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

Voronezh State University of Engineering Technologies, 19, Revoljucii Avenue, Voronezh, 394036, Russian Federation

^* Corresponding author: fln-84@mail.ru

Abstract

At the same time, rapeseed meal has an increased nutritional value and is almost completely devoid of the shortcomings that are characteristic of rapeseed cake. However, a small amount of fat limits their use in feed for valuable fish breeds. During the manufacture of fat-and-oil products, fat waste and other products that have a certain feed value are formed. In particular, we are talking about fat processing - soapstock. The feed value of this product has been confirmed by numerous studies and large-scale feeding experiments conducted by the parent institutes of the Ministry of Agriculture and specialized organizations. The article presents studies of the possibility of introducing rapeseed meal enriched with soapstocks into feed for valuable breeds of fish, and also presents the dynamics of quality indicators of the starting production feed for sturgeon fish during storage in warehouse conditions. During the production of mixed fodder, the preparation and supply to the experimental department of the studied products were carried out through the line of cakes. Grinding of granules was carried out on a crusher with a sieve with holes with a diameter of 6 millimeters, a sheet thickness of 4 millimeters. The shredded meal was sent to the silage of the raw material warehouse and then to the naddozer bunker. The supply of loose enriched meal to the production building was similar. Analysis of the data obtained indicates that the introduction of rapeseed meal enriched with soapstock lipids into the feed does not change the quality and does not reduce its shelf life.