Compound pig feed for reducing thickness of back fat by using appropriate energy nitrogen ratio of pig and preparation method thereof

Abstract

The invention discloses a compound pig feed for reducing the thickness of back fat by using an appropriate energy nitrogen ratio of a pig and a preparation method thereof. The compound pig feed comprises the following components: 20.6-60.7% of maize flour, 1.3-40.4% of wheat flour, 8-16% of 46% soybean meal, 4-12% of puffing soybean flour, 0.45-1.55% of HTL306 fatty powder, 0.05-0.25% of lysine, 0.003-0.005% of carnitine and the like. The preparation method comprises the following steps: selecting appropriate components as raw materials, mixing the energy nitrogen ratio of the feed to 1.98-2.25 as required, and determining the appropriate proportion of each raw material; crushing the maize flour into 1.0-1.2mm, crushing the wheat flour into 1.8-2.2mm, and mixing the soybean meal with the puffing soybean and crushing the soybean meal and the puffing soybean which are mixed into 1.0-1.2mm; and after fully mixing each raw material, quenching and tempering the raw materials through saturated steam, pelletizing the raw materials, and cooling and packaging the pelletized raw materials to obtain the compound pig feed. The compound pig feed disclosed by the invention conforms to the law of energy and proteinosis during the growth and the development of pig organisms at each stage, can thoroughly overcome the difficulties that the feed is wasted and especially the energy and protein raw materials are wasted because an inappropriate energy protein proportion causes the increased thickness of the back fat and insufficient proteinosis, and the problem of environmental pollution caused by breeding industry and especially exceeding nitrogen discharge is solved.

Description

Technical field [0001] The invention specifically relates to a pig compound feed for reducing the thickness of backfat by using a suitable energy-nitrogen ratio for pigs and a preparation method thereof, in particular to a feed for pigs at the stage of 75-100 kg. Background technique [0002] my country is a big pig farming country and the largest pork consumption country in the world. In recent years, with the continuous improvement of people's consumption level and the preference for lean meat consumption habits, the economic benefits of the pig breeding industry chain have been affected. The thickness of backfat is directly related to the percentage of lean pork meat. At the same time, it is also one of the important indicators for measuring the body fat content of pork carcass. Therefore, when a food factory buys pork, it usually slaughters each batch of pigs, ranks the pork according to the meat yield and backfat thickness of each pig, and then, according to the proportion ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a pig compound feed that utilizes pigs’ suitable energy-nitrogen ratio to reduce backfat thickness in view of the problem that the backfat thickness of pigs sold in farms is too high, which restricts pork grade evaluation and directly affects the economic benefits of farms. and its preparation method

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