|
|
|
| Registros recuperados: 40 | |
|
| |
|
|
| Kaushik, Sadasivam. |
| The general principles behind the bioenergetic approach for predicting growth, as well as for decreasing feed and nutrient losses, have been set forth for salmonids. Given the diversification of fish farming activities around the world and the ever increasing concern for water quality management, it becomes essential to verify whether an approach developed for salmonids is applicable to other species. Given this general background, an attempt is made here to check the theoretical assumptions and technical considerations behind the bioenergetic principles developed for rainbow trout with other freshwater or marine species. From a conceptual point of view, recent literature data do indicate that as far as nitrogen or energy balance is concerned, the general... |
| Tipo: Text |
Palavras-chave: Nutrition; Croissance; Poissons d'eau douce; Poissons de mer; Nutrition; Growth; Freshwater fish; Marine fish. |
| Ano: 1998 |
URL: https://archimer.ifremer.fr/doc/1998/publication-869.pdf |
| |
|
|
| 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 |
| |
|
|
| Company, Rubén; Calduch Giner, Josep; Perez Sanchez, Jaume; Kaushik, Sadasivam. |
| The common dentex (Dentex dentex) is a sparid fish which is considered a suitable candidate for Mediterranean aquaculture. A seven-weeks feeding trial was conducted over the summer period with common dentex, sea bream (Sparus aurata) and sea bass (Dicentrarchus labrax). All three species were fed to visual satiety with two practical diets with varying crude protein and crude fat levels (55 % protein, 9 % lipids; 46 % protein, 17 % lipids). The initial body weights were 8.2, 11.6 and 17.3 g for common dentex, sea bass and sea bream, respectively. In all cases, specific growth rates were not significantly affected by dietary treatment, but they varied among species (sea bass 1.7-1.8 %; sea bream 2.1-2.3 %; common dentex 3.1-3.2 %). When comparisons between... |
| Tipo: Text |
Palavras-chave: Sparus aurata; Dicentrarchus labrax; Dentex dentex; Growth hormone; Energy availability; Protein retention; Growth performance; Sparus aurata; Dentex dentex I Dicentrarchus labrax; Hormone de croissance; Energie digestible; Rétention protéinique; Croissance. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/1999/publication-863.pdf |
| |
|
| |
|
|
| Panserat, Stéphane; Blin, C; Medale, Francoise; Plagnes Juan, E; Breque, Jeanine; Krishnamoorthy, J; Kaushik, Sadasivam. |
| The enzyme glucokinase (GK) (EC 2.7.1.1) plays an important role in the control of glucose homeostasis. Qualitative and/or quantitative variations in GK enzyme have been postulated by previous studies to explain why dietary carbohydrate utilisation is lower in gilthead seabream (Sparus aurata) and rainbow trout (Oncorhynchus mykiss) than in common carp (Cyprinus carpio). In this study, we report the isolation and characterisation of a full-length cDNA coding for GK in these teleosts. Amino acid sequences derived from these cDNA clones are highly similar to other vertebrate GKs. These findings, including a detailed phylogenetic analysis, reveal that GK gene highly homologous to mammalian GK exists in these fish species with similar tissue specific... |
| Tipo: Text |
Palavras-chave: Glucose phosphorylation; Dietary carbohydrate; Fish nutrition. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/publication-669.pdf |
| |
|
|
| Regost, Christelle; Arzel, Jacqueline; Cardinal, Mireille; Laroche, M; Kaushik, Sadasivam. |
| Three isoproteic (crude protein content: 56%) diets with different fat levels (11%, 20%, and 26%) were fed to triplicate groups of triploid brown trout (initial average body weight of 1.5 kg), reared in seawater. At the end of 3 months of feeding, fish fed the high-fat (HF) diet were split into two groups: a triplicate group of fish received the low-fat diet and another triplicate group was kept unfed for a further 2-month period. Fish initially fed the low-fat diet during the first period were continued to be fed the same diet. Fish fed the medium-fat (MF) diet during period 1 were eliminated for period 2. At the end of each period, comparative whole body analyses, sensory and instrumental (texture and colour) analyses were made on fresh and smoked... |
| Tipo: Text |
Palavras-chave: Texture; Colour; Sensory analyses; Starvation fat deposition; Dietary fat; Salmo trutta. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-377.pdf |
| |
|
| |
|
|
| Burel, Christine; Boujard, Thierry; Kaushik, Sadasivam; Boeuf, Gilles; Mol, K; Van Der Geyten, S; Darras, V; Kuhn, E; Pradet Balade, B; Querat, B; Quinsac, A; Krouti, M; Ribaillier, D. |
| Two rapeseed meals (RM1 and RM2), containing glucosinolates at a concentration of 26 and 40 mumol/g, respectively, were incorporated at increasing levels (10, 20, and 30% for RM1 and 30 and 50% for RM2) in diets of juvenile rainbow trout. Disturbances in the thyroid axis appeared after 14 days of feeding (with a dietary incorporation level of 10%). The dietary supplementation with T-3 or iodine induced an increase in plasma T-3 levels, compared to that in fish fed the RM diets, and reduced the deleterious effect of RM on growth. When trout were reared in seawater, there was also a slight increase in thyroid hormone levels. TSH treatment had no effect on the thyroid hormone plasma levels. The incorporation of 30% of RM1, which induced a lower dietary... |
| Tipo: Text |
Palavras-chave: Rainbow trout; Iodine; TSH; Deiodinase activity; Thyroid function; Growth; Glucosinolates; Rapeseed. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-677.pdf |
| |
|
|
| Regost, Christelle; Arzel, Jacqueline; Cardinal, Mireille; Robin, Jean; Laroche, M; Kaushik, Sadasivam. |
| A study was undertaken with marketable size turbot to evaluate the effects of dietary fat levels on chemical composition. lipogenesis and flesh quality, Four experimental diets containing graded levels of fish oil in order to obtain 10%, 15%, 20% and 25% of crude fat were fed to triplicate groups of turbot (initial body weight of 660 g) for 12 weeks in full strength seawater at temperature of 17 degreesC. Nutrient digestibility was not influenced by dietary fat levels. The best growth performance was observed in fish fed 10% and 15% dietary fat. High dietary lipid levels led to higher fat deposition in whole fish, although lipid level in muscle remained low (1.1% in dorsal muscle and 1.7% in ventral muscle irrespective of diet), Significant subcutaneous... |
| Tipo: Text |
Palavras-chave: Flesh quality; Lipogenesis; Fat deposition; Dietary lipids; Psetta maxima. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-376.pdf |
| |
|
|
| Bennetau Pelissero, Catherine; Breton, Bernard; Bennetau, Bernard; Corraze, Genevieve; Le Menn, Françoise; Davail Cuisset, Blandine; Helou, Chantal; Kaushik, Sadasivam. |
| Three practical diets were formulated to contain 0, 500, or 1000 ppm genistein. The three diets were distributed for 1 year to groups of rainbow trout undergoing their first gametogenesis and until spawning. Growth performance of rainbow trout was not affected by dietary treatments. Plasma cholesterol levels were equivalent between groups. In males, a slight but constant induction of vitellogenin (VTG) synthesis and a decrease in testosterone levels were observed. A slight decrease in plasma levels of beta FSH and beta LH was noticed at the end of spermatogenesis in the male fish fed a diet with 500 ppm (genistein) (from 2.16 +/- 0.39 to 1.47 +/- 0.23 for beta FSH and from 0.44 +/- 0.09 to 0.31 +/- 0.09 for beta LH). There was a significantly reduced 17... |
| Tipo: Text |
Palavras-chave: Diet; Reproduction; GTH; Vitellogenin; Steroid; Trout; Genistein. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-738.pdf |
| |
|
|
| Panserat, Stéphane; Plagnes Juan, E; Kaushik, Sadasivam. |
| Rainbow trout (Oncorhynchus mykiss) are known to use dietary carbohydrates poorly. One of the hypotheses to explain the poor utilisation of dietary glucose by these fish is a dysfunction in nutritional regulation of hepatic glucose metabolism. In this study, we obtained partial clones of rainbow trout cDNAs coding for a glucose transporter (Glut2), and for the enzymes 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase (6PF-2K/F-2,6BPase), fructose-1,6-bisphosphatase (FBPase) and pyruvate kinase (PI(), Their deduced amino acid sequences were highly similar to those of mammals (up to 80% similarity), In a study of nutritional regulation, the Glut2 gene was highly expressed in the liver irrespective of the nutritional status of the trout, in agreement with... |
| Tipo: Text |
Palavras-chave: Oncorhynchus mykiss; Trout; Bifunctional enzyme; Pyruvate kinase; Fructose bisphosphatase; Glucose transporter; Glucose metabolism; Liver metabolism. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-415.pdf |
| |
|
| |
|
|
| Regost, Christelle; Arzel, Jacqueline; Robin, Jean; Rosenlund, Grethe; Kaushik, Sadasivam. |
| The aim of the study was to investigate the replacement of fish oil by vegetable oils and the effects of a washout with a return to fish oil on growth performances and lipid metabolism. three experimental fish meal-based isonitrogenous (crude protein content: 57.5%) and isolipidic (crude lipid content: 16.5%) diets were formulated containing either 9% of added fish oil (170), soybean oil (SO), or linseed oil (LO). Each diet was distributed to triplicate groups of 25 marketable size turbot (initial body weight of 579 g) grown in seawater at water temperature of 17 T. Fish were fed once a day to visual satiety. At the end of the growth trial, which lasted 13 weeks, all groups of turbot were fed with FO diet for 8 weeks. The growth of turbot was high, but the... |
| Tipo: Text |
Palavras-chave: Lipogenesis; Fatty acids; Liver; Muscle; Body composition; Growth; Vegetable oil; Fish oil; Psetta maxima. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-375.pdf |
| |
|
| |
|
|
| Robin, Jean; Regost, Christelle; Arzel, Jacqueline; Kaushik, Sadasivam. |
| The fatty acid (FA) content of fish is generally said to reflect fatty acid composition of the diet. In fact, incorporation of FA into tissues is modulated by various metabolic factors, and final composition will depend upon the initial FA content, cumulative intake of dietary fatty acids, growth rate and duration. Analysis of time course of changes in FA composition should be easier with animals having different initial FA profiles, which are subsequently fed a diet with the same FA composition. Data from two studies, one with brown trout and another with turbot were used. Fish were first fed with diets containing one of three different oils (soybean oil (SO), linseed oil (LO) and fish oil (FO)), and subsequently fed the same fish oil-based diet... |
| Tipo: Text |
Palavras-chave: Dietary change; Model; Fish; Fatty acids. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-498.pdf |
| |
|
|
| De Francesco, Matilde; Parisi, Giuliana; Medale, Francoise; Lupi, Paola; Kaushik, Sadasivam; Poli, Bianca. |
| Two diets based oil fish meal (FM) or oil a mixture of plant protein sources supplemented with free amino acids (PP) were fed to rainbow trout having a mean initial body weight of 162.5 g reared at 17 +/- 1 degreesC for 24 weeks to evaluate the effect of plant protein sources oil fish growth, morphological and body quality traits. At the end of the growth study, samples were withdrawn for chemical analyses as well as measurements of different parameters of quality. Compared to the FM group, the trout fed diet PP had lower growth rates (mean final body weight 663 vs. 800 g), feed efficiency (0.95 vs. 1.07) and protein efficiency ratio (1.96 vs. 2.13). Trout fed diet PP were also characterised by a lower dressed weight (89.45% vs. 91.07%), hepato-somatic... |
| Tipo: Text |
Palavras-chave: Sensory evaluation; Chemical composition quality; Flesh; Body traits; Plant protein; Oncorhynchus mykiss. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-391.pdf |
| |
|
|
| Boujard, Thierry; Gelineau, Anne; Coves, Denis; Corraze, Genevieve; Dutto, Gilbert; Gasset, Eric; Kaushik, Sadasivam. |
| Three practical isoproteic (54% protein) diets were formulated to contain graded levels of crude fat (diet L: 10%, diet M: 20% and diet H: 30%). Each diet was assigned unrestrictedly to three and restrictedly to two replicate groups of fish (IBW 243 g). In unrestricted groups, increasing the dietary lipid level led to a significant decrease in voluntary feed intake without affecting growth rate. In the feed-restricted groups, daily growth rates increased with increasing dietary fat levels. There was a significant and inverse effect of the dietary fat content on whole body moisture and fat levels, with highest lipid (ca. 20%) and lowest moisture (ca. 58%) contents in sea bass fed diet containing the highest lipid level; muscle lipid concentration was... |
| Tipo: Text |
Palavras-chave: Phosphorus excretion; Feed intake; Lipid; Digestible energy; European sea bass; Dicentrarchus labrax. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-392.pdf |
| |
|
|
| Gomez Requeni, P; Calduch Giner, J; De Celis, S; Medale, Francoise; Kaushik, Sadasivam; Perez Sanchez, J. |
| The activity of the somatotropic axis was analysed in juvenile rainbow trout (Oncorhynchus mykiss) fed either a fishmeal-based diet (FM) or graded levels of plant proteins to replace 50 % (PP50 diet), 75 % (PP75 diet) or 100 % (PP100 diet) of the fishmeal protein. For this purpose, partial cloning and sequencing of the gene encoding rainbow trout growth hormone receptor (GHR) was first accomplished by RT-PCR, using degenerate primers based on the sequences of non-salmonid fish GHR. Growth rates and energy retention were lowered by the PP75 and PP100 diets and a concurrent and progressive increase in plasma levels of growth hormone (GH) was found. However, no changes in hepatic GH binding and total plasma insulin-like growth factor (IGF)-I levels were... |
| Tipo: Text |
Palavras-chave: Insulin like growth factor; Growth hormone receptor; Growth hormone; Plant proteins; Rainbow trout. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-3620.pdf |
| |
|
|
| Sitja Bobadilla, A; Pena Llopis, S; Gomez Requeni, P; Medale, Francoise; Kaushik, Sadasivam; Perez Sanchez, J. |
| Partial or total replacement of fish meal by a mixture of plant protein (PP) sources (corn gluten, wheat gluten, extruded peas, rapeseed meal and sweet white lupin) balanced with indispensable amino acids was examined in juvenile gilthead sea bream over the course of a 6-month growth trial. A diet with fish meal (FM) as the sole protein source was compared to diets with 50%, 75% and 100% of replacement (PP50, PP75, and PP100). The possible influence of diets on growth performance, plasma metabolites, gut integrity, liver structure, anti-oxidant and immune status was evaluated. Final body weight was progressively decreased with PP inclusion, but in PP50 and PP75-fed fish, feed efficiency (FE) was significantly improved and specific growth rates remained... |
| Tipo: Text |
Palavras-chave: Gilthead sea bream; Cholesterol; Glutathione; Histopathology; Myeloperoxidase; Complement; Lysozyme; Respiratory burst; Immune response; Growth; Plant proteins; Fish meal. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-3595.pdf |
| |
| Registros recuperados: 40 | |
|
|
|
