The rainbow trout is a hybrid variation of Nile tilapia, commonly known as red Nile tilapia and red non-grub, with the characteristics of fast growth, strong disease resistance, low feed requirement, delicious meat taste, bright body color, etc. , Welcomed by the market, has great promotion value. However, the current market requirements for listed fish specifications generally have to be over 600g tail weight, while the average farmers in the Yangtze River Valley have to raise this specification must be after August, aquaculture time of 100-120 days, and formed a centralized listing after August , Impact on the market, affecting the economic benefits of breeding, barriers to further promote the breeding of rainbow lice. How to make the rainbow eel individual in a short time (breeding time only about 70 days, before the end of July) to reach the standard of the dead market, fill the shortage of the market, improve the breeding efficiency is the urgent need for the majority of farmers to solve the problem. This article recommends a quick-developing technology for everyone's reference.
First, the choice of pond:
The rainbow trout aquaculture pond area of ​​3 - 5 mu is appropriate, the area is too small water quality should not be controlled, easy to cause floating head lack of oxygen or flooding pond, and the area is too large to be fed management and should not be timely fishing listing, pond water depth must be able to reach 1.5m Above, the pool floor requires no leakage, the bottom of the pool is flat, and the bottom mud is not more than 10cm. The rainbow trout has a muddy habit. Once it is frightened, it will immediately sink in the sediment pool. The bottom of the pond will be uneven and the depth of sediment will directly affect the fishing market.
Second, preparation before stocking:
One week before stocking, drain the pool water, level the bottom of the pool, remove debris and excess sludge, clean thoroughly with 10-15kg of bleach per acre, sterilize, remove the wild, and incubate for 1-2 days after exposure. When entering the water inlet filter should be installed to prevent the entrance of wild fish, the initial depth of water control in the 80 - 90cm, is conducive to the rapid increase in water temperature, fish ponds and then gradually deepened. Appropriate application of organic fertilizer after the water culture water quality, each pool can be released 1-2 tractor dung. Each pool must be equipped with a 3KW aerator.
Third, the stocking of fingerlings:
The stocking time of fish species is generally at the beginning of May, and the water temperature is stable above 18°C. Selecting a stock for breeding on a sunny day is conducive to raising the survival rate of the species.
1. Selection: The growth rate of females and males of rainbow trout is different in the growing process. The male rainbow trout grows at a relatively faster rate. If females and males are raised together, they will breed a large number of generations, which will affect the growth rate. Will increase production costs. Therefore, when selecting rainbow trout seed, it is necessary to select and pick male rainbow trout for breeding, which will help increase the growth rate and shorten the breeding time.
2, stocking specifications: stocking specifications should be controlled in the tail weight 50 --- 100g, stocking size is too small affect the time to market, stocking specifications are too large, will increase the cost of seed, affecting the economic benefits of farming.
First, the choice of pond:
The rainbow trout aquaculture pond area of ​​3 - 5 mu is appropriate, the area is too small water quality should not be controlled, easy to cause floating head lack of oxygen or flooding pond, and the area is too large to be fed management and should not be timely fishing listing, pond water depth must be able to reach 1.5m Above, the pool floor requires no leakage, the bottom of the pool is flat, and the bottom mud is not more than 10cm. The rainbow trout has a muddy habit. Once it is frightened, it will immediately sink in the sediment pool. The bottom of the pond will be uneven and the depth of sediment will directly affect the fishing market.
Second, preparation before stocking:
One week before stocking, drain the pool water, level the bottom of the pool, remove debris and excess sludge, clean thoroughly with 10-15kg of bleach per acre, sterilize, remove the wild, and incubate for 1-2 days after exposure. When entering the water inlet filter should be installed to prevent the entrance of wild fish, the initial depth of water control in the 80 - 90cm, is conducive to the rapid increase in water temperature, fish ponds and then gradually deepened. Appropriate application of organic fertilizer after the water culture water quality, each pool can be released 1-2 tractor dung. Each pool must be equipped with a 3KW aerator.
Third, the stocking of fingerlings:
The stocking time of fish species is generally at the beginning of May, and the water temperature is stable above 18°C. Selecting a stock for breeding on a sunny day is conducive to raising the survival rate of the species.
1. Selection: The growth rate of females and males of rainbow trout is different in the growing process. The male rainbow trout grows at a relatively faster rate. If females and males are raised together, they will breed a large number of generations, which will affect the growth rate. Will increase production costs. Therefore, when selecting rainbow trout seed, it is necessary to select and pick male rainbow trout for breeding, which will help increase the growth rate and shorten the breeding time.
2, stocking specifications: stocking specifications should be controlled in the tail weight 50 --- 100g, stocking size is too small affect the time to market, stocking specifications are too large, will increase the cost of seed, affecting the economic benefits of farming.
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