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Effect of plant protein concentrates on nutrition physiology of L itopenaeus vannamei ( B oone, 1883) juveniles
Author(s) -
Maldonado C.,
Guillen S.,
Pantoja O.,
Arena L.,
EzquerraBauer M.,
AlvarezGonzález C. A.,
Cuzon G.,
Gaxiola G.
Publication year - 2012
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2011.02925.x
Subject(s) - biology , shrimp , litopenaeus , zoology , food science , protein digestibility , wheat gluten , gluten , ecology
This study was designed to test the effect of soy protein ( SPC ), wheat gluten ( WHG ) and potato protein ( PPC ), in vitro and in vivo digestibility of protein and energy in the juveniles Litopeneaus vannamei . A completely random design was used with nine 400‐L tanks (with three repetitions by treatment). Ten respirometric chambers (500 mL ) were used for energy distribution. In vitro digestibility for SPC (8.8%) was higher than for PPC (5.8%) and for WHG (4.3%, P < 0.05). Diets’ degree of hydrolysis ranged between 0.75% and 1.2%, with lowest value in potato protein concentrate diet (0.75 ± 0.09%, P < 0.05). No significant differences were obtained in apparent digestibility coefficient ( ADC ) for protein (63.4–74.1%). ADC for amino acids ranged between 80% and 90%. Daily growth coefficient ranged from 0.86% to 1.1% day −1 , being the best in soybean protein concentrate diet ( SPCd ) ( P < 0.05). Significant differences on heat increment were observed ( P < 0.05); highest value was in wheat gluten diet (1.0 ± 0.1 kJ shrimp day −1 ) that coincided with a peak of trypsin specific activity (16.5 ± 3.7 mU mg protein −1 ). Highest retained energy for growth was observed in shrimp fed SPCd (0.7 ± 0.03 kJ day −1 , P < 0.05). Muscle collagen content presented a minimum of bands with SPCd , whereas shrimp post‐mortem collagenase activity was not affected by any of the three diets ( P > 0.05).