The Experts below are selected from a list of 291 Experts worldwide ranked by ideXlab platform
Marit Espe - One of the best experts on this subject based on the ideXlab platform.
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nutrient absorption and growth of atlantic salmon salmo salar l fed Fish protein concentrate
Aquaculture, 1999Co-Authors: Marit Espe, H Sveier, I Hogoy, Einar LiedAbstract:Absorption of amino acids was studied in Atlantic salmon fed moist diets where 0, 15 and 30% of the Fish meal protein was replaced with concentrated Fish Silage protein prepared from whole minced herring or herring fillet offal (Clupea harengus). Blood samples were withdrawn at 0, 3, 6, 12, 24, 48 and 72 h post-feeding, and plasma-free amino acid concentrations were compared to those of Fish deprived of food for 48 h. Fish fed Fish protein concentrate showed similar or higher plasma amino acid concentrations than Fish fed diets without any added Fish protein concentrate. Maximum plasma amino acid concentrations occurred 3–12 h post-feeding, being fastest in Fish fed the most soluble protein source. Effects of inclusion levels on growth and nutrient utilisation were studied in two experiments where either 0 to 30% or 0 to 40% of the Fish meal protein was replaced with the Fish protein concentrates tested. Fish fed diets where less than 15% of the Fish meal protein was replaced by Fish protein concentrate showed better growth compared to Fish fed either none or higher inclusion levels. Protein accretion decreased in Fish fed the high inclusion levels, and remained unaffected by lower inclusion levels. Protein synthesis measured as incorporation of labelled lysine was not significantly affected by the Fish protein concentrate inclusion. It is assumed that the better growth obtained might be due to a lower protein breakdown.
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Fish Silage prepared from different cooked and uncooked raw materials chemical changes during storage at different temperatures
Journal of the Science of Food and Agriculture, 1999Co-Authors: Marit Espe, Einar LiedAbstract:Four Silage types were prepared from raw and cooked whole herring, whole mackerel, by-products from the filleting-line of cod and saithe, and from the viscera of cod. Each Silage type was stored at 4, 20 and 50°C for 48 days. The raw materials were analysed fresh and after 2, 4, 8, 16, 32 and 48 days of storage. Dry matter, crude protein and total fat were not affected by the different storage temperatures or the length of the storage period. Neither was there any change in amino acid contents. Chemical composition in different Silage types reflected the amounts in the raw materials used for Silage production. Hydrolysis, on the other hand, varied with the type of raw material used for Silage production as well as with the temperature under which the Silages were stored. Cooked raw materials did not show any change in hydrolysis during storage. © 1999 Society of Chemical Industry
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autolysed Fish Silage as a feed ingredient for atlantic salmon salmo salar
Comparative Biochemistry and Physiology Part A: Physiology, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein NjaaAbstract:Abstract 1. 1. Fish Silage made from saithe stored for 2 and 5 months was compared to raw minced saithe as a replacement for parts of the dietary feed protein for Atlantic salmon (Salmo salar). 2. 2. Weight gain and feed utilization were better in the Fish fed the Silage stored for 2 months and the raw mince than Fish fed the Silage stored for 5 months. These Fish also showed somewhat better protein utilization. 3. 3. Those Fish fed the most hydrolysed feed nitrogen, stored less fat in carcass and fillets, resulting in higher amounts of protein.
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substitution of Fish Silage protein and a free amino acid mixture for Fish meal protein in a chicken diet
Journal of the Science of Food and Agriculture, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein NjaaAbstract:White Leghorn chickens were fed a basal diet with about 550 g kg−1 of the protein from Fish meal. Graded amounts of Fish Silage protein or an amino acid mixture simulating Fish meal protein were substituted for parts of the dietary Fish meal protein. In two experiments 150 and 300 g kg−1 of Fish meal protein were replaced by Fish Silage protein or by an amino acid mixture simulating Fish meal. In one experiment graded amounts of 0, 50, 100, 200, 300 and 400 g kg−1 of Fish meal protein were replaced by Fish Silage protein. Growth and feed efficiency were the same or better when some of the protein was from Fish Silage. The results showed that replacement of dietary Fish meal with Fish Silage did not reduce the dietary quality of the feed for young growing chickens. It is concluded that it might be advantageous to substitute Fish Silage for some of the Fish meal under the experimental conditions used.
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growth of young rats on diets based on Fish Silage with different degrees of hydrolysis
Food Chemistry, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein Njaa, J RaaAbstract:Abstract The effect of storage for up to 1 year on the nutritional value of ensiled cooked and non-cooked minced capelin was determined in growth experiments with young rats. Minced fresh capelin of the same batch was also included. Cooked Silage came out best after the storage of 1 year showing both better growth and protein efficiency ratio (PER). There were no significant differences in apparent digestibilities. Rats given the uncooked Silage accumulated more glycogen in the liver than the rats given the cooked Silage diet ( p The rats given raw minced capelin performed worse than the rats given the Silages of up to 180 days of storage, but they performed better than those with 1 year of storage. This was probably due to the procedure used for mixing the diet.
K Jauncey - One of the best experts on this subject based on the ideXlab platform.
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physical and nutritional properties of moist fermented Fish Silage pellets as a protein supplement for tilapia oreochromis niloticus
Animal Feed Science and Technology, 1998Co-Authors: Oyedapo Fagbenro, K JaunceyAbstract:Abstract Fish Silage was prepared by fermentation of stunted tilapia with 50 ml/kg Lactobacillus plantarum starter culture and 150 g/kg sugar beet molasses at 30°C for 7 days, pasteurized, neutralized, and stored at 30°C for 180 days. Addition of 50 ml/kg onion extract proved effective as lipid antioxidant, with peroxide values lower than the control (P 0.05) among diets. Protein and lipid losses were low ( 80%) and similar (P>0.05) among diets. Moist Fish Silage pellets were physically stable and highly digestible to O. niloticus, and suitable as farm-made feeds for Fish.
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nutritive value of dried lactic acid fermented Fish Silage and soybean meal in dry diets for juvenile catFish clarias gariepinus burchell 1822
Journal of Applied Ichthyology, 1997Co-Authors: Oyedapo Fagbenro, K Jauncey, R KruegerAbstract:Dry diets containing either Fish meal (C-FM) or dried fermented Fish Silage and soybean meal blend (1:1, ww−1) (C-FS) as the sole protein source, were fed to triplicate groups of juvenile Clarias gariepinus (10.8 ± 0.3 g) at 5% body weight per day for 70 days. CatFish fed the C-FS diet showed reduced (P < 0.05) growth rate, feed conversion, protein efficiency and digestibility. Lower amounts of available amino acids in the C-FS diet resulted in inferior nutritive value for catFish growth than in the C-FM diet. Postprandial changes in plasma amino acids showed similar patterns in both diet treatments, but the maximal mean levels attained for the C-FS diet were correspondingly lower and occurred earlier than with the C-FM diet. There were no effects of feeding C-FS diet on the hepatosomatic index but carcass analysis showed that body protein deposition was lower (P < 0.05). Differences in haematocrit, haemoglobin content and liver histology were demonstrated but were not pathological. Lower digestible energy of C-FS diet also contributed to the poor performance of catFish in this treatment. Results of this study indicate that C. gariepinus cannot metabolize protein from co-dried Fish Silage as efficiently as Fish meal protein when used as the sole dietary protein.
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growth and protein utilization by juvenile catFish clarias gariepinus fed dry diets containing co dried lactic acid fermented Fish Silage and protein feedstuffs
Bioresource Technology, 1995Co-Authors: Oyedapo Fagbenro, K JaunceyAbstract:Fish-Silage (FS), prepared from lactic acid fermentation of whole tilapias, 5% sugar beet molasses and 2% Lactobacillus plantarum, was blended and co-dried with soybean meal (SBM), poultry by-product meal (PBM), hydrolysed feather meal (HFM) and meat and bone meal (MBM). The blends were evaluated as protein source (providing 50% of dietary protein) in dry diets (40% protein, 4·3 kcal g−1 gross energy) for juvenile catFish, Clarias gariepinus, fed at 4% body weight day−1 for 70 days. The Fish-Silage pellets maintained their shape during water immersion and their water stability was high and similar (P>0·05) to that of a reference diet. Clarias gariepinus fed on the different Fish-Silage diets showed some significant (P 0·05). Protein digestibility was reduced (P<0·05) in catFish fed diets containing FS: HFM while digestibility of energy content was lower (P<0·05) in those fed diets containing FS:SBM and these low values were responsible for the poor performance of catFish in both treatments. There were no effects among treatments on carcass composition, hepatosomatic index, histology of pancreas, liver and intestine tissues, or on haematocrit and haemoglobin contents. Fermented Fish-Silage codried with protein feedstuffs is a suitable protein supplement, which can provide up to 50% of dietary protein without affecting feed efficiency, Fish growth or health.
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water stability nutrient leaching and nutritional properties of moist fermented Fish Silage diets
Aquacultural Engineering, 1995Co-Authors: Oyedapo Fagbenro, K JaunceyAbstract:Fermented Fish Silage was prepared from whole mixed-sex tilapia (Oreochromis niloticus), 15% molasses and 5% Lactobacillus plantarum starter culture and used as protein source in tilapia diets. Four alternative binders (carboxymethyl cellulose, corn starch, guar gum or wheat gluten) were incorporated in diets at 3% and their effects on water stability and nutrient leaching were determined. Water stability of the pellets showed that high physical stability of the pellets was maintained regardless of the binder used, and losses of total nitrogen were low (< 3%) on a per gram diet recovered basis. All-male O. niloticus fingerlings (mean weight, 48·9 g) were fed the appropriate diets at a rate of 5% of body weight per day, twice daily, for 30 days in a recirculated water system with water temperature maintained at 27°C. Apparent digestibility coefficients for dry matter, nitrogen or lipid in the diets were high and similar when carboxymethyl cellulose, corn starch or wheat gluten was used as the binder; but were reduced (P < 0·05) with guar gum.
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nutritive value of diet containing dried lactic acid fermented Fish Silage and soybean meal for juvenile oreochromis niloticus and clarias gariepinus
Aquatic Living Resources, 1994Co-Authors: Oyedapo Fagbenro, K Jauncey, G S HaylorAbstract:Resume Fagbenro O., K. Jauncey, G. Haylor. Aquat. Living Resour., 1994, 7, 79-85. Dry diets containing varying levels of dried fermented Fish Silage and soybean meal blend (FS: SBM) as replacement for 25,50 or 75 % of Fish meal protein were fed to juvenile Oreochromis niloticus (8.210.1 g) and Clarias gariepinus (10.8k0.3 g) at 5 % body weight per day for 70 days. Diets containing CO-dried FS: SBM supported weight gains and growth rates similar to those in the control treatment without significant differences @>0.05). Feed conversion, protein efficiency ratio and protein productive values followed a similar trend with growth performance values. Apparent protein digestibility decreased in both Fish species with increasing dietary level of CO-dried FS: SBM. Carcass composition of experimental Fish were not affected by the diets and morphological defects were not observed. Results indicate that CO-dried FS: SBM can partially replace Fish meal protein as well as establish the potential of utilizing wastehndersized tilapias as a protein feedstuff in dry aquaculture diets.
Leif Rein Njaa - One of the best experts on this subject based on the ideXlab platform.
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autolysed Fish Silage as a feed ingredient for atlantic salmon salmo salar
Comparative Biochemistry and Physiology Part A: Physiology, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein NjaaAbstract:Abstract 1. 1. Fish Silage made from saithe stored for 2 and 5 months was compared to raw minced saithe as a replacement for parts of the dietary feed protein for Atlantic salmon (Salmo salar). 2. 2. Weight gain and feed utilization were better in the Fish fed the Silage stored for 2 months and the raw mince than Fish fed the Silage stored for 5 months. These Fish also showed somewhat better protein utilization. 3. 3. Those Fish fed the most hydrolysed feed nitrogen, stored less fat in carcass and fillets, resulting in higher amounts of protein.
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substitution of Fish Silage protein and a free amino acid mixture for Fish meal protein in a chicken diet
Journal of the Science of Food and Agriculture, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein NjaaAbstract:White Leghorn chickens were fed a basal diet with about 550 g kg−1 of the protein from Fish meal. Graded amounts of Fish Silage protein or an amino acid mixture simulating Fish meal protein were substituted for parts of the dietary Fish meal protein. In two experiments 150 and 300 g kg−1 of Fish meal protein were replaced by Fish Silage protein or by an amino acid mixture simulating Fish meal. In one experiment graded amounts of 0, 50, 100, 200, 300 and 400 g kg−1 of Fish meal protein were replaced by Fish Silage protein. Growth and feed efficiency were the same or better when some of the protein was from Fish Silage. The results showed that replacement of dietary Fish meal with Fish Silage did not reduce the dietary quality of the feed for young growing chickens. It is concluded that it might be advantageous to substitute Fish Silage for some of the Fish meal under the experimental conditions used.
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growth of young rats on diets based on Fish Silage with different degrees of hydrolysis
Food Chemistry, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein Njaa, J RaaAbstract:Abstract The effect of storage for up to 1 year on the nutritional value of ensiled cooked and non-cooked minced capelin was determined in growth experiments with young rats. Minced fresh capelin of the same batch was also included. Cooked Silage came out best after the storage of 1 year showing both better growth and protein efficiency ratio (PER). There were no significant differences in apparent digestibilities. Rats given the uncooked Silage accumulated more glycogen in the liver than the rats given the cooked Silage diet ( p The rats given raw minced capelin performed worse than the rats given the Silages of up to 180 days of storage, but they performed better than those with 1 year of storage. This was probably due to the procedure used for mixing the diet.
Oyedapo Fagbenro - One of the best experts on this subject based on the ideXlab platform.
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physical and nutritional properties of moist fermented Fish Silage pellets as a protein supplement for tilapia oreochromis niloticus
Animal Feed Science and Technology, 1998Co-Authors: Oyedapo Fagbenro, K JaunceyAbstract:Abstract Fish Silage was prepared by fermentation of stunted tilapia with 50 ml/kg Lactobacillus plantarum starter culture and 150 g/kg sugar beet molasses at 30°C for 7 days, pasteurized, neutralized, and stored at 30°C for 180 days. Addition of 50 ml/kg onion extract proved effective as lipid antioxidant, with peroxide values lower than the control (P 0.05) among diets. Protein and lipid losses were low ( 80%) and similar (P>0.05) among diets. Moist Fish Silage pellets were physically stable and highly digestible to O. niloticus, and suitable as farm-made feeds for Fish.
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nutritive value of dried lactic acid fermented Fish Silage and soybean meal in dry diets for juvenile catFish clarias gariepinus burchell 1822
Journal of Applied Ichthyology, 1997Co-Authors: Oyedapo Fagbenro, K Jauncey, R KruegerAbstract:Dry diets containing either Fish meal (C-FM) or dried fermented Fish Silage and soybean meal blend (1:1, ww−1) (C-FS) as the sole protein source, were fed to triplicate groups of juvenile Clarias gariepinus (10.8 ± 0.3 g) at 5% body weight per day for 70 days. CatFish fed the C-FS diet showed reduced (P < 0.05) growth rate, feed conversion, protein efficiency and digestibility. Lower amounts of available amino acids in the C-FS diet resulted in inferior nutritive value for catFish growth than in the C-FM diet. Postprandial changes in plasma amino acids showed similar patterns in both diet treatments, but the maximal mean levels attained for the C-FS diet were correspondingly lower and occurred earlier than with the C-FM diet. There were no effects of feeding C-FS diet on the hepatosomatic index but carcass analysis showed that body protein deposition was lower (P < 0.05). Differences in haematocrit, haemoglobin content and liver histology were demonstrated but were not pathological. Lower digestible energy of C-FS diet also contributed to the poor performance of catFish in this treatment. Results of this study indicate that C. gariepinus cannot metabolize protein from co-dried Fish Silage as efficiently as Fish meal protein when used as the sole dietary protein.
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growth and protein utilization by juvenile catFish clarias gariepinus fed dry diets containing co dried lactic acid fermented Fish Silage and protein feedstuffs
Bioresource Technology, 1995Co-Authors: Oyedapo Fagbenro, K JaunceyAbstract:Fish-Silage (FS), prepared from lactic acid fermentation of whole tilapias, 5% sugar beet molasses and 2% Lactobacillus plantarum, was blended and co-dried with soybean meal (SBM), poultry by-product meal (PBM), hydrolysed feather meal (HFM) and meat and bone meal (MBM). The blends were evaluated as protein source (providing 50% of dietary protein) in dry diets (40% protein, 4·3 kcal g−1 gross energy) for juvenile catFish, Clarias gariepinus, fed at 4% body weight day−1 for 70 days. The Fish-Silage pellets maintained their shape during water immersion and their water stability was high and similar (P>0·05) to that of a reference diet. Clarias gariepinus fed on the different Fish-Silage diets showed some significant (P 0·05). Protein digestibility was reduced (P<0·05) in catFish fed diets containing FS: HFM while digestibility of energy content was lower (P<0·05) in those fed diets containing FS:SBM and these low values were responsible for the poor performance of catFish in both treatments. There were no effects among treatments on carcass composition, hepatosomatic index, histology of pancreas, liver and intestine tissues, or on haematocrit and haemoglobin contents. Fermented Fish-Silage codried with protein feedstuffs is a suitable protein supplement, which can provide up to 50% of dietary protein without affecting feed efficiency, Fish growth or health.
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water stability nutrient leaching and nutritional properties of moist fermented Fish Silage diets
Aquacultural Engineering, 1995Co-Authors: Oyedapo Fagbenro, K JaunceyAbstract:Fermented Fish Silage was prepared from whole mixed-sex tilapia (Oreochromis niloticus), 15% molasses and 5% Lactobacillus plantarum starter culture and used as protein source in tilapia diets. Four alternative binders (carboxymethyl cellulose, corn starch, guar gum or wheat gluten) were incorporated in diets at 3% and their effects on water stability and nutrient leaching were determined. Water stability of the pellets showed that high physical stability of the pellets was maintained regardless of the binder used, and losses of total nitrogen were low (< 3%) on a per gram diet recovered basis. All-male O. niloticus fingerlings (mean weight, 48·9 g) were fed the appropriate diets at a rate of 5% of body weight per day, twice daily, for 30 days in a recirculated water system with water temperature maintained at 27°C. Apparent digestibility coefficients for dry matter, nitrogen or lipid in the diets were high and similar when carboxymethyl cellulose, corn starch or wheat gluten was used as the binder; but were reduced (P < 0·05) with guar gum.
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nutritive value of diet containing dried lactic acid fermented Fish Silage and soybean meal for juvenile oreochromis niloticus and clarias gariepinus
Aquatic Living Resources, 1994Co-Authors: Oyedapo Fagbenro, K Jauncey, G S HaylorAbstract:Resume Fagbenro O., K. Jauncey, G. Haylor. Aquat. Living Resour., 1994, 7, 79-85. Dry diets containing varying levels of dried fermented Fish Silage and soybean meal blend (FS: SBM) as replacement for 25,50 or 75 % of Fish meal protein were fed to juvenile Oreochromis niloticus (8.210.1 g) and Clarias gariepinus (10.8k0.3 g) at 5 % body weight per day for 70 days. Diets containing CO-dried FS: SBM supported weight gains and growth rates similar to those in the control treatment without significant differences @>0.05). Feed conversion, protein efficiency ratio and protein productive values followed a similar trend with growth performance values. Apparent protein digestibility decreased in both Fish species with increasing dietary level of CO-dried FS: SBM. Carcass composition of experimental Fish were not affected by the diets and morphological defects were not observed. Results indicate that CO-dried FS: SBM can partially replace Fish meal protein as well as establish the potential of utilizing wastehndersized tilapias as a protein feedstuff in dry aquaculture diets.
Herborg Haaland - One of the best experts on this subject based on the ideXlab platform.
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autolysed Fish Silage as a feed ingredient for atlantic salmon salmo salar
Comparative Biochemistry and Physiology Part A: Physiology, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein NjaaAbstract:Abstract 1. 1. Fish Silage made from saithe stored for 2 and 5 months was compared to raw minced saithe as a replacement for parts of the dietary feed protein for Atlantic salmon (Salmo salar). 2. 2. Weight gain and feed utilization were better in the Fish fed the Silage stored for 2 months and the raw mince than Fish fed the Silage stored for 5 months. These Fish also showed somewhat better protein utilization. 3. 3. Those Fish fed the most hydrolysed feed nitrogen, stored less fat in carcass and fillets, resulting in higher amounts of protein.
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substitution of Fish Silage protein and a free amino acid mixture for Fish meal protein in a chicken diet
Journal of the Science of Food and Agriculture, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein NjaaAbstract:White Leghorn chickens were fed a basal diet with about 550 g kg−1 of the protein from Fish meal. Graded amounts of Fish Silage protein or an amino acid mixture simulating Fish meal protein were substituted for parts of the dietary Fish meal protein. In two experiments 150 and 300 g kg−1 of Fish meal protein were replaced by Fish Silage protein or by an amino acid mixture simulating Fish meal. In one experiment graded amounts of 0, 50, 100, 200, 300 and 400 g kg−1 of Fish meal protein were replaced by Fish Silage protein. Growth and feed efficiency were the same or better when some of the protein was from Fish Silage. The results showed that replacement of dietary Fish meal with Fish Silage did not reduce the dietary quality of the feed for young growing chickens. It is concluded that it might be advantageous to substitute Fish Silage for some of the Fish meal under the experimental conditions used.
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growth of young rats on diets based on Fish Silage with different degrees of hydrolysis
Food Chemistry, 1992Co-Authors: Marit Espe, Herborg Haaland, Leif Rein Njaa, J RaaAbstract:Abstract The effect of storage for up to 1 year on the nutritional value of ensiled cooked and non-cooked minced capelin was determined in growth experiments with young rats. Minced fresh capelin of the same batch was also included. Cooked Silage came out best after the storage of 1 year showing both better growth and protein efficiency ratio (PER). There were no significant differences in apparent digestibilities. Rats given the uncooked Silage accumulated more glycogen in the liver than the rats given the cooked Silage diet ( p The rats given raw minced capelin performed worse than the rats given the Silages of up to 180 days of storage, but they performed better than those with 1 year of storage. This was probably due to the procedure used for mixing the diet.