Digestibility of animal and vegetable protein ingredients by pirarucu juveniles,Arapaima gigas

Revista Brasileira de Zootecnia

Souza, Ricardo Henrique Bastos de⁵  Passinato, Érica Bevitório²  Cipriano, Filipe dos Santos¹  Lima, Kauana Santos de³  Braga, Luís Gustavo Tavares²  Tonini, William Cristiane Teles⁴ 

[1] Universidade Federal de Minas Gerais, Belo Horizonte, Brazil;Universidade Estadual de Santa Cruz, Ilhéus, Brazil;Universidade Federal da Bahia, Salvador, Brazil;Universidade do Estado da Bahia, Xique-Xique, Brazil;Universidade Federal de Rondônia, Presidente Médici, Brazil

关键词:  amino acid;    carnivore species;    fish nutrition;    nutritional valueIntroductionPirarucu (Arapaima gigas) is a carnivorous fish and an important source of income for fishermen in the region around the Amazon basin;   

DOI  :  10.1590/S1806-92902016001000001

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The objective of this study was to determine the apparent digestibility coefficients of energy, protein, and amino acids in protein ingredients by pirarucu juveniles. A test was conducted with six protein ingredients: meat and bone meal, fish meal, hydrolyzed feather meal, poultry by-product meal, soybean meal, and corn gluten meal. Three repetitions were used for each tested ingredient. A reference feed was used with 430 g kg−1 crude protein and 19.63 kJ g−1 gross energy. The test feeds consisted of the replacement of 30% of the reference feeds with the test ingredients. Chromium oxide was added to the feeds at 1 g kg−1 as an external marker. Eighteen juveniles with an average weight of 235±36 g were used. The best apparent digestibility coefficients of protein were found for fish meal, followed by the poultry by-product meal and meat and bone meal. However, except for gluten, all the tested ingredients presented protein digestibilities above 0.70. The crude energy apparent digestibility coefficient was higher for animal ingredients, above 0.75, than for vegetable ingredients, which presented values below 0.60. Pirarucu efficiently uses the protein from the tested ingredients, regardless of origin. However, it has a preferential ability to use the energy from animal ingredients.

【 授权许可】

Unknown