Three Necessary Elements in Fish Feed Formulation

In the design of freshwater fish feed formulation, the main considerations are protein, vitamins and minerals.

Protein:
Protein is generally the first consideration in the formulation of nutritional element, fish needs twice or three times amount of protein than livestock, because of the poor ability of using carbohydrate, fish needs to consume part of the protein as a source of energy. Feed price is mainly determined by the level of protein, so the design of feed formula often firstly consider the level of crude protein, but attentions need to pay is considering the balance of digestible protein (DP) and amino acids more important, in addition to considering the level of crude protein.


Vitamin:
Fish has short intestinal , the type and quantity of bacteria is rare, so the synthesis ability of some vitamins is poor, a lot of vitamin need provided by the feed. Such as vitamin C is don't need to add in livestock and poultry feed material, but in fish feed do need, it can improve the fish free immunity and anti stress ability.


Minerals:
Fish absorb most of the mineral elements from the water through gills and skin, especially calcium, fish will not appear calcium deficiency, even if the feed does not supply calcium. Fish has different absorption rate for various minerals, when adding minerals in the feed, we should choose the inorganic salt, organic salt or chelate salt, which with high absorption rate. It is necessary to add right amount of trace elements in the fish feed, because Fe deficiency can lead to anemia, Zn, Mn, Co will cause short trunk.


Nutrient requirements of fish is a complex process. When choosing comprehensive feed formula, we should starts from the existing raw materials, develop new protein source, fat, carbohydrate, which is suitable for freshwater fishes. On the basis of meeting the nutritional requirements, a comprehensive and relatively low cost of feed should be prepared, which can promote the development of freshwater aquaculture, to develop a good feed, it is necessary to have a comprehensive understanding of the nutritional composition of the feed.

  • Issue by:Fanway
  • Web:https://fishfeedmachinery.com/Solution/nutritional-fish-feed-formulation.html
  • State/province:Zhengzhou
  • Country/region:China
  • Zip:450000
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