生物
动物科学
麸皮
农学
肥料
生物量(生态学)
作物
磷
产量(工程)
生态学
化学
有机化学
冶金
材料科学
原材料
标识
DOI:10.1080/10454438.2015.1006496
摘要
We evaluated the combined effects of different green water sources and feed supplements on Artemia biomass production and economic efficiency. A two-factor experiment was set up with two green water types produced from the ratios of nitrogen and phosphorus (N:P = 5 and N:P = 10) in combination with two types of supplemental feed (rice bran or pig manure). After 12 weeks of culture, total Artemia biomass yield with the N:P = 5 treatment (2.29 ton ha−1 crop−1) was 14% higher than that with the N:P = 10 treatment (1.97 ton ha−1 crop−1), although this difference was not significant (P > 0.05). There was no significant interaction between green water and supplemental feeding treatments for the final yield of Artemia biomass. Comparative cost-benefit analysis showed that the treatment of N:P = 5 combined with pig manure attained a significantly higher net profit and cost/benefit ratio than the other treatments.
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