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| Registros recuperados: 18 | |
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| Dosdat, Antoine; Metailler, Robert; Desbruyeres, Elisabeth; Huelvan, Christine. |
| Brown trout and rainbow trout (average weight 100 g) were reared in fresh water at 12 degrees C under the same conditions before transferring brown trout to sea water, in order to compare phosphorus utilisation in both species. Apparent phosphorus availability, orthophosphate excretion and phosphorus accretion in the fish were directly determined. Thus, actual phosphorus mass balance was built. Rainbow trout raised in fresh water had a higher phosphorus retention coefficient (maximum 50 %) than brown trout reared in fresh water (maximum 45 %). Transferring brown trout to sea water induced a reduction in phosphorus retention (maximum 39 %), Orthophosphate excretion, ranging 7-20 mg phosphorus per kg wet weight per day, represented 10-20 % of ingested... |
| Tipo: Text |
Palavras-chave: Oncorhynchus mykiss; Salmo trutta; Excrétion; Digestibilité; Phosphore; Oncorhynchus mykiss; Salmo trutta; Excretion; Digestibility; Phosphorus intake. |
| Ano: 1998 |
URL: https://archimer.ifremer.fr/doc/1998/publication-876.pdf |
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| Tulli, F; Vachot, Christianne; Tibaldi, E; Fournier, Vincent; Kaushik, Sadasivam. |
| The role of dietary arginine in affecting nitrogen utilisation and excretion was studied in juvenile European sea bass (Dicentrarchus labrax) fed for 72 days with diets differing in protein sources (plant protein-based (PM) and fish-meal-based (FM)). Fish growth performance and nitrogen utilisation revealed that dietary Arg surplus was beneficial only in PM diets. Dietary Arg level significantly affected postprandial plasma urea concentrations. Hepatic arginase activity increased (P < 0.05) in response to dietary Arg surplus in fish fed plant protein diets; conversely ornithine transcarbamylase activity was very low and inversely related to arginine intake. No hepatic carbamoyl phosphate synthetase III activity was detected. Dietary arginine levels did... |
| Tipo: Text |
Palavras-chave: Dicentrarchus labrax; Sea bass; Excretion; Arginase; Urea; Arginine. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-6317.pdf |
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| Gauquelin, F; Cuzon, Gerard; Gaxiola, G; Rosas, C; Arena, L; Bureau, D; Cochard, Jean-claude. |
| A study was conducted using a bioenergetics approach to generate information on energy requirement and feed utilization of Litopenaeus stylirostris. Animals (initial mean weight 21 +/- 1 g were fed ad libitum six experimental diets, ranging from 25 to 58% crude protein (CP), for 50 days. Weight gain increased from 21 to 30 g with increasing dietary protein level. Survival rates averaged 80%. Basal metabolism (HeE) and heat increment of feeding (HiE) were monitored using respirometry. HeE was on average I U shrimp(-1) day(-1) or 47 U kg live weight(-1) day (22 kJ/kg(0.8). d(-1)), slightly more than what is observed in fish. HiE averaged 0.2 W/sbrimp(-1) day(-1) or 10 W kg live weight(-1) day(-1) (4 kJ/kg(0.8) d(-1)). It represented 3 1 % and 12%... |
| Tipo: Text |
Palavras-chave: Respiration; Excretion; Growth; Dietary protein; L. stylirostris. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-6263.pdf |
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| Su, Zhenxia; Yan, Yan; Huang, Liangmin. |
| Biofouling is a particular problem in the pearl oyster culture. It may reduce the growth and survival rates of the cultured species. Foulers are often themselves filter feeders, and are therefore potential competitors for food resource with the cultured species. Fouling organisms may also reduce the oxygen supply. A study was conducted to measure the impact of foulers on feeding, oxygen consumption, and waste excretion. POM, ammonia, phosphate and oxygen concentration were measured in various treatments (cultured species，foulers). This study showed that fouling organisms had significant effect on food uptake, oxygen consumption and waste excretion. The clearance rate, ammonia and phosphate release rate, oxygen consumption rate of the fouled pearl oyster... |
| Tipo: Journal Contribution |
Palavras-chave: Pearl oysters; Foulers; Oxygen consumption; Excretion. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/5861 |
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| Pacheco,W. A.; Genovez,M. E.; Pozzi,C. R.; Silva,L. M. P.; Azevedo,S. S.; Did,C. C.; Piatti,R. M.; Pinheiro,E. S.; Castro,V.; Miyashiro,S.; Gambarini,M. L.. |
| This paper aimed to determine the excretion period of B19 vaccine strain during a complete reproductive cycle (from estrus synchronization, artificial insemination, pregnancy and until 30 days after parturition) of dairy cows from 3 to 9 years old that were previously vaccinated from 3 to 8 months. Three groups were monitored with monthly milk and urine collection during 12 months: G1 with seven cows from 3 to 4 years old; G2 with three cows from 5 to 6 years old; and G3 with four cows from 7 to 9 years old. Urine and milk samples were submitted to bacteriological culture and urine and PCR reactions for detection of Brucella spp. and PCR-multiplex for B19 strain identification. Ring test (RT) was also performed in the milk samples, and serum samples were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine brucellosis; Vaccination; B19 vaccine; Excretion. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200022 |
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| Lemarie, Gilles; Martin, Jean-louis; Dutto, Gilbert; Garidou, C. |
| A study on nitrogenous and phosphorous waste production in European seabass (Dicentrarchus labrax) was carried out in a flow-through land-based farm. The main objectives were (i) to calculate nitrogenous (N) and phosphorous (P) waste production (particulate and dissolved) from in situ measurements for different rearing ponds with specific fish biomasses, fish sizes and flow rates, (ii) to establish nitrogenous and phosphorous waste production budgets, ratios and equations, and (iii) to compare, for the whole farm, in situ measurements to estimate N and P waste production from waste equations. Waste production was manifest by an increase in concentrations of total ammonia nitrogen, total Kjeldhal nitrogen, particulate nitrogen, dissolved phosphorus and... |
| Tipo: Text |
Palavras-chave: Fish farm waste; Excretion; Nitrogenous budget; Phosphorous budget; Dicentrarchus labrax. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/1998/publication-872.pdf |
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| Bock,Claudio Luiz; Pezzato,Luiz Edivaldo; Cantelmo,Osmar Angelo; Barros,Margarida Maria. |
| This research was carried out to compare the effect of phytase on performance, in the incorporation and excretion phosphorus in Nile tilápia. Four diets were used: one standard (contol), composed by 3,200 DE kcal ED/kg of ration and 30.0% CP and supplemented with phosphorus (4.0% of dicalcium phosphate), considering the treatment control, and others three, without phosphorus supplementation, with different phytase levels (1,000, 1,500, and 2,000 uf/kg), with four replication, per a period of 82 days. Circular tanks of fiber glass, with constant flow and aeration were used. The results demonstrated that the use of phytase in diets for fish production can reduce the levels of inorganic phosphorus in the diets and minimizing the impacts caused by phosphorus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Excretion; Fish; Growth; Oreochromis niloticus; Phosphorus; Pollution. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000700001 |
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| Lesel, R; Fauconneau, B; Alzieu, P. |
| The present study concerns bacterial transit in the digestive tract of rainbow trout at 13 degree C and compares fecal excretion of 4 tracers in the alimentary bolus, an inert bacterial tracer: spores of Bacillus stearothermophilus , a bacterial marker capable of multiplying in the digestive organs: Citrobacter freundii ; a tracer of the liquid phase: polyethylene glycol (PEG), a tracer of the solid phase: Cr sub(2)O sub(3). Two peaks of fecal excretion of bacterial bodies are indicated in the results, the first one taking place within the first 4 h following ingestion of the traced meal, the second peak, a hundred times more important, occurring 10 h after the meal. This two-phase mode of excretion corroborates the observations previously made. The... |
| Tipo: Text |
Palavras-chave: Citrobacter freundii; Bacillus stearothermophilus; Bacteria; Excretion; Tracer techniques. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-995.pdf |
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| Medale, Francoise; Boujard, Thierry; Vallee, Frédéric; Blanc, Denise; Mambrini, Muriel; Roem, Arjen; Kaushik, Sadasivam. |
| High energy extruded diets were formulated to contain the same level of protein supplied either by soy protein concentrate (SPC) or fish meal. Three experiments were performed in order to measure voluntary feed intake and feed waste, faecal losses and soluble losses of nitrogen and phosphorus in rainbow trout (average body weight: 100 g). Voluntary feed intake and growth performance of fish fed with demand feeders were not different when diets contained 0, 50 or 75 % SPC instead of fish meal. Total replacement of fish meal by SPC led to a significant decrease in feed intake and resulted in poor growth. This was partly due to methionine deficiency in the SPC based diet. With the addition of crystalline DL-methionine in the diets, an improvement of feed... |
| Tipo: Text |
Palavras-chave: Digestibilité; Excrétion; Azote; Phosphore; Protéine de soja; Ingestion volontaire; Truite arc-en-ciel; Digestibility; Excretion; Nitrogen; Phosphorus; Soy protein; Voluntary feed intake; Rainbow trout. |
| Ano: 1998 |
URL: https://archimer.ifremer.fr/doc/1998/publication-871.pdf |
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| Пархоменко, А. В.. |
| Рассмотрены результаты расчётов экскреции азота зоопланктоном в глубоководной области Чёрного моря. Скорость экскреции азота зоопланктоном в слое 0 – 150 м зимой варьировала от 20 до 23, весной – 34 - 59, летом – 66 – 86, осенью – 89 - 28 мгN·м–2·сут-1. Средняя величина регенерационной первичной продукции, рассчитанная относительно первичной продукции, измеренной радиоуглеродным методом, зимой составляла 24 %, весной – 49 %, летом – 91 %, осенью – 76 %, в среднем за год – 60 %. Обсуждается вопрос о роли регенерационного потока азота в формировании первичной продукции в эвфотическом слое открытой части Чёрного моря. |
| Tipo: Journal Contribution |
Palavras-chave: Азот; Экскреция; Зоопланктон; Чёрное море; Nitrogen; Excretion; Zooplankton; Black Sea Nitrogen Excretion Zooplankton Nitrogen Zooplankton Excretion http://aims.fao.org/aos/agrovoc/c_5192 http://aims.fao.org/aos/agrovoc/c_15490 http://aims.fao.org/aos/agrovoc/c_2750. |
| Ano: 2007 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/302 |
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| Пархоменко, А. В.. |
| Рассмотрены результаты модельных расчётов экскреции неорганического фосфора зоопланктоном в глубоководной области Чёрного моря. Величины скорости экскреции фосфатов зоопланктоном в слое 0 - 150 м зимой варьировали от 2.45 до 3.29, весной - 4.25 - 8.81, летом - 7.72 - 12.39, осенью - 13.36 - 3.77 мгР·мˉ2·сутˉ¹. Количественная оценка вклада простейших, мезопланктона и желетелого макропланктона в суммарную экскрецию фосфатов указывает на ключевую роль простейших. Вклад простейших в среднем составлял - 51 %, мезопланктона - 32 %, макропланктона - 17 %. Регенерационная первичная продукция зимой изменялась от 17 до 30 %, весной - 30 - 97 %, летом - 93 - 100 %, осенью - 44 - 100 %, в среднем за год 64 %. Обсуждается вопрос о роли "микробиальной петли" в... |
| Tipo: Journal Contribution |
Palavras-chave: Фосфор; Экскреция; Скорость; Зоопланктон; Черное море; Phosphorus; Rate; Excretion; Zooplankton; Black sea Zooplankton Excretion Phosphorus Zooplankton Phosphorus Excretion http://aims.fao.org/aos/agrovoc/c_15490 http://aims.fao.org/aos/agrovoc/c_5804 http://aims.fao.org/aos/agrovoc/c_2750. |
| Ano: 2005 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/242 |
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| Registros recuperados: 18 | |
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