But the breeding of rainbow trout is more demanding, so the rainbow trout breeding temperature to maintain how many degrees appropriate? In recent years, rainbow trout is very popular in the market, and there is also a good scale of farming in China.
But the breeding of rainbow trout is more demanding, so the rainbow trout breeding temperature to keep how many degrees appropriate?
1, temperature
Rainbow trout belongs to the cold water fish, its four seasons water temperature is best at about 12 ℃ -18 ℃, the best pool water temperature of 16 ℃ -18 ℃, the highest water temperature in summer can not exceed 24 ℃.
Below 8℃ or more than 20℃, the growth rate of rainbow trout will be significantly reduced; if more than 25℃, rainbow trout will not eat and drink, resulting in death.
2, density
The breeding density of rainbow trout and the amount of water injection has a certain relationship, in general, each square meter of the pond injected with 0.4L of water per second, in the case of a water temperature of 15 ℃, can be stocked with 15kg of fish species.
3, dissolved oxygen
Dissolved oxygen has a great impact on the growth and development of rainbow trout, if the dissolved oxygen is too low, the rainbow trout appetite deteriorates, it is difficult to digest after eating, and the growth rate decreases.
The right amount of dissolved oxygen can ensure the normal growth of rainbow trout, maintain a good growth rate, and improve the utilization rate of feed.
4, water quality
Rainbow trout farming requires clean and pollution-free water, and there should be no sediment.
Generally require a larger water flow, water flow, rainbow trout production is also high.
5, daily management
The bait for rainbow trout must be fresh, and the adult trout are fed twice a day, at 9 a.m. and 3 p.m. respectively.
After feeding rainbow trout for a period of time, there will be differences in the size of individuals, and farmers should screen them regularly to keep the size of each pool basically the same.
When there is a lack of oxygen in the fish ponds, oxygen boosting facilities should be provided to increase oxygen.
Farmers should conduct daily pond inspections and take immediate measures to prevent and control sick fish in the ponds once they are found.
Rainbow trout have high requirements for temperature, density, oxygenation, water quality, etc., and farmers must pay attention to avoid unnecessary losses due to improper management.