Open AccessEffects of Dietary Fibre Concentrates on growth performance and digestive enzyme activities of jundiá ( Rhamdia quelen)
Author(s) -
Goulart F.R.,
Silva L.P.,
Loureiro B.B.,
Adorian T.J.,
Mombach P.I.,
Petkowicz C.L.O.
Publication year - 2017
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.12400
Subject(s) - prebiotic , biology , pectin , mannan , food science , glucan , digestive enzyme , dietary fibre , polysaccharide , fish <actinopterygii> , acclimatization , zoology , enzyme , biochemistry , botany , fishery , lipase
This study was conducted to investigate the prebiotic effect of different Dietary Fibre Concentrates ( DFC ) (Mucilage = MG ; Pectin = PN or β‐glucan + mannan = βg + M) on growth and somatic parameters, body composition and digestive enzyme activities of jundiá ( Rhamdia quelen ). After acclimation, fish (7.16 ± 0.06 g) were allocated into 24 tanks (30 fish per tank) and triplicate groups were fed with Control diet (0 g kg −1 of DFC ); diet supplemented with 5 g kg −1 commercial prebiotic ( CP ) or diets supplemented with 5 or 10 g kg −1 diet of MG ; PN or βg + M. At the end of the trial (8 weeks), growth was significantly ( P < 0.05) higher in fish fed diets supplemented with DFC s and did not differ from animals supplemented with CP . The animals that were fed Control diet presented a body protein content higher compared to those supplemented with diets containing pectin or β‐glucan + mannan ( P < 0.05). However, fish fed diets added with β‐glucan + mannan yielded a higher level of protein deposited in the whole body. The activity of digestive enzymes was lower in the group supplemented with Pectin. Results indicate that supplementation with DFC s in the diet had positive effects on the performance of jundiá and are prebiotic potential candidate.