Development of production extruded feed for tilapia industrial production

Abstract

As a result of the analysis of domestic experience over the past 10 years and foreign experience (on the example of 9 countries: Vietnam, India, Spain, Canada, China, Norway, the USA, Chile, Japan, which possess the most advanced technologies and equipment for the production of highly effective feed for fish ) in the development of innovative technologies and equipment for the production of highly effective feed for fish, it was found out that the methods of both dry and wet pressing are outdated and do not meet modern requirements for the production of feed for fish, as they do not allow to carry out deep physicochemical transformations in the protein-carbohydrate complex and to introduce fat components at 40% level. Modern fish technologies are based on the use of extrusion processing of a multicomponent mixture to impart different buoyancy and adjustable immersion speed of the resulting feed. Extrusion technology will allow to introduce a large amount of fat into the product - up to 35–40%, to achieve 100% starch cleavage level. Extruded product has high water resistance, keeps its shape. New generation developed compound feed formulations for tilapia with 60% protein content, 40% fat, with the introduction of growth stimulants, dietary supplements, etc., will increase the digestibility of compound feed by fish by 10-12%, increase of fish weight by 10-12%, reduce the cost of commercial fish farming by 10–15%, reduce feed conversion by 15%. The proposed technology will allow to create new generation compound feeds formulations for various fish species with a high content of protein-fat complex, which will increase the weight gain of fish by 12-17%, reduce the cost of final fish production by reducing the cost of feed by 10-15%. .

Sublimation Drying of Fish Products in the Arctic in the Production of Feed for Farm Animals

“…Cut A-A (Fig. 3): 1 -microwave camera body; 3 -waveguides; 4 -microwave generator; 5 -vacuum outlets; 8 -racks Измельченная сублимированная рыбная мука для приготовления кормов животным в крафт-мешках, заполненных инертным газом, может быть доставлена в любой регион России и длительное время храниться при плюсовых температурах [18][19][20].…”

Study of quality indicators of mixed fodder when using byproducts of the fat-and-oil industry

“…The most rational way to use soapstock is to introduce it into the meal at the enterprises of the oiland-fat industry and use this meal in the production of mixed fodder [1,5,7,[10][11][12].…”

Development of productive pseudocapsulated compound feeds for rainbow trout grown in the Central Federal District of the Russian Federation

“…Therefore, fish producers refuse long-standing partners who produce mixed fodder for fish in pelleted form. They are forced to buy mixed fodder, where the methods of extrusion and pseudocapsulation are used [1,7].…”

“…The known disadvantages of classical technology are taken into account in the advanced technology for the production of pseudo-capsuled feeds of a given feed value, allowing to increase technological capabilities, to expand the range of produced feeds of improved quality, t. e. Production of a finished product enriched with fats and vitamins, adapted for different species of salmon fish. Also, due to the fact that the pseudocapsulated mixed fodder is less in contact with moisture and oxygen in the air, it does not oxidize and decompose longer, which increases the storability of pseudocapsulated fodder [1,3,8,[11][12][13][14][15][16][17].…”