Growth and Stress Resistance of Advanced Sized Nile Tilapia Fed Diets Containing Fuel-Based DDGS and Yeast

Date
2012-01-01
Authors
Schaeffer, Travis
Brown, Michael
Rosentrater, Kurt
Rosentrater, Kurt
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Agricultural and Biosystems Engineering
Abstract

A feeding trial investigated the use of a diet comprised of yeast and distillers' dried grain with solubles (DDGS) to improve growth, feed utilization, and stress resistance of tilapia. Six diets were formulated (as-fed basis) with 8% menhaden fishmeal and 20%, 25%, or 30% DDGS with or without 0.125% yeast probiotic. Aquaria (110 L) were stocked with eight Nile tilapia (mean weight = 43.6 ± 1.3 g) with four replicate aquaria per diet. Weight gains, food conversion ratios (FCR), protein efficiency ratios (PER), blood cortisol levels, and survival rates did not significantly differ (P ≥ 0.1) among or between fish fed differing diets. Overall, results indicated that the inclusion of low-level yeast probiotics did not increase the utilization of DDGS nor did it improve the growth or acute stress resistance (i.e., short-term stressor) of juvenile Nile tilapia.

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This article is from Journal of Applied Aquaculture 24, no. 3 (2012): 210–220, doi:10.1080/10454438.2012.679133.

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