期刊
VETERINARY AND ANIMAL SCIENCE
卷 3, 期 -, 页码 4-9出版社
ELSEVIER
DOI: 10.1016/j.vas.2017.04.002
关键词
Antioxidant capacity; Methionine; Rainbow trout; Soy protein isolate; Taurine
资金
- Program of Support to Research and Technology Innovation Projects (PAPIIT) of the UNAM [IN213115]
A 70-days feeding trial was performed to determine the effect of diets with whole plant-origin proteins added with different ratios of taurine:methionine on the growth, macrophage burst activity and antioxidant capacity of rainbow trout (Oncorhynchus mykiss) fingerlings. Triplicated groups of 70 fingerlings of an initial weight of 0.54 +/- 0.1 g (mean +/- +/- SD) were fed diets with soy protein isolate and Spirulina powder as protein sources (46% crude protein) and added (10 g/kg diet) with different taurine and methionine ratios: 0.0 and 10.0 (diet TO/M100), 2.5 and 7.5 (diet T25/M75), 5.0 and 5.0 (diet T50/M50), 7.5 and 2.5 (diet T75/M25) and 10.0 and 0.0 (diet T100/M0), respectively. At the end of the trial, growth performance, lipid and protein contents in liver and muscle, macrophage burst activity and liver antioxidant activity, were determined. The growth performance, macrophage burst activity and antioxidant activity were improved as the taurine increased in the diets. The ratio of 7.5 and 2.5 g/kg of taurine:methionine in diets with SPI and Spirulina powder as protein sources (diet T75/M25), seems to be the best inclusion for rainbow trout fingerlings.
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