trout
Rainbow trout (Salmonidae) is a type of fish from the free-living fish family.
This fish belongs to the order of trout and Oncorhynchus genus.
In terms of appearance, it has an extended body and developed fins,which are 8 in number and include two pectoral fins, two ventral fins, one anterior fin and two dorsal fins.
one pubic fin and two dorsal fins. One of the dorsal fins is located above the body and in the middle and has a radius.
The other dorsal fin is small and without radius and is located on the tail stem, which is known as the fat fin, which is the main characteristic of the free kidney of fishes. Rainbow trout has a large mouth that opens wide when catching prey due to the free jaw bone and hunts large prey. The main color of the head and body of the fish is bright yellow, and many dark spots can be seen above the lateral line. Its body color changes in different rivers and becomes very dark in the rivers that are located in the shade. The length of this fish reaches 40 cm and its weight reaches 1.3 kg.
Feeding farmed Trout
Since fish feed accounts for about 50 to 70 percent of the cost of production, it is very important to use the right food that contains the required components of trout to achieve the goal of its economic production.it is very important to use suitable food that contains the necessary components of this fish.
The diet that we consider for trout (ready meal) should be included: Protein, fat, carbohydrates and minerals and vitamins which have the properties appropriate to the needs of this fish in terms of their types and quantity of constituents.
Considering that after the quality and physical and chemical properties of water, food is one of the most important success factors in salmon breeding, we can understand the importance and role of food and its
After the quality, physical and chemical properties of water, food is one of the most important factors in the success of Trout farming. in case of using suitable food or ration, in addition to meet their physical needs, it will improve the general condition and health of the fish, reduce losses during the breeding period, accelerate their growth, produce fish with a higher average weight. The total amount of production will be higher in each pool or at the level of the whole farm.