Absorption and incorporation of dietary free and protein bound (U14C)-lysine in Atlantic cod (Gadus morhua)

Berge, Grim; Lied, Einar; Espe, Marit

doi:10.1016/0300-9629(94)90210-0

Cited by 47 publications

(28 citation statements)

References 20 publications

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“…Whether this also applies to intestinal proteolytic enzymes and assimilation of lysine in fishes remains to be shown. However, a lower digestive absorption rate of protein than of free amino acids in post-larval Atlantic halibut is in line with previous data for juveniles and adults of other teleosts (Atlantic cod, Berge et al 1994;Atlantic salmon, Espe et al 1993;rainbow trout, Yamada et al 1981) and also of other vertebrates, including man (Metges et al 2000). Still, the results for assimilation of protein and peptides in Atlantic halibut post-larvae need verification with the use of non-methylated compounds.…”

supporting

confidence: 92%

Comment on the article "Assimilation of dietary free amino acids, peptides and protein in post-larval Atlantic halibut (Hippoglossus hippoglossus)"

Rojas-García

Rønnestad

2003

Marine Biology

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supporting

confidence: 92%

Comment on the article "Assimilation of dietary free amino acids, peptides and protein in post-larval Atlantic halibut (Hippoglossus hippoglossus)"

Rojas-García

Rønnestad

2003

Marine Biology

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“…However, those experiments with fish fed diets in which mixtures of free amino acids were substituted for part of the dietary protein or all the protein, lower WG and amino acids deposition was observed compared to those fed an intact protein source (Yamada et al. 1981; Berge et al. 1994).…”

Section: Discussionmentioning

confidence: 94%

Effects of supplementation of crystalline or coated methionine on growth performance and feed utilization of the pacific white shrimp, Litopenaeus vannamei

Chi

Tan

Lin

et al. 2011

Aquaculture Nutrition

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Summary This study was conducted to evaluate the effects of supplementation of crystalline methionine or coated methionine supplemented in diets of Pacific white shrimp (Litopenaeus vannamei) on growth performance and feed utilization. Five iso‐nitrogen and iso‐caloric diets were prepared in which diets were supplemented with cellulose‐acetate‐phthalate (CAP), tripalmitin‐polyvinyl alcohol (TPA), acrylic resin (RES) coated l‐methionine, hydroxyl‐methionine calcium (MHA) and crystalline l‐methionine diet (MET, control), respectively. After 7 weeks, shrimp (0.81 ± 0.01 g in initial body weight) weight gain fed with MET and RES diets were significantly higher than that of the others (P < 0.05), while feed conversion ratio of shrimp fed with RES was significantly lower than the others (P < 0.05). Crude protein (as wet weight basis) in whole body of shrimp fed the RES diet was markedly higher than the others (P < 0.05). Methionine contents in muscle of CAP and MHA groups were significantly higher than those of MET group (P < 0.05). Apparently digestibility for essential amino acid of MET group was the highest except methionine. In the present study, RES coating methionine appeared to effectively improve feed protein utilization and enhance growth performance of Pacific white shrimp fed with low fishmeal practical diet.

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“…This may indicate different metabolic handling of amino acids and availability for protein synthesis, which is translated to better growth rate (Dabrowski et al 2005). Juvenile fish study indicated a faster free amino acid absorption compared with protein bound amino acids for carp, Cyprinus carpio (Plakas and Katayama 1981), rainbow trout (Cowey and Walton 1988) and Atlantic cod, Gadus morhua (Berge et al 1994). However, the rapid amino acid absorption may lead to tissue amino acid imbalance and redirect the excess amino acid to a catabolic instead of an anabolic process, which eventually translated to a poor growth rate (Tesser et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Supplementations of dl‐Methionine and Methionine Dipeptide in Diets are Effective for the Development and Growth of Larvae and Juvenile Red Sea Bream, Pagrus major

Mamauag¹,

Gao²,

Nguyen³

et al. 2012

J World Aquaculture Soc

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Growth trials for larvae and juvenile red sea bream, Pagrus major, were conducted to elucidate the efficacy of two molecular forms of methionine; dl‐methionine (dl‐Met) and methionine dipeptide (Met‐Met). For the larvae experiment, five experimental diets were formulated and fed to fish (42 mg) for 30 days. A diet which has 15% soy protein isolate served as the control diet. Similarly, test diets supplemented with dl‐Met and Met‐Met at 0.5%, which were either precoated by zein or intact, were also formulated. For the juvenile experiment, five experimental diets were formulated wherein the control diet contained 25% soy protein isolate. Test diets were supplemented with dl‐Met and Met‐Met at 0.75%, which were either coated by carboxymethycellulose or intact and fed to juveniles (0.75 g) for 56 days. The results of two feeding trials showed both dl‐Met and Met‐Met can be equally utilized by red sea bream larvae and juveniles. Coating the amino acid significantly improved both fish larval and juvenile growth performance. The development of digestive protease activity of larvae was significantly influenced by coating the amino acid, but the type of methionine was not a factor in changing the protease activity of larvae.

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Absorption and incorporation of dietary free and protein bound (U14C)-lysine in Atlantic cod (Gadus morhua)

Cited by 47 publications

References 20 publications

Comment on the article "Assimilation of dietary free amino acids, peptides and protein in post-larval Atlantic halibut (Hippoglossus hippoglossus)"

Comment on the article "Assimilation of dietary free amino acids, peptides and protein in post-larval Atlantic halibut (Hippoglossus hippoglossus)"

Effects of supplementation of crystalline or coated methionine on growth performance and feed utilization of the pacific white shrimp, Litopenaeus vannamei

Supplementations of dl‐Methionine and Methionine Dipeptide in Diets are Effective for the Development and Growth of Larvae and Juvenile Red Sea Bream, Pagrus major

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