Apparent digestibility coefficients for amino acids of feed ingredients in tambaqui (Colossoma macropomum) diets



Título del documento: Apparent digestibility coefficients for amino acids of feed ingredients in tambaqui (Colossoma macropomum) diets
Revue: Revista Brasileira de Zootecnia
Base de datos: PERIÓDICA
Número de sistema: 000445485
ISSN: 1516-3598
Autores: 1
2
2
2
3
1
Instituciones: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Centro de Aquicultura, Jaboticabal, Sao Paulo. Brasil
2Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Ciencias Agrarias e Veterinarias, Jaboticabal, Sao Paulo. Brasil
3Instituto de Pesca, Sao Jose do Rio Preto, Sao Paulo. Brasil
Año:
Volumen: 49
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés This study evaluated the apparent digestibility coefficients (ADC) of essential (EAA) and non-essential (NEAA) amino acids of 13 ingredients for tambaqui (Colossoma macropomum) diets. Proteic and energetic ingredients were analyzed separately. The trial with energetic and proteic ingredients were arranged in a randomized block design, with four replicates: energetic ingredients (corn, wheat bran, broken rice, and sorghum) with four treatments, whereas proteic ingredients (corn gluten meal, soybean meal, poultry byproduct meal, salmon meal, fish meal [tilapia processing residue], wheat gluten meal, feather meal, cottonseed meal, and alcohol yeast [spray dried]) with nine treatments. Each block was considered as one round of fecal collection. A total of 420 tambaqui juveniles (mean initial weight: 70±8.58 g) were used. Among energetic ingredients, corn (94.6%) and wheat bran (91.9%) had the highest ADCEAA, followed by broken rice (75.7%), and sorghum (72.8%). On average, ADCEAA and ADCNEAA values of proteic ingredients were 79.5-98.5%, except for alcohol yeast (ADCEAA: 68.4 and ADCNEAA: 76.7%). Tryptophan was the first limiting amino acid in most ingredients tested and had the lowest chemical scores (0.06-0.51), except for wheat bran, corn gluten meal, and soybean meal, in which lysine was the first limiting amino acid. Soybean meal had the highest digestible essential amino acid index (EAAI: 1.02) and the most balanced amino acid profile, whereas wheat gluten meal had the lowest EAAI (0.48). Overall, tambaqui was very efficient to digest proteic and energetic ingredients
Disciplinas: Medicina veterinaria y zootecnia
Palabras clave: Pesca,
Nutrición animal,
Tambaqui,
Colossoma macropomum,
Digestibilidad,
Aminoácidos
Keyword: Fisheries,
Animal nutrition,
Tambaqui,
Colossoma macropomum,
Digestibility,
Amino acids
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