Distillers' dried grains with soluble in diets for Pacu, Piaractus mesopotamicus juveniles: Growth performance, feed utilization, economic viability, and phosphorus release

Author(s)

Oliveira, Katia R. B. ^{[1, 2]} ; Segura, Julio G. ^{[1, 3]} ; Oliveira, Beatriz A. ^[1] ; Medeiros, Adja Cristina L. ^{[1, 4]} ; Zimba, Rosa D. ^{[1, 5]} ; Viegas, Elisabete M. M. ^[1]

Affiliation

^[1] Sao Paulo State Univ, Campus Jaboticabal, BR-14884900 Jaboticabal, SP - Brazil

^[2] Univ Fed Lavras, Ave Doutor Sylvio Menicucci 1001, BR-37200000 Lavras, MG - Brazil

^[3] Cent Univ Ecuador, Aquaculture Lab, Jeronimo Leiton S-N & Gato Sobral, Quito - Ecuador

^[4] Felipe Camarao St 337, BR-59012480 Natal, RN - Brazil

^[5] Escola Super Desenvolvimento Rural ESUDER, 5 Congresso, Zona De Expansao, Vilankulo Inham - Mozambique

• Document type: Journal article
• Source: ANIMAL FEED SCIENCE AND TECHNOLOGY; v. 262, APR 2020.
• Web of Science Citations: 1

Abstract

Three experiments were conducted to evaluate corn distillers' dried grains with soluble (DDGS) digestibility and the effects of soybean meal replacement by corn DDGS in diets for P. mesopotamicus on growth performance, feed utilization, economic viability, and phosphorus release. In experiment 1, six replicates of fish (13 +/- 0.3 g mean weight) were fed the referential and test diets to evaluate DDGS apparent digestibility for dry matter, protein, energy, lipids, and phosphorus. In experiment 2, four replicates of fish (21 +/- 0.2 g mean weight) were fed experimental diets (0, 100, 200, 300, or 400 g/kg of DDGS inclusion) for 100 days. In experiment 3, five replicates of fish (27 +/- 1.4 g mean weight) were fed the experimental diets to measure DDGS phosphorus release in the water. Corn DDGS presented a low apparent digestibility coefficient (ADC) for dry matter and energy, and high ADC for protein, lipids, and phosphorus. The feed conversion ratio and protein efficiency ratio were positively affected by DDGS inclusion. Dietary costs of weight gain were reduced by 26 % with soybean meal replacement by DDGS. Total phosphorus release in the water decreased with increasing levels of DDGS in the diets. Thus, the results indicate that the inclusion of 400 g/kg of corn DDGS as a plant protein source in diets for P. mesopotamicus in total replacement of soybean meal improved fish production and reduced the environmental impact. (AU)

• FAPESP's process: 14/16685-5 - Corn distiller's dried grains with soluble in diets for pacu juveniles Piaractus mesopamicus (Holmberg 1987)
• Grantee: Katia Rodrigues Batista de Oliveira
• Support Opportunities: Scholarships in Brazil - Master