期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 61, 期 30, 页码 7341-7348出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf401957z
关键词
defatted microalgal biomass; soybean meal; amino acids; growth; broiler chickens
资金
- USDA/DOE Biomass RD Initiative
Three experiments were conducted to determine if defatted diatom Staurosira sp. biomass (DFA) (Cellana, Kailua-Kona, HI, USA) from biofuel production could replace a portion of soybean meal (SBM) and (or) corn in diets for broiler chicks. In experiment 1, 2-day-old chicks were fed diets with DFA at 0% (control), 7.5% replacing SBM, or 7.5 and 10% replacing SBM and corn. Chicks fed the DFA-containing diets had lower body weight gain (P < 0.05) than the controls in the starter period. Two follow-up experiments, experiments 2 and 3, indicated that supplementing the 7.5% DFA diet (replacing SBM) with amino acids, but not exogenous protease or electrolytes, restored growth performance of chicks to the control levels. Responses of plasma and liver biomarkers and gross examination of digestive tract showed no toxicity of DFA. In conclusion, DFA could substitute for 7.5% of SBM alone, or in combination with corn, in diets for broiler chicks when appropriate amino acids are added.
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