CATDOLL : CATDOLL: Is extruded fish feed effective?

1. Is the extruded fish feed effective?

Extruded feed is easy to digest and absorb. Good.

2. What is puffed fish feed?

After the feed raw materials are puffed, the flavor increases, the palatability improves, and the appetite of animals is stimulated. At the same time, the degree to which the long-chain structure of organic matter such as protein and fat is changed to short-chain structure increases, making it easier to digest.

Since protein is combined with starch matrix, it is not easy to lose during feeding. Protein is released only when digestive enzymes in animals decompose starch, which increases the potency of protein. The puffing process also denatures protein, inactivates many anti-nutritional factors, changes the tertiary structure of protein, and shortens the hydrolysis time of protein in the intestine. For ruminants, puffing generates rumen non-degradable protein, i.e., rumen-passing protein, which can avoid ammonia poisoning in animals and improve protein utilization. Secondly, puffing releases encapsulated fats in raw material molecules, increasing the caloric value of fats. Puffing can also form complex products such as lipoprotein or lipopolysaccharide with fat and starch or protein, reducing the content of free fatty acids. At the same time, lipase is inactivated, the degradation of fat is inhibited, and the rancidity of fat components during product storage and transportation is reduced.

The most basic function of feed puffing is to reduce the content of bacteria, mold and fungi in the raw materials, improve the sanitary quality of the feed, and provide sterilized and mature feed for animals. This reduces the risk of disease in animals and reduces the amount of various drug ingredients added. It also improves the gelatinization degree of starch and generates modified starch, which has strong water absorption and bonding functions. Due to its high water absorption, more liquid ingredients (such as oil, molasses, etc.) can be added to the product. At the same time, because it has a much stronger bonding function than ordinary starch, the amount of starch added during the puffing production process can be greatly reduced. This provides more options for the selection of other raw materials. More cheap raw materials can be selected in the formula to replace those expensive raw materials, which can greatly increase the potency of low-quality raw materials and reduce costs without affecting product quality.

3. Is it okay to feed fish with extruded feed?

Extruded fish feed is an extruded porous feed obtained by a sudden reduction of pressure after being subjected to high temperature and high pressure in a feed extruder.

The common fish pellet feed on the market is generally a pellet feed extruded by the die roller of a pellet machine, usually in a cylindrical shape. Both extruded feed and pellet feed can be used as fish feed. Extruded feed has better effect due to its good palatability and high digestibility, but it is much more expensive. General freshwater fish can use pellet feed, and special high-grade fish use extruded feed.

4. Can anyone tell me the formula of puffed pellet feed for ornamental fish? My email is [email protected]. Thank you very much.

If you feed it yourself, there is no need to make finished feed. My family also has a farm, and we all use feed powder (wheat flour). Just blanch it with boiling water, and then throw it in in a ball. This is how most tropical fish are fed. Few people feed them granules. The best tropical fish use eel meal, which you can get directly from aquatic feed wholesalers. It is very expensive to buy from aquarium fish.

5. What does the degree of puffing of puffed granular fish feed depend on?

The higher the starch content of the raw material, the higher the expansion coefficient. The higher the fat content, the lower the expansion coefficient. It is also related to the working pressure of the extruder. The higher the pressure, the higher the expansion degree. The lower the pressure, the smaller the expansion degree. In other words, the higher the mechanical energy of the extruder, the greater the expansion coefficient.

6. What is extruded feed?

The elliptical fir tree calls the flute to buy the 競競競腳 tip to restore the cricket what the 嫶競競腳 is the rare