Comparison between the omnivorous jundiá catfish (Rhamdia quelen) and Nile tilapia (Oreochromis niloticus) on the utilization of dietary starch sources: Digestibility, enzyme activity and starch microstructure

Gominho-Rosa, Maria do Carmo; Rodrigues, Aline; Mattioni, Bruna; Francisco, Alícia de; Moraes, Gilberto; Fracalossi, Débora Machado

doi:10.1016/j.aquaculture.2014.09.035

Cited by 60 publications

(52 citation statements)

References 64 publications

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“…In the present study, feed intake decreased as lipid levels increased. Different results for these metabolic variables in fish of different species and feeding habits (Gominho‐Rosa et al., ) strengthen support for the idea that low feed consumption leads to low lipid and energy nutrient input in the organism and blood. The protein:lipid ratio also influenced blood parameters, which indicates that macronutrients can influence the blood.…”

Section: Discussionmentioning

confidence: 81%

Dietary protein:lipid ratio changes growth, digestive enzyme activity, metabolic profile and haematological parameters in hybrid surubim (Pseudoplatystoma fasciatum × Leiarius marmoratus)

et al. 2018

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Studies investigating improved protein:lipid ratios based on their effects on growth, nutrient utilization, digestive enzyme activities, blood metabolites and erythogram in tropical carnivorous fish are very scarce. This study evaluated the effect of different protein:lipid ratios on these parameters in the hybrid surubim Pseudoplatystoma corruscans × Leiarius marmoratus. Juvenile fish (8.90 ± 0.94 g initial weight) were fed 3% of total biomass for 60 days using four isoenergetic experimental diets with different protein:lipid ratios (9.00, 4.60, 3.54 and 1.78). Higher growth performance parameters were observed at higher protein:lipid ratios. The activities of intestine total alkaline protease, trypsin and lipase (U/mg protein) were not affected by dietary treatments. Chymotrypsin (U/mg protein) was higher in the 4.60 protein:lipid ratio group. Amylase (U/mg protein) was higher in intermediate groups. Blood glucose, total plasma protein, triglycerides, cholesterol and free amino acids decreased as the protein:lipid ratio decreased. Haematocrit was higher at the 9.00 and 4.60 protein:lipid ratios. Hybrid surubim showed metabolic adaptation to the different protein:lipid ratios tested. These results suggest that the 4.60 protein:lipid ratio showed the best protein‐sparing effect of lipids.

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Section: Discussionmentioning

confidence: 81%

Dietary protein:lipid ratio changes growth, digestive enzyme activity, metabolic profile and haematological parameters in hybrid surubim (Pseudoplatystoma fasciatum × Leiarius marmoratus)

et al. 2018

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“…It is thought that long intestines may contribute to starch digestibility (Gominho‐Rosa et al . ). The GI tract of herbivorous and omnivorous fish species can be >20 times the body length (Olsen & Ringø ), while for shrimp, the gut length is about 0.75 times the body length (Beseres et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Influence of different dietary carbohydrate sources on the growth and intestinal microbiota of Litopenaeus vannamei at low salinity

et al. 2016

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Because of the increasing market potential of Pacific white shrimp (Litopenaeus vannamei) and limited availability of coastal areas for production, culture of L. vannamei at low salinity is a growing trend throughout the world. Dietary manipulation could improve the growth performance of L. vannamei at low salinity. This study reared L. vannamei with glucose, sucrose and corn starch as dietary carbohydrate sources, respectively, at a low salinity. The results indicated that the sucrose and glucose feeding groups showed better growth performance. An Illumina‐based sequencing method was used to examine the intestinal bacterial composition and the results indicated that Proteobacteria were the most prevalent members, but abundance of Actinobacteria decreased while Firmicutes increased in the corn starch‐fed group. Furthermore, bacteria related to complex carbohydrate degradation were in lower abundance, whereas the abundance of opportunistic pathogenic bacteria increased in corn starch‐fed group than the other two groups, suggesting that the diet imposes selective pressure on the intestinal microbiota. Complex carbohydrates were not the ideal energy sources for L. vannamei at low salinity because the host has higher energy demand in the stressful conditions while the complex carbohydrate degradation efficiency of the gut microbiota in L. vannamei is limited.

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“…() also suggested that gelatinization decreases the size of the starch granules and increases surface area for the action of amylase, thus increasing the digestibility, as recently also reported by Gominho‐Rosa et al . ().…”

Section: Resultsmentioning

confidence: 97%

Feed processing affected the digestibility of carbohydrate sources for douradoSalminus brasiliensis

Moro¹,

Silva

Cyrino

2015

Aquacult Nutr

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Carbohydrate utilization by fish varies with feeding habits and feed processing. Extruded aquafeeds have increased digestibility of carbohydrate sources resulting from the cooking and gelatinization of this nutrient, making it readily available for all aquatic species. This study aimed at determining the effects of extrusion cooking of feeds in the digestibility of different dietary carbohydrate sources for dourado. Isonitrogenous and isoenergetic diets (530 g kg−1 crude protein and 20.80 MJ kg−1 gross energy) containing either corn, toasted cassava flour, wheat flour, broken rice, cassava starch, or corn starch, in extruded or pelletized form and added of chromic oxide as inert marker, were fed to groups of juvenile dourado (73.97 ± 12.0 g; n = 40) stocked in 500‐L polyethylene tanks. Extrusion cooking improved the digestibility of energy and/or starch of corn, cassava starch, wheat flour, rice and corn starch (P < 0.05), but did not affect digestibility of toasted cassava flour (P > 0.05). It is thus fair to infer that dourado, despite being a carnivorous species, is properly fit to digest wheat flour, rice and corn starch in natural form.

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Comparison between the omnivorous jundiá catfish (Rhamdia quelen) and Nile tilapia (Oreochromis niloticus) on the utilization of dietary starch sources: Digestibility, enzyme activity and starch microstructure

Cited by 60 publications

References 64 publications

Dietary protein:lipid ratio changes growth, digestive enzyme activity, metabolic profile and haematological parameters in hybrid surubim (Pseudoplatystoma fasciatum × Leiarius marmoratus)

Dietary protein:lipid ratio changes growth, digestive enzyme activity, metabolic profile and haematological parameters in hybrid surubim (Pseudoplatystoma fasciatum × Leiarius marmoratus)

Influence of different dietary carbohydrate sources on the growth and intestinal microbiota of Litopenaeus vannamei at low salinity

Feed processing affected the digestibility of carbohydrate sources for douradoSalminus brasiliensis

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