A kind of domestication method of rapid current fish
A technology of fish and rapids, which is applied in the field of domestication of rapids fish, can solve the problems of high mortality rate of diseases and insect pests, stagnation of gonad development, strong stress response and other problems, and achieve the effects of risk control, overcoming gonad development and reducing harm
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Embodiment 1
[0022] The rapid current fishes to be domesticated in the present embodiment are: 2~3 ages of round-mouthed copperfish, which were collected from the temporary cages in rivers and rivers in 2011 to 3 years in 2013. There were 3 batches of 384 tails in total, which were respectively: 55 in 2011, 131 in 2012 and 198 in 2013; the weight range: 0.29~0.48kg.
[0023] Its specific domestication steps are:
[0024] 1) The breeding pond is set up outdoors with a diameter of 4m and 6m, and is equipped with a sunshade. There is a sewage pipe installed in the breeding pond. First, the breeding pond is cleaned, disinfected and watered, and then the 3~5-year-old generation of Dabry's sturgeon is introduced to control The water depth is 80~100cm;
[0025] 2) After Dabry's sturgeon adapts to the environment, raise copperfish of the same age separately, and maintain the biomass of a single pond at 5-10kg / m 2 , where the nesting ratio is 1:10~20 by weight of copperfish and Dabry's sturgeon, ...
Embodiment 2
[0028] The to-be-domesticated torrent fishes selected in this example are: 3 to 4-year-old wild albacore, which was collected from fishermen in the lower section of Xiangjiaba in the autumn of 2012, with a total of 92 tails, with an initial weight range of 0.1 ~0.3kg.
[0029] Its specific domestication steps are:
[0030] 1) The breeding pond is set up outdoors, with a diameter of 6m circular glass fiber reinforced plastic basin, and is equipped with a sunshade. There is a sewage pipe installed in the breeding pond. First, the breeding pond is cleaned and disinfected, and the water is cultivated. , control the water depth to 80~100cm;
[0031] 2) After the Dabry's sturgeon adapts to the environment, the long-finned goblins that have been temporarily raised are housed, and the biomass in a single pond is maintained at 5-10kg / m 2 , where the nesting ratio is 1:20-30 by weight and 1:2-3 by weight of albacore and dabrye's sturgeon; the water flow in the breeding pond is control...
Embodiment 3
[0034] The rapid-stream fishes to be domesticated in this embodiment are: 2-4 years old wild long thin loach, which was collected from fishermen in the lower section of the Xiangjiaba Dam in the spring and autumn of 2011, with a total of 215 tails. The initial weight range is: 0.2~0.8kg.
[0035] Its specific domestication steps are:
[0036] 1) The breeding pond is set up outdoors, with a diameter of 6m circular glass fiber reinforced plastic basin, and is equipped with a sunshade. There is a sewage pipe installed in the breeding pond. First, the breeding pond is cleaned and disinfected, and the water is cultivated, and then the 2~3-year-old generation of Dabry's sturgeon is introduced. , control the water depth to 80~100cm;
[0037] 2) After the Dabry's sturgeon adapts to the environment, the long thin loach that has been temporarily raised is set up, and the biomass in a single pond is maintained at 5~8kg / m 2 , where the nesting ratio is 1:8~10 by weight and 1:3~4 by weig...
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