Fish Feed Machine Knowleagde

1：Rapeseed meal is a kind of vegetable protein with high nutritional value, low price, and easy to obtain. The appropriate amount of rapeseed meal added to tilapia feed is 20%-30%. Excessive addition will produce Toxic and side effects, it is best to enter the formula at a ratio of 1:1 with cotton meal, so that the balance of amino acids is better

2:Soybean meal is a relatively high-quality plant protein source and the most expensive plant protein raw material. Therefore, rapeseed meal and cotton meal can be used in a larger amount in tilapia feed in formula preparation. Therefore, the use of soybean meal in feed is mainly affected by the cost of the formulation. The restriction is in the position of controlling the use

3：Fish meal is an ideal source of animal protein. It is not only high in protein content, but also rich in essential fatty acids, minerals, vitamins and other nutrients necessary for the growth and reproduction of aquatic animals. It also has low carbohydrate content, good palatability, and anti-nutritional factors. Less, can be well absorbed and utilized by aquatic animals

4：However, due to the cost of fish meal, the formula cost is within an acceptable range to maximize the use of fish meal. However, due to the high price of fish meal, the amount of addition in the tilapia feed formula is limited. At this time, there is a problem. Emergence of plant protein sources

5：The role of anti-nutritional factors in fish feed is mainly manifested in the following aspects: reducing the digestibility of nutrients, toxic effects, and affecting palatability. For example, the trypsin inhibitor in legumes combines with trypsin in the small intestine of fish to form an active complex, which leads to a decline in the digestion, absorption and utilization of protein in the intestine, and affects the absorption and digestion of fish.

6：Feeding of grass carp feed: mainly feed pellets with a protein content of 28-32%, supplemented with green feed. Feeding follows the principles of "being rough before and then fine" and "four determinations and four observations". Generally, it is fed twice a day, and it is advisable to finish eating within 2 hours and the grass carp eats 80% full. After feeding pellets continuously for a period of time, feed pellets should be stopped for 1 week, and feed the raw grain feed during the interval. At ordinary times, attention should be paid to adding vitamins and other drugs to the feed in an appropriate amount to prevent grass carp from suffering from diseases such as liver and gallbladder syndrome and causing a large number of deaths.