Data/hora: 06/06/2024 04:29:16

Provedor de dados: | 65
País: | Brazil
Título: | Different feeding habits influence the activity of digestive enzymes in freshwater fish
Autores: | Gioda,Carolina Rosa; Pretto,Alexandra; Freitas,Carine de Souza; Leitemperger,Jossiele; Loro,Vania Lucia; Lazzari,Rafael; Lissner,Leandro Ademar; Baldisserotto,Bernardo; Salbego,Joseânia.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Freshwater fishes; Feeding habits; Enzymatic activity; Amylase; Alkaline protease; Maltase; Trypsin.
Resumo: | ABSTRACT: The aim of this study was to verify the activity of some digestive enzymes in four fish species with different feeding habits. Knowledge of these enzymatic activities can help us to understand the species' digestive processes. The species chosen for this study were Ctenopharyngodon idella (herbivore), Rhamdia quelen (omnivore), Leporinus obtusidens (omnivore) and Hoplias malabaricus (carnivore). The digestive tract of these species was divided into four portions to estimate enzymatic activity: stomach, anterior, mid and posterior intestine.  Ctenopharyngodon idella had the highest amylase and maltase activities in all portions of the gut, followed by L. obtusidens . The highest trypsin activity was observed in all gut portions of H. malabaricus, followed by the mid intestine of  L. obtusidens and the anterior intestine of  C. idella . The highest chymotrypsin activity was found in all portions of  C. idella followed by the anterior intestines of R. quelen, L. obtusidens and H. malabaricus . In the stomach, acid protease activity was significantly lower in  R. quelen and L. obtusidens compared to H. malabaricus. Ctenopharyngodon idella showed high activity of enzymes that hydrolyze carbohydrates, represented in this study by amylase and maltase and H. malabaricus showed higher protease activity and low amylase activity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300406
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20160113
Formato: | text/html
Fonte: | Ciência Rural  v.47 n.3 2017
Fonte: | info:eu-repo/semantics/openAccess