Digestive proteinases of Brycon orbignyanus (Characidae, Teleostei): characteristics and effects of protein quality

García‐Carreño, Fernando; Albuquerque-Cavalcanti, Cristiane; Toro, M. A. Navarrete del; Zaniboni‐Filho, Evoy

doi:10.1016/s1096-4959(02)00038-6

Cited by 59 publications

(61 citation statements)

References 11 publications

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“…However, some activity was also detected at pH 9.0 and 10.0 for all species, mainly in the anterior intestine. On the other hand, GARCÍA-CARREÑO et al (2002) verified that the optimum pH for intestinal enzymes of Brycon orbignyanus was 10.0. The results observed at high alkaline pHs (9.0 and 10.0) are probably due to other alkaline proteases as carboxipeptidase-like, elastase-like or collagenaselike activities (HIDALGO et al, 1999).…”

Section: Discussionmentioning

confidence: 83%

“…This allows fish to explore a wide range of food resources and maximize the use of available food in the environment (PERETTI & ADRIAN, 2008). The digestive potential of fish is highly variable, changing with species, age, size, food and feeding history, stage of maturity and temperature (GARCÍA-CARREÑO et al, 2002). The analysis of digestive enzymes provides information on fish nutritional physiology and on their ability to take advantage of the different nutritional fractions of the feed (TENGJAROENKUL et al, 2000;ODEDEYI & FAGBENRO, 2010;LAZZARI et al, 2010;2015).…”

Section: Introductionmentioning

confidence: 99%

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Different feeding habits influence the activity of digestive enzymes in freshwater fish

et al. 2017

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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.

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Section: Discussionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Different feeding habits influence the activity of digestive enzymes in freshwater fish

et al. 2017

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“…Acid protease is more abundant in the stomach of fishes, mainly in carnivorous species (Garcia-Carreño et al, 2002). However, high proteolytic potential is also reported in non-carnivorous fishes (Hidalgo et al, 1999;De Almeida et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Protein sources and digestive enzyme activities in jundiá (Rhamdia quelen)

Lazzari

Neto

Pedron

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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Digestive enzymes activity influence feed utilization by fish, and its understanding is important to optimize diet formulation. This study reports the digestive enzyme activities of jundiá juveniles fed diets with protein sources. Fish were fed six experimental diets for 90 days: MBY (meat and bone meal + sugar cane yeast), SY (soybean meal + sugar cane yeast), S (soybean meal), MBS (meat and bone meal + soybean meal), FY (fish meal + sugar cane yeast) and FS (fish meal + soybean meal), and then sampled every 30 days and assayed in two intestine sections for digestive enzymes -trypsin, chymotrypsin and amylase -activities; gastric protease was assayed in the stomach. Digestive and hepatosomatic index, intestinal quotient, digestive tract length and weight gain were also measured. Trypsin and chymotrypsin activities were higher (p < 0.0001) in fish fed diets containing animal protein sources (MBY, MBS, FY and FS diets). Alkaline proteases were negatively affected by dietary soybean meal in the SY and S diets. Amylase activity had greater variation between diets and intestine sections. Fish fed MBY and MBS diets showed higher gastric protease activity (p < 0.0001). Weight gains were higher in fish fed the MBS and FS diets (p < 0.05). Highest values (p < 0.05) of digestive tract length were observed in fish fed MBS and FY diets, but no correlation with enzymes activities was found. Hepatosomatic index (HSI) was affected by diet composition. Dietary composition influenced digestive enzymes activities of jundiá. Key words: digestion, nutrition, soybean meal, meat and bone meal, fish mealFontes protéicas e atividade de enzimas digestivas em jundiás (Rhamdia quelen) RESUMO: As enzimas digestivas influenciam a utilização dos alimentos em peixes, e seu conhecimento é importante para otimizar a formulação de dietas. Este trabalho descreve a atividade de enzimas digestivas em juvenis de jundiá alimentados com fontes protéicas. Os peixes foram alimentados com seis dietas (90 dias): MBY (farinha de carne e ossos + levedura de cana), SY (farelo de soja + levedura de cana), S (farelo de soja), MBS (farinha de carne e ossos + farelo de soja), FY (farinha de peixe + levedura de cana) e FS (farinha de peixe + farelo de soja). A cada 30 dias, foram analisadas as enzimas digestivas (tripsina, quimiotripsina e amilase) no intestino. No estômago, foi mensurada a protease ácida. Foram estimados os índices digestivo e hepato-somático, quociente intestinal, comprimento do trato digestório e ganho em peso.

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“…Other Brycon, such as Brycon melanopterus (Reimer, 1982), Brycon cephalus (Pizango-Paima et al, 2001;Figueiredo-Garutti et al, 2002), Brycon vermelha Lima and Castro, 2000and Brycon ferox Steindachner, 1877(Lima and Castro, 2000, Brycon orbignyanus (García-Carreño et al, 2002;Sá and Fracalossi, 2002), Brycon microlepis Perugia, 1897 (Sabino and Sazima, 1999), Brycon falcatus Müller and Troschel, 1844 (Melo et al, 2004), Brycon lundii (Alvim and Peret, 2004) and Brycon sp. (Jatuarana) (Goulding, 1980), have been characterized as feeding on an omnivorous diet in the most diverse environments.…”

Section: Discussionmentioning

confidence: 99%

The role of riverine forests for food supply for the omnivorous fish Brycon opalinus Cuvier, 1819 (Characidae) in the Serra do Mar, Southeast Brazil

2008

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The purpose of this study was to characterize the diet of the fish Brycon opalinus (Characidae) seasonally and locally, allowing for the determination of its food items and trophic relations with the aquatic and terrestrial environments. The study area encompasses three rivers (Paraibuna, Ipiranga and Grande) in the basin of the Paraibuna, southeast Brazil. Twelve monthly collections were made from January to December 2004. The degree of stomachic repletion and of accumulated visceral fat was analyzed, as was the intestinal length in each class of total length. The frequency of occurrence and the degree of food preference (DFP) of the food items of Brycon opalinus were determined by separating the vegetal and animal items, autochthonous and allochthonous, by insect order and vegetal family consumed. The frequency of occurrence of items of animal origin was found to be equivalent to that of vegetal origin, thus characterizing the omnivorism of Brycon opalinus feeding.Keywords: Atlantic rainforest, Brycon opalinus, frugivores, omnivorism, seed dispersal. O papel das florestas ribeirinhas na alimentação do peixe onívoro Brycon opalinus (Characidae) na Serra do Mar, sudeste do Brasil ResumoO objetivo foi caracterizar a dieta do peixe Brycon opalinus (Characidae) sazonalmente e localmente, sendo possível determinar os itens alimentares e as relações tróficas com os ambientes aquáticos e terrestres. A área de estudo abrange três rios (Paraibuna, Ipiranga e Grande) da bacia do Paraibuna, Sudeste do Brasil. Foram realizadas doze coletas mensais de janeiro a dezembro de 2004. O grau de repleção estomacal e o grau de acúmulo de gordura visceral foram analisados, assim como o comprimento intestinal em cada classe de comprimento total. A freqüência de ocorrência e o grau de preferência alimentar (GPA) dos itens alimentares de Brycon opalinus foram obtidos separando-se os itens vegetais e animais, autóctones e alóctones, por ordem de insetos e por família de vegetais consumidos. A freqüência de ocorrência dos itens de origem animal equivale à dos de origem vegetal, caracterizando assim a onivoria na alimentação de Brycon opalinus.Palavras-chave: Mata Atlântica, Brycon opalinus, frugívoros, onivoria, dispersão de sementes.

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Digestive proteinases of Brycon orbignyanus (Characidae, Teleostei): characteristics and effects of protein quality

Cited by 59 publications

References 11 publications

Different feeding habits influence the activity of digestive enzymes in freshwater fish

Different feeding habits influence the activity of digestive enzymes in freshwater fish

Protein sources and digestive enzyme activities in jundiá (Rhamdia quelen)

The role of riverine forests for food supply for the omnivorous fish Brycon opalinus Cuvier, 1819 (Characidae) in the Serra do Mar, Southeast Brazil

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