1999
DOI: 10.1016/s0044-8486(98)00413-x
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Comparative study of digestive enzymes in fish with different nutritional habits. Proteolytic and amylase activities

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Cited by 514 publications
(442 citation statements)
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“…The values for the digestive somatic and hepatosomatic indexes of the studied species were similar to those reported by HIDALGO et al (1999) for omnivores and carnivores species, except HSI values for omnivore species, which were lower in the present study. However, in this study no significant difference between the studied species was found ( Table 1), indicating that these parameters could not be used to determine the feeding habit.…”
Section: Resultssupporting
confidence: 89%
See 1 more Smart Citation
“…The values for the digestive somatic and hepatosomatic indexes of the studied species were similar to those reported by HIDALGO et al (1999) for omnivores and carnivores species, except HSI values for omnivore species, which were lower in the present study. However, in this study no significant difference between the studied species was found ( Table 1), indicating that these parameters could not be used to determine the feeding habit.…”
Section: Resultssupporting
confidence: 89%
“…The highest values of intestine total weight/ intestinal area were found in silver catfish and hassar (Table 1). In agreement with these results, HIDALGO et al (1999) also found higher values for both parameters in omnivore and herbivore species, followed by carnivore species. The presence of a stomach with thick muscular walls, which increase digestive tract weight, is an important factor to explain the lower values found in the digestive tract length and fish weight or digestive tract weight in traira and silver catfish.…”
Section: Resultssupporting
confidence: 89%
“…Não houve efeito da temperatura (média entre 26,8 e 28,8ºC) sobre a atividade da protease exógena, a exemplo do ocorrido nos estudos de Hidalgo et al (1999). Tanto o pH como a condutividade elétrica da água mantiveram-se na faixa aceitável de variação no ciclo de 24 horas.…”
Section: Resultsunclassified
“…Os valores da atividade da protease endógena em tucunarés, apesar de inferiores ao observado em pirarucus, foram superiores aos da atividade de proteases ácidas em carpas (Cyprinius carpio) (Hidalgo et al, 1999), o que, segundo esses autores, está relacionado ao tipo de trato digestório presente em carnívoros e onívoros. Em trabalhos realizados com "sea bass" (Lates calcifer) de hábito alimentar carnívoro e com "rabbitfish" (Siganus canaliculatus) de hábito alimentar onívoro, observou-se que as atividades das enzimas digestivas presentes no trato digestivo desses peixes dependem dos seus hábitos alimentares (Sabapathy & Teo, 1993).…”
Section: Resultsunclassified
“…Espécies onívoras de peixes não apresentam problemas para digerir o amido por secretarem amilase em todas as porções do intestino (Hepher, 1988;Hidalgo et al, 1999;Baldisserotto, 2002). O tambaqui, como espécie de peixe onívoro, apresenta maior atividade enzimática na região dos cecos pilóricos e intestino proximal (Toniolo, 2001).…”
Section: Resultsunclassified