Crab compound feed and production method thereof

Abstract

The invention discloses a crab-breeding formula feed and a production method, aiming to provide a whole-nutrition formula feed for river crabs in the later stage of breeding, and a production method thereof. The crab-breeding formula feed has the following components based on weight proportions: 2-10 portions of imported fish meal, 2-10 portions of deep-sea fish meal, 6-10 portions of imported meat and bone meal, 2-8 portions of expanded soybeans, 10-25 portions of soybean meal, 10-18 portions of peanut meal (or peanut bran), 5-15 portions of rapeseed meal, 18-26 portions of high-gluten flour, 8-18 portions of rice bran, 1-2 portions of soy lecithin oil, 0.5-1.5 portions of imported fish oil, 1-2 portions of calcium dihydrogen phosphate, as well as 1-3 portions of additive premix; the additive premix comprises compound vitamin and complex mineral. The production process of the crab-breeding formula feed sequentially comprises the following steps: removing impurity, rough grinding, ultra-fine grinding, adding additives, adding oil, adding water and mixing, screening, quenching and tempering, granulating, ageing, drying, cooling, screening, testing, packaging and warehousing.

Description

technical field [0001] The invention relates to feed for aquaculture, in particular to a compound feed for fattening river crabs and improving quality and a production method thereof. Background technique [0002] my country has more than 20 years of history in research on the need for nutrition for the growth of river crabs. However, because river crabs grow relatively slowly and like to be quiet and aggressive, it is not suitable for high breeding density. Therefore, less feed is used in river crab culture (average 1 ton of feed is used for 10-20 mu), and most of them are fed with chilled miscellaneous fish and grain. In recent years, with the decline of catches of wild trash fish and the rise of prices, some river crab farmers have begun to gradually replace chilled trash fish and grain with artificial full-price compound feeds for river crabs, and even use artificial full-price compound feeds in the whole process of breeding. . However, with the increase in the proport...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of insufficient plumpness and poor quality in the later stage of river crab cultiva