000 02911nab a2200397 c 4500
001 koha000923656
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007 cr |
008 221110|2021 sz s a eng d
024 7 _a10.3390/ani11020369
_2doi
035 _akoha000923656
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 4 _aThe digestive function of Pseudoplatystoma punctifer early juveniles is differentially modulated by dietary protein, lipid and carbohydrate content and their ratios
_cD. Castro-Ruiz, K. B. Andree, M. M. Solovyev [et al.]
336 _aТекст
337 _aэлектронный
504 _aБиблиогр.: 92 назв.
520 3 _aThe Neotropical catfish Pseudoplatystoma punctifer is a promising candidate species for aquaculture diversification in the Amazon basin. However, optimized feeding strategies are needed to improve growth and survival during the early life stages. In order to determine the nutritional needs of early juveniles, the influence of four diets containing different protein and lipid content in their digestive physiology and performance was evaluated. To do so, the gene expression and the activity of the main digestive enzymes, the histology of the digestive organs, and the incorporation of the dietary macronutrients in the body tissue of fish fed the different diets were analyzed. The diet containing the highest protein and lipid content promoted the fastest development of the digestive capacities, resulting in a better growth and survival that increased sixfold and twofold, respectively, in comparison to previous feeding protocols. Lipids were favored over carbohydrates as a source of energy and excessive carbohydrate content led to unbalanced lipid metabolism and fat deposition in the liver. This study provided new knowledge on the molecular and biochemical mechanisms underlying nutrient digestion in this species and on the nutritional needs of early juveniles, which represents a significant contribution towards the establishment of its commercial culture.
653 _aпятнистый тигровый лопатоносный сом
653 _aаквакультура
653 _aАмазонка, река
653 _aпищевые потребности
653 _aранняя молодь
655 4 _aстатьи в журналах
_9852159
700 1 _aCastro-Ruiz, Diana
_9852158
700 1 _aAndree, Karl B.
_9473160
700 1 _aSolovyev, Mikhail M.
_9473161
700 1 _aFernández-Méndez, Christian
_9852160
700 1 _aGarcía-Dávila, Carmen
_9852161
700 1 _aCahu, Chantal
_9852162
700 1 _aGisbert, Enric
_9480513
700 1 _aDarias, Maria J.
_9852163
773 0 _tAnimals
_d2021
_gVol. 11, № 2. P. 369 (1-27)
_x2076-2615
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000923656
908 _aстатья
999 _c923656