The present invention discloses an environmentally protective puffed feed for
penaeus vannamei and a preparation method thereof. The environmentally protective puffed feed for the
penaeus vannamei isprepared by the following steps: feed raw materials are crushed, the crushed raw materials are mixed to prepare feed base materials, and then water adding, extruding and puffing, granulating and maturing are conducted to prepare a finished product, and the feed consist of the following raw materials in parts by weight: 65-80 parts of
protein source raw materials, 2-7 parts of fat source raw materials, 16-20 parts of
sugar source raw materials, 0.05-0.2 part of compound
vitamin, 0.5-2.0 parts of compound mineral salts and 0-0.2 part of an attractant. According to
nutrient requirement characteristics of
penaeus vannamei, the
animal protein source and
plant protein source with high digestibility are selected, and the feed overcomes a problem of an
amino acid imbalance of a single
protein source, is beneficial to reducing
ammonia nitrogen emissions and reduces environmental pollutions, and is simultaneously improved in a formula and conducive to puffing and breeding. A feed coefficient ofthe puffed feed is less than or equal to 1.1, most toxins and anti-nutritional factors are destroyed, the puffed feed is excellent in stability in water, a density of the puffed pellet feed is more than 1.4, a maturing degree is more than 80, and the feed is more comprehensive in nutrients, more palatable than ordinary pellet feeds, and higher in feed efficiency.