Digestibility of swine liver and meat protein hydrolysates by Nile tilapia

IF 0.7 4区农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY

Pesquisa Agropecuaria Brasileira Pub Date : 2022-01-01 DOI:10.1590/s1678-3921.pab2022.v57.03032

Matheus dos Santos Cardoso, Luciana Valéria Nettson, Jaqueline Marcela Azambuja de Freitas, V. Lewandowski, A. Signor, W. Boscolo, F. Bittencourt

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引用次数: 0

Abstract

Abstract The objective of this work was to evaluate the digestibility of the protein, amino acids, and gross energy of swine liver and meat hydrolysates by Nile tilapia (Oreochromis niloticus). The fish were distributed into 12 tanks with conical bottoms, in a completely randomized design, and fed with the three following diets, with four replicates each: a reference diet with soybean and fish meal; and two test diets, one with swine liver hydrolysate and the other with swine meat hydrolysate. The coefficients of apparent digestibility were high for both hydrolysates, being above 83% for dry matter, 95% for crude protein, and 92% for gross energy. Regarding amino acids, the coefficients remained at 98–100% for the two hydrolysates. The digestibility percentages of the hydrolysates were higher than those of the protein ingredients, both of plant and animal origin, commonly used in the formulation of diets for this fish species. The tested hydrolysates have potential to be used in the formulation of diets for Nile tilapia.

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尼罗罗非鱼对猪肝和肉蛋白水解物的消化率

摘要研究尼罗罗非鱼(Oreochromis niloticus)对猪肝和猪肉水解物中蛋白质、氨基酸和总能量的消化率。采用完全随机设计，将试验鱼分配到12个锥形底槽中，分别饲喂3种饲料，每组4个重复:参考饲料中添加大豆和鱼粉;试验饲粮分别添加猪肝水解物和猪肉水解物。两种水解产物的表观消化率系数均较高，干物质消化率达83%以上，粗蛋白质消化率达95%以上，总能消化率达92%以上。对于氨基酸，两种水解产物的系数保持在98-100%之间。水解液的消化率高于该鱼类饲料中常用的植物和动物来源的蛋白质成分的消化率。经测试的水解物有可能用于尼罗罗非鱼的饲料配方。

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来源期刊

Pesquisa Agropecuaria Brasileira 农林科学-农业综合

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

9-18 weeks

期刊介绍： Pesquisa Agropecuária Brasileira – PAB – is issued monthly by Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA, affiliated to Ministry of Agriculture, Livestock and Food Supply. PAB publishes original scientific-technological articles on Plant Physiology, Plant Pathology, Crop Science, Genetics, Soil Science, Food Technology and Animal Science. Its abbreviated title is Pesq. agropec. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.