For more production of fish some extra feed is needed in accordance with natural feeds in water.
This extra served feed is called supplementary fish feed. Introduction of some supplementary fish feed are described below.
Rice dust is like powder. It is very common and cheap. It is a better fish feed. Rice dust contain about 10-14% of protein. Rice dust also contain vitamin B1, B2, B6 and small quantity of enzyme.
Mustard cake can be found in small sized pieces. It is slightly yellow colored. Mustard cake has to served to fish by mixing with other food. Fat may gather in the liver of fish for long time consuming of cake.
As a result the fish may die. Mix maximum 40% of cake in the fish feed. But don’t use dry cake more than 20%. Mustard cake contain 30-32% protein. It also contain a high rate of fat.
Wheat chaff contain fiber. It controls many types of fish diseases. Amount of fat in wheat chaff is low.
So, it is better than rice dust as feed. Amount of protein in the wheat chaff is 10-15%.
Maize is yellow colored grainy feed. It is the best among the vegetate supplementary feed.
Generative fish gain maturity vary fast by feeding maize. Maize contain protein, carbohydrate, fat, vitamin A and E.
It contain about 54% protein. It is a better ingredients for supplementary fish feed.
There are various types of moss available. They are of green colored. They are floaty water plants. This types of moss contain about 14-20% protein.
Fish powder or fishmeal are brown colored. It is easily digestible to fish. Fishmeal contain about 55-60% protein.
The color of bone powder is dim white. It is very necessary for building fish-bone. The ratio of calcium and magnesium in the bone dust is 2 : 1.
The dry animal blood is coppery colored. It can be found in the slaughter house. Blood is used as fish feed by mixing with other feed. It is an ideal feed ingredients for catfish.
Liquid blood contain 63% and dry blood contain 82% protein. Two necessary amino acids are available in the blood of animal.
Innards of Animal
Innards of animal is a very suitable and ideal feed for catfish. It contain 52% protein.
Vitamin is a necessary ingredients of fish feed. It keeps the fish healthy and disease free.
Along with the above mentioned feed ingredients, the fish also need some more elements in their feed. Vitamin premix, salt etc also helpful for fish.
However, for better production of fish it is very necessary to provide supplementary feed along with natural feed of fish.