Back L. Yong
Guangxi Aquatic Products Institute, Guangxi, China
Abstract
Application for a long-term period 2 ppm EM liquid into the pond can help
purify the water effectively. The survival rate of shrimps reaches 61.69
percent, the output is 199 kilograms per mu and the profit is 2303.55 yuan.
The output is 31.5 kilograms more than that of the check group and the
profit is 871.73 yuan higher. Provided that water quality is improved by
EM technology, 2 ppm liquid is added to feeders for fermentation and than
are poured into the pond. The outcome shows the survival rate reaches 73.13
percent, output is 228.5 kilograms per mu and profit is 3132.91 yuan. 61
kilograms more and 1701.09 yuan higher that those of the check group.