Disponibilidade Do Fósforo Em Alimentos De Origem Vegetal: Atuação Na Nutrição De Peixes

Pontes, Tânia Cristina; Cagol, Luana; Dutra, Fabrício Martins; Portz, Leandro

doi:10.25110/arqvet.v18i3.2015.5542

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Bone mineral composition may vary with age, size, and reproductive stage of animals. The presence of anti-nutritional factors, such as phytic acid, which is common in plant-based foods, affect nutrient digestibility, especially that of minerals such as phosphorus, decreasing its absorption by up to 70% (Rocha et al, 2008;Pontes et al, 2015). Phytase supplementation in the present study did not improve mineral utilization.…”

Section: Discussioncontrasting

confidence: 45%

Sunflower meal with and without phytase supplementation in diets for silver catfish (Rhamdia quelen) juveniles

Weiler

Pessini

Sanchez

et al. 2019

Rev Colom Cienc Pecua

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Harina de girasol con y sin suplementación de fitasa en dietas para juveniles de bagre (barbudo, Col.;Rhamdia quelen) Farelo de girassol com e sem suplementação de fitase em dietas para juvenis de jundiá (Rhamdia quelen) meal with and without phytase supplementation in diets for silver catfish (Rhamdia quelen) juveniles. Rev Colomb Cienc Pecu 2019; 32(4): 285-297. AbstractBackground: The cost of feed in fish farming can exceed 70% of the total costs. Thus, the feed industry have sought to formulate balanced diets including low-cost by-products. Objective: To evaluate sunflower meal as a partial substitute (0, 10, and 20%) for soybean meal, with or without phytase supplementation (1,500 FTU/kg) in isoproteic (27% crude protein (CP)) and isoenergetic diets (3,400 kcal/ED/kg of feed) for silver catfish (Rhamdia quelen) juveniles. Methods: A total of 360 fish (weight: 15.77 ± 0.56 g) were randomly distributed in 24 tanks in a completely randomized design following a factorial scheme (3x2) with 4 replicates. The fish were evaluated on the following variables after 90 days: productive performance, hematological variables, histology of intestinal tissue, bromatological composition of carcass, and composition of bone mineral matter. Results: 20% dietary inclusion of sunflower meal improved weight gain and protein efficiency. No difference was observed in the other treatments and no interactions were observed between the other factors. Conclusion: 20% sunflower meal can be included in the feed of silver catfish as a substitute for soybean meal. Phytase inclusion (1,500 FTU/kg) did not improve the nutritional value of the treatments. ResumenAntecedentes: El costo de la alimentación en piscicultura pueden superar el 70% del costo total. Las industrias de alimentos para peces han intentado formular dietas balanceadas con subproductos de menor valor en el mercado para minimizar costos. Objetivo: Evaluar la harina de girasol como sucedáneo parcial (0, 10 y 20%) de la torta de soya, suplementada o no con fitasa (1.500 FTU/kg) en dietas isoprotéicas (27% de PB) e isoenergéticas 3400 kcal / ED / kg de ración) para bagre (barbudo, Col.; Rhamdia quelen). Métodos: Los peces, 360 juveniles (15,77 ± 0,56 g), se distribuyeron aleatoriamente en 24 unidades experimentales, en un diseño completamente al azar, en esquema factorial (3x2) y 4 repeticiones. A los 90 días se evaluó: desempeño productivo, variables hematológicas, histología de tejido intestinal y composición bromatológica de la carcasa y de la materia mineral de los huesos. Resultados: La inclusion de 20% de harina de girasol mejoró la ganancia de peso de los peces y la tasa de eficiencia proteica de la ración, sin diferencia para las otras evaluaciones ni interacción entre los demás factores evaluados. Conclusión: La harina de girasol se puede utilizar en un 20% de la ración del bagre (barbudo, Col.) como sucedáneo a la harina de soja. La inclusión de fitasa (1.500 FTU/kg) no mejoró el valor nutritivo de estas raciones. Palabras clave: acuacultura; acuicultura; bagre; barbudo;...

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Section: Discussioncontrasting

confidence: 45%

Sunflower meal with and without phytase supplementation in diets for silver catfish (Rhamdia quelen) juveniles

Weiler

Pessini

Sanchez

et al. 2019

Rev Colom Cienc Pecua

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“…Factors such as food supply, nutrient balance and their quality influence the proper metabolism of fish; one of which is the phosphorus concentration in feeds (Pontes et al 2015). Under adequate nutritional conditions, phosphorus promotes nutrients availability, which are directed to protein synthesis Interaction.…”

Section: Discussionmentioning

confidence: 99%

Replacement of corn by sorghum and phytase supplementation in silver catfish (Rhamdia quelen) diets: growth performance, physiological variables and bone mineralization

Rodrigues

Sanchez

Pessini

et al. 2020

Journal of Applied Animal Research

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This study aimed at assessing productive growth performance, blood physiology, intestinal histology, body composition and bone mineralization parameters of silver catfish juveniles fed diets containing different inclusion levels of sorghum, considering three combinations (0%, 50% or 100%), supplemented or not with phytase enzyme (0 and 1500 FTU kg −1 ). The apparent feed conversion and specific growth rate were benefited by supplemented diets (P < 0.05). The highest protein efficiency rate was obtained for the supplemented diet containing corn (P < 0.05). The viscerosomatic index was lower when corn/sorghum diet (P < 0.05) was offered, whilst the hepatosomatic index was lower in corn and corn/sorghum diets regardless of supplementation (P < 0.05). Regarding blood parameters, variations were observed (P < 0.05), however they were kept within the limits for the species. Histomorphometry variables also displayed variations, which were observed in fish fed with sorghum and sorghum/corn diets, supplemented or not (P < 0.05). Proximate composition of carcass varied for both aether extract and mineral matter for supplemented diets (P < 0.05). A variation of Ca content (P < 0.05) regarding bone mineralization was observed when corn and sorghum were used in the same proportion. Sorghum replacement of corn in diets for R. quelen may be a feasible alternative, and phytase supplementation with improves fish performance.

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Disponibilidade Do Fósforo Em Alimentos De Origem Vegetal: Atuação Na Nutrição De Peixes

Cited by 2 publications

References 18 publications

Sunflower meal with and without phytase supplementation in diets for silver catfish (Rhamdia quelen) juveniles

Sunflower meal with and without phytase supplementation in diets for silver catfish (Rhamdia quelen) juveniles

Replacement of corn by sorghum and phytase supplementation in silver catfish (Rhamdia quelen) diets: growth performance, physiological variables and bone mineralization

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