Feeding methods for salmon and trout farming

Abstract

The invention discloses a salmon trout cultivating and feeding method, and belongs to the technical field of aquaculture. The technical point of the invention is that the salmon trout cultivation is performed in two sets of sealed recirculating aquaculture systems, and every set comprises 24 culture ponds, and water for cultivation is well water; the cultivation index is that the temperature of water for cultivation is 15-17 DEG C, the dissolving oxygen is 7-8 / mg / L, and water quality indexes of ammonia nitrogen, nitrate, and nitrite are the same condition; the food feeding parameters: the daily feeding amount includes four groups which are 0.7%, 1%, 1.5% and 1.8% of fish weight; the daily feeding frequency is 4 times, and the feeding time is set at 6: 00, 12: 00, 18: 00 and 24: 00; the overall growth condition of the fish is tested once monthly; the survival rate and fatness of fish are calculated; water quality is monitored at fixed time and regular period; the detection position is awater returning pond. The invention is used for salmon trout cultivation.

Description

technical field [0001] The invention relates to a fish breeding and feeding method, in particular to a salmon and trout breeding and feeding method, belonging to the technical field of aquaculture. Background technique [0002] With the development of the economy and the improvement of residents' living standards, people's choice of edible fish is not only pursuing taste, but also pursuing nutrition and safety. Salmon trout not only meets people's pursuit, but also has delicious and tender meat, which is the main raw material for sashimi , the domestic consumer demand is increasingly strong, and the output is far from meeting the domestic consumer demand. The growth rate of demand is increasing every year, and the country still needs to import to make up for it. Therefore, it is necessary to develop the salmon and trout farming industry in Italy to meet the domestic supply. The key to the development of salmon and trout farming is the breed, farming technology and feed feed...

AI Technical Summary

Problems solved by technology

The main problem of open running water aquaculture is the huge consumption of water resources. The daily water exchange volume is three to five times that of the aquaculture pond, and the water quality is not easy to control. Therefore, the development of salmon and trout aquaculture must be at the expense of water resources.

Images