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- Title
Effect Analysis of Closed Cage on Breeding.
- Authors
LIU Ping; JIANG Tao; XU Zhong-wei; XU Ming-chang; CHEN Zhi-xin
- Abstract
In order to realize healthy culture and improve waterbody yield and quality by the largest extent, this paper studied and developeded a closed cage to running water type. The closed cage has window (hole) on the wall, which can be opened for changing water. The holes could be closed or opened by waterproof zippers. The closed cage was installed on cement floating body, and 2 pumps were used to provide circulating water thus improving flesh quality while removing fecal matter and unconsumed feed. This closed cage could prevent and control diseases. Waste material is recycled for compost. The closed cage was tested in street reservoir of Youxi County in Fujian Province in September 2011. The test was conducted by breeding tilapia for 100 d, and the water quality was tested regularly in 4 closed cages with different cultivation methods. Under the closed cultivation conditions, the oxygen levels was 6.158 mg/L, ammonia nitrogen and nitrate nitrogen contents were 0.291 mg/L and 0.011 mg/L on average. The results showed that the new closed cage could ensure the survival rate of aquatic products in the case of surface water pollution, recycle the waste, and realize pollution-free cage farming.
- Subjects
RECYCLING research; WATER pollution; CAGE aquaculture; NITROGEN in water; WATER quality management
- Publication
Journal of Agricultural Science & Technology (1008-0864), 2014, Vol 16, Issue 3, p90
- ISSN
1008-0864
- Publication type
Article
- DOI
10.13304/j.nykjdh.2013.547