been used in prescription of training in different exercise modalities. However, there is no evidence of LacMin test in female rats. The objective was to determine AT in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exercise; Swimming; Anaerobic threshold; Lactate; Pregnancy; Rats.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602749
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Evaluation of microorganisms with sulfidogenic metabolic potential under anaerobic conditions BABT
Sakamoto,Isabel Kimiko; Maintinguer,Sandra Imaculada; Hirasawa,Julia Sumiko; Adorno,Maria Angela Tallarico; Varesche,Maria Bernadete Amâncio.
The aim of this work was to identify groups of microorganisms that are capable of degrading organic matter utilizing sulfate as an electron acceptor. The assay applied for this purpose consisted of running batch reactors and monitoring lactate consumption, sulfate reduction and sulfide production. A portion of the lactate added to the batch reactors was consumed, and the remainder was converted into acetic, propionic and butyric acid after 111 hours of operation These results indicate the presence of sulfate-reducing bacteria (SRB) catalyzing both complete and incomplete oxidation of organic substrates. The sulfate removal efficiency was 49.5% after 1335 hours of operation under an initial sulfate concentration of 1123 mg/L. The SRB concentrations...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sulfate-reducing bacteria; Lactate; Most Probable Number; Organic acids.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500018
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Evaluation of Physiological Parameters of Broilers with Dorsal Cranial Myopathy Rev. Bras. Ciênc. Avic.
Amaral,PC; Zimermann,C; Santos,LR; Noro,M; Prá,MD; Pilotto,F; Rodrigues,LB; Dickel,EL.
ABSTRACT There are several causes of carcass condemnation in poultry processing plants, including dorsal cranial myopathy (DCM), in which the anterior latissimus dorsi (ALD) muscle is affected. DCM etiology has not been elucidated yet, but this lesion impairs the visual quality of carcasses and causes economic losses due to downgrading and condemnation. The effects of this lesion on the systemic health of broilers are still unknown. In this context, the objective of this study was to evaluate muscle injury and systemic health indicators in broilers presenting or not DCM. The following parameters were evaluated: complete blood count (CBC), total protein, albumin, globulin, cholesterol, lactate, and glucose serum levels, aspartate aminotransferase (AST) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aspartate aminotransferase; Complete blood count; Creatine kinase; Lactate; Muscle injury.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100069
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Evaluation of whey fermented by Enterococcus faecium in consortium with Veilonella parvula in ruminant feeding R. Bras. Zootec.
Oliveira,Juliana Silva de; Queiroz,Augusto César de; Mantovani,Hilário Cuquetto; Bayão,Geraldo Fábio Viana; Detmann,Edenio; Santos,Edson Mauro; Silva,Thiago Carvalho da.
The objective of this study was to evaluate the whey fermented by Enterococcus faecium in consortium with Veilonella parvula on the in vitro growth of ruminal bacteria and as a supplement in the cattle diet. In the in vitro experiment, a randomized design, with the following combinations was used: ruminal bacteria; ruminal bacteria and inactive whey; ruminal bacteria and active whey; and active whey. In the in vivo experiment, five fistulated Zebu Holstein-Zebu crossbred heifers were distributed in a 5 × 5 Latin square. Supplements were formulated without the addition of whey, with the addition of two levels of unfermented whey (2.5 and 5 L/day) or two levels of fermented whey (2.5 and 5 L/day). A positive effect of the whey fermentation was detected on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactate; Organic acids; Propionic acid; Rumen.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100025
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Exercise training session-induced metabolic acidosis in barrel racing horses Ciência Rural
Gomes,Cláudio Luís Nina; Alves,Andressa Mendes; Ribeiro Filho,José Dantas; Moraes Junior,Felipe de Jesus; Chaves,Ricardo de Macedo; Aranha,Rosany Maria Cunha; Fucuta,Rodrigo Santos; Ribeiro,Bruna Maria.
ABSTRACT: In horses, acid-base balance disorders are common after intense exercise, with metabolic acidosis being the most common after high intensity and short duration exercise. Understanding the processes that cause them is fundamental for procedures, which aimed to improve the physical fitness of horses for athletic purposes, with fewer changes in homeostasis. The present study assessed the effect of barrel racing on acid base balance in Quarter Horse, at the following times: T0 - immediately before training; T1 - immediately after the end of the second course; T2 - one hour after the end of the second course. In T1, there was decrease (P<0.05) in the pH, HCO3 -, pCO2, cBase, tCO2 and strong ion difference concentrations, while the plasma lactate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Horse; Exercise; Acidosis; Lactate; Barrel racing.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500601
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Growth and stress of dourado cultivated in cages at different stocking densities PAB
Braun,Neiva; Dafre,Alcir Luiz; Lima,Ronaldo Lima de; Beux,Luis Fernando; Brol,Fernanda Franciele; Nuñer,Alex Pires de Oliveira.
The objective of this work was to evaluate the growth and the stress levels of juvenile dourado (Salminus brasiliensis) cultivated in cages. Fish stocked at densities of 15 (D15) and 30 (D30) fish per square meter were evaluated in a completely randomized design with three replicates. Fish were fed twice a day with extruded ration (42% crude protein). Density influenced only biomass and daily food intake, and glucose and lactate concentrations increased over time. D15 and D30 did not influence the growth of dourado. However, the increase of glucose and lactate levels over time indicates that cultivation in cages is a stressful condition for this species.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Salminus brasiliensis; Glucose; Hematocrit; Hemoglobin; Lactate.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800053
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Hematological and biochemical characteristics during the transport of dog snapper Lutjanus jocu (Perciformes: Lutjanidae) Neotropical Ichthyology
Oliveira,Bruno L.; Souza,Rodrigo M.; Silva Filho,Jorge P.; Gomes,Levy C.; Fernandes,Luiz F. Loureiro.
ABSTRACT The objective of this study was to evaluate stress responses in dog snapper (Lutjanus jocu) during transport by evaluating their hematological and biochemical responses. Twenty-five wild dog snapper specimens were used in the experiment (220 ± 68 g and 24.5 ± 2.5 cm total length). Blood samples were collected prior to transport (control), and fish were placed in two transport boxes, one with anesthetic and one without anesthetic. Immediately after transport and after 24 h, blood was collected from the fish that underwent each treatment (with anesthetic and without anesthetic). Biochemical and hematological results demonstrated the inefficiency of benzocaine as a stress reliever during handling and transport. Biochemical parameters revealed the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anesthetic; Benzocaine; Glucose; Lactate; Marine fish.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100219
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Ingestion of a moderate dose of alcohol enhances physical exercise-induced changes in blood lactate concentration BJMBR
Teixeira-Coelho,F.; Santos,D.F.C.; Santos,G.A.; Sousa,T.F.; Moreira,S.R.; Souza,M.V.C.; Wanner,S.P..
The consumption of alcoholic beverages influences carbohydrate and lipid metabolism, although it is not yet clear whether metabolism during physical exercise at different intensities is also affected. This was the objective of the present study. Eight young and healthy volunteers performed a treadmill test to identify the running speed corresponding to a lactate concentration of 4 mM (S4mM). At least 48 h later, they were subjected to two experimental trials (non-alcohol or alcohol) in which they performed two 1-km running sessions at the following intensities: 1) S4mM; 2) 15% above S4mM. In both trials, blood lactate, triglycerides, and glucose concentrations were measured before and after exercise. The acute alcohol intake increased triglycerides, but...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endurance; Ethanol; Glucose; Lactate; Metabolism; Treadmill running.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400601
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Lactate-upregulation of lactate oxidation complex-related genes is blunted in left ventricle of myocardial infarcted rats BJMBR
Gabriel-Costa,D.; Cunha,T.F.; Paixão,N.A.; Fortunato,R.S.; Rego-Monteiro,I.C.C.; Barreto-Chaves,M.L.M.; Brum,P.C..
Lactate modulates the expression of lactate oxidation complex (LOC)-related genes and cardiac blood flow under physiological conditions, but its modulatory role remains to be elucidated regarding pathological cardiac stress. The present study evaluated the effect of lactate on LOC-related genes expression and hemodynamics of hearts submitted to myocardial infarction (MI). Four weeks after MI or sham operation, isolated hearts of male Wistar rats were perfused for 60 min with Na+-lactate (20 mM). As expected, MI reduced cardiac contractility and relaxation with no changes in perfusion. The impaired cardiac hemodynamics were associated with increased reactive oxygen species (ROS) levels (Sham: 19.3±0.5 vs MI: 23.8±0.3 µM), NADPH oxidase (NOX) activity (Sham:...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactate; Lactate oxidation complex; Myocardial infarction; Gene expression; Perfusion pressure; Oxidative stress.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018001100605
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Long-term creatine supplementation improves the aerobic capacity of horses Ciência Rural
Ferraz,Guilherme de Camargo; Teixeira-Neto,Antônio Raphael; D’Angelis,Flora Helena de Freitas; Lacerda-Neto,José Corrêa de; Queiroz-Neto,Antonio de.
The aim of the present study was to investigate the effect of long-term oral supplementation of creatine on the physiological responses to aerobic training. Twelve purebred Arabian horses were submitted to aerobic training for 90 days, with and without creatine supplementation which consisted of the daily administration of 75g of creatine monohydrate mixed into the ration for 90 days of training. Physical conditioning was conducted on a high performance treadmill and training intensity was stipulated by calculating the V4 (velocity at which blood lactate reaches 4mmol L-1) determined monthly for each animal. The individual intensity of physical force at 80% of aerobic threshold was established. An incremental exercise test was used to set the individual...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Equine; Creatine; Lactate; Hematology; Athletic performance.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000200023
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Low dissolved oxygen levels increase stress in piava (Megaleporinus obtusidens): iono-regulatory, metabolic and oxidative responses Anais da ABC (AABC)
COPATTI,CARLOS E.; BOLNER,KEIDI C.S.; LONDERO,ÉRIKA P.; ROSSO,FELIPE L. DE; PAVANATO,MARIA A.; BALDISSEROTTO,BERNARDO.
Abstract: The aquatic environment presents daily and/or seasonal variations in dissolved oxygen (DO) levels. Piava faces different DO levels in the water due to its distributional characteristics. The goal of this study was to describe the effects of low DO levels on plasma ion, biochemical and oxidative variables in piava juveniles. Fish were exposed to different DO levels, including 1.0, 2.0, 3.0, 4.0 and 5.0 mg L-1 of DO for 96 h, after which blood and tissue samples (liver, kidney, gill and muscle) were collected. The decrease in DO levels decreased plasma Na+, Cl-, K+ and NH3 levels as well as protein and glycogen levels in the liver, kidney and muscle; increased Na+/K+-ATPase activity in the gills and kidney as well as glucose and ammonia levels in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Iono-regulatory; Glucose; Lactate; Na+; K+-ATPase activity; Oxidative stress.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500858
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