Effects of enzyme addition to canola meal in prawn diets

Buchanan, J. G.; Sarac, HZ; Poppi, Dennis P.; Cowan, RT

doi:10.1016/s0044-8486(96)01478-0

Cited by 46 publications

(37 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Addition of exogenous a-amylase in the diet also enhanced the dry matter digestibility in L. rohita juveniles, which is in agreement with the results of Kolkovski et al (1993) in gilt head bream (Sparus aurata), Carter et al (1994) in Atlantic salmon (Salmo salar) and Buchanan et al (1997) in tiger prawn (Penaeus monodon). The increased digestibility might have been due to release of previously unavailable glucose, degradation of the starch in the diet prior to feeding or by enhancement of the enzyme activity in the intestinal tract.…”

Section: Apparent Dry Matter Digestibilitysupporting

confidence: 87%

“…Exogenous dietary enzyme supplements, isolated from plants and bacteria, have been used successfully in pig and poultry feeds (Batterham 1992;Farrell 1992;Campbell and Bedford 1992;Chesson 1993;Bedford 1996;Dudley-Cash 1997). The addition of exogenous carbohydrase enzymes to aquafeed has been reported to enhance the utilization of unavailable dietary carbohydrates by Atlantic salmon, Salmo salar, larval gilthead sea bream, Sparus aurata and tiger prawn, Penaeus monodon (Kolkovski et al 1993;Carter et al 1994;Buchanan et al 1997). Stone et al (2003b) has also reported that starch digestibility was significantly affected by different levels of Natustarch (a commercial a-amylase).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Studies on digestibility and digestive enzyme activities in Labeo rohita (Hamilton) juveniles: effect of microbial α-amylase supplementation in non-gelatinized or gelatinized corn-based diet at two protein levels

Kumar

Sahu

Pal

et al. 2006

Fish Physiol Biochem

View full text Add to dashboard Cite

A 60-days feeding trial was conducted to delineate the effect of both gelatinized and non-gelatinized corn with or without supplementation with exogenous a-amylase at two dietary protein levels (35% and 28%) on dry matter digestibility, digestive enzymes and tissue glycogen content of Labeo rohita juveniles. Three hundred and sixty juveniles (average weight 10±0.15 g] were randomly distributed into 12 treatment groups with each of two replicates. Twelve semi-purified diets containing either 35% or 28% crude protein were prepared by including gelatinized (G) or non-gelatinized (NG) corn as carbohydrate source with different level of microbial a-amylase (0, 50, 100 and 150 mg kg -1 ). The dry matter digestibility of G corn fed groups was significantly higher (P < 0.05) than that of the NG corn fed groups. Hepatosomatic index (HSI), liver glycogen and intestinal amylase activity of G starch fed groups were significantly higher (P < 0.05) than those of the NG corn fed groups. However, the reverse trend was found for gastrosomatic index (GSI), muscle glycogen and intestinal protease activity. Addition of 50 mg a-amylase kg -1 feed improved the dry matter digestibility of NG starch fed groups, which was similar to that of the G corn fed groups or NG corn supplemented with 100/150 mg a-amylase kg -1 feed. HSI, liver glycogen and intestinal amylase activity were significantly increased (P < 0.05) at minimum level of a-amylase in the feed (50 mg kg -1 ) and did not increase due to further inclusion of amylase in the diet. Supplementation with a-amylase at 50 mg kg -1 increased the intestinal amylase activity beyond which no significant changes were observed. Protease activity of liver and intestine was highest (P < 0.05) in higher crude protein (CP) fed groups, but protease activity of the intestine was significantly higher in the a-amylase supplemented groups. Hence, it was concluded that feed with 28% CP containing either G corn without a-amylase or NG corn with 50 mg a-amylase kg -1 may be used as the alternative carbohydrate source for L. rohita juveniles.

show abstract

Section: Apparent Dry Matter Digestibilitysupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Studies on digestibility and digestive enzyme activities in Labeo rohita (Hamilton) juveniles: effect of microbial α-amylase supplementation in non-gelatinized or gelatinized corn-based diet at two protein levels

Kumar

Sahu

Pal

et al. 2006

Fish Physiol Biochem

View full text Add to dashboard Cite

show abstract

“…In general, enzyme supplemented diets exhibited a significant increase in weight gain in Penaeus monodon (Buchanan et al, 1997) and Pangasius pangasius (Debnath et al, 2005), but contradicted by the results of Yan et al (2002) with channel catfish Ictalurus punctatus. Studies on poultry, pigs and ruminants show that cellulases can improve feed value and performance of animals (Karmakar and Ray, 2011;Kuhad et al, 2011;Titi and Tabbaa, 2004).…”

Section: Discussionmentioning

confidence: 76%

Enhancement of growth and intestinal flora in grass carp: The effect of exogenous cellulase

et al. 2013

View full text Add to dashboard Cite

“…Exogenous dietary enzyme supplements, isolated from plants and bacteria, have been used successfully in pig and poultry feed (Batterham 1992;Farrell 1992;Campbell and Bedford 1992;Chesson 1993;Bedford 1996;Dudley-Cash 1997). Kolkovvski et al (1993), Carter et al (1994 and Buchanan et al (1997) reported that the addition of exogenous carbohydrase enzymes to aquafeed enhance the utilization of unavailable dietary carbohydrates by Atlantic salmon Salmo salar, gilthead seabream Sparus aurata, and tiger prawn Penaeus monodon, respectively. Stone et al (2003a) also reported that starch digestibility was significantly affected by different level of Natustarch Ò (a commercial a-amylase).…”

Section: Introductionmentioning

confidence: 99%

Modulation of key metabolic enzyme of Labeo rohita (Hamilton) juvenile: effect of dietary starch type, protein level and exogenous α-amylase in the diet

Kumar

Sahu

Pal

et al. 2008

Fish Physiol Biochem

View full text Add to dashboard Cite

A 60-day feeding trial was conducted to delineate the effect of both gelatinized (G) and non-gelatinized (NG) corn with or without supplementation of exogenous alpha-amylase, either at optimum (35%) or sub-optimum (27%) protein levels, on blood glucose, and the key metabolic enzymes of glycolysis (hexokinase, HK), gluconeogenesis (glucose-6 phosphatase, G6Pase and fructose-1,6 bisphosphatase, FBPase), lipogenesis (glucose-6 phosphate dehydrogenase, G6PD) and amino acid metabolism (alanine amino transferase, ALT and aspartate amino transferase, AST) in Labeo rohita. Three hundred and sixty juveniles (average weight 10 +/- 0.15 g) were randomly distributed into 12 treatment groups with each of two replicates. Twelve semi-purified diets containing either 35 or 27% crude protein were prepared by including G or NG corn as carbohydrate source with different levels of microbial alpha-amylase (0, 50, 100 and 150 mg kg(-1)). The G corn fed groups showed significantly higher (P < 0.05) blood glucose and G6PD activity, whereas G6Pase, FBPase, ALT and AST activity in liver was higher in the NG corn fed group. Dietary corn type, alpha-amylase level in diet or their interaction had no significant effect (P > 0.05) on liver HK activity, but the optimum crude protein (35%) fed group showed higher HK activity than their low protein counterparts. The sub-optimum crude protein (27%) fed group showed significantly higher (P < 0.05) G6PD activity than the optimum protein fed group, whereas the reverse trend was observed for HK, G6Pase, FBPase, ALT and AST activity. Addition of 50 mg alpha-amylase kg(-1) feed showed increased blood glucose and G6PD activity of the NG corn fed group, whereas the reverse trend was found for G6Pase, FBPase, ALT and AST activity in liver, which was similar to that of the G or NG corn supplemented with 100/150 mg alpha-amylase kg(-1) feed. Data on enzyme activities suggest that NG corn in the diet significantly induced more gluconeogenic and amino acid metabolic enzyme activity, whereas G corn induced increased lipogenic enzyme activity. Increased amino acid catabolic enzyme (ALT and AST) activity was observed either at optimum protein (35%) irrespective of corn type or NG corn without supplementation of alpha-amylase irrespective of protein level in the diet.

show abstract

Effects of enzyme addition to canola meal in prawn diets

Cited by 46 publications

References 12 publications

Studies on digestibility and digestive enzyme activities in Labeo rohita (Hamilton) juveniles: effect of microbial α-amylase supplementation in non-gelatinized or gelatinized corn-based diet at two protein levels

Studies on digestibility and digestive enzyme activities in Labeo rohita (Hamilton) juveniles: effect of microbial α-amylase supplementation in non-gelatinized or gelatinized corn-based diet at two protein levels

Enhancement of growth and intestinal flora in grass carp: The effect of exogenous cellulase

Modulation of key metabolic enzyme of Labeo rohita (Hamilton) juvenile: effect of dietary starch type, protein level and exogenous α-amylase in the diet

Contact Info

Product

Resources

About