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| Registros recuperados: 23 | |
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| 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... |
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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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| 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... |
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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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| 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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| 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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| LIMA,Adriana Ferreira; OLIVEIRA,Hyago Jovane Borges de; PEREIRA,André Silvério; SAKAMOTO,Silmara Sanae. |
| ABSTRACT We assessed the effect of stocking density on physiological parameters (blood lactate, glucose, cortisol, hematocrit), water quality (temperature, dissolved oxygen, pH, unionized ammonia, carbon dioxide), and survival during the transportation of fingerling (24.5 ± 4.7 g) and juvenile (615.8 ± 122.2 g) pirarucu (Arapaima gigas) for six hours in plastic bags. The tested densities were 65, 80, 95, 110 and 125 g L-1 for fingerlings, and 50, 80, 110, 140 and 170 g L-1 for juveniles (three replicates each). Parameters were measured prior to and immediately after transportation, and at 24 and 96 hours recovery after transportation. No mortality was observed, except for fingerlings (< 3%) at densities of 110 and 125 g L-1 during recovery. All the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arapaima gigas; Closed system; Lactate; Cortisol; Glucose. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300223 |
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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| Registros recuperados: 23 | |
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