Analysis on the Scientific use of Pig compound Feed

Pig formula feed is to reasonably match and process all kinds of feed into nutritious feed according to the nutritional requirements of pigs. The key of formula feed is feed formula, and the core part of formula feed is concentrated feed, which is also called protein supplementary feed. It is a semi-finished compound feed made of protein feed (fish meal, bean cake, etc.), mineral feed (bone meal, stone powder, etc.) and additive premix. Then mixed with a certain proportion of energy feed (corn, wheat bran, etc.) will become a full-price feed to meet the nutritional needs of animals, with high protein content (generally between 30% and 50%), comprehensive nutrients, easy to use and so on.

1. The superiority of formula feed

1.1 High economic benefits

Because the compound feed is prepared according to the needs of various nutrients in different stages of pig growth, the nutrition is comprehensive and the proportion is appropriate, which can give full play to the pig production capacity and improve the feed utilization rate, which is beneficial to the growth and production of pigs, shorten the feeding cycle, reduce the feeding cost and improve the economic benefit.

1.2 make full and rational use of various feed resources

Corn, wheat, cottonseed cake, rapeseed cake, sesame cake, bean cake and other kinds of meal and blood meal, meat and bone meal, feather meal, as well as silkworm pupa, earthworm, snail and feed yeast are all important protein feed resources. animal bones, eggshells, shells, calcium phosphate, calcium carbonate, calcium hydrogen phosphate, calcium superphosphate and so on all contain phosphorus and calcium superphosphate Chemical products such as ferrous sulfate, copper sulfate, zinc sulfate, zinc oxide, manganese sulfate, manganese oxide, cobalt sulfate, cobalt chloride and sodium selenite all contain major elements and trace elements needed by animals; various vitamins, amino acids, antimicrobials, insect repellents, flavors, colorants and other feed resources can be used as additives in compound feed production.

1.3 it is beneficial to the popularization of scientific feeding technology.

According to the physiological characteristics and production performance of different live pigs, the feed formula was continuously improved to improve the feed feeding level, so that the scientific feeding technology was popularized to the majority of users with the promotion of formula feed, and the scientific feeding level was gradually improved.

1.4 reduce labor intensity and improve labor productivity

With the rapid development of feed industry, formula feed is mainly composed of concentrated feed (protein supplementary feed) and energy feed (corn, wheat, etc.), while concentrated feed can be produced centrally to save a lot of equipment expenditure and labor of breeding units. And the necessary energy feed corn, wheat and other crops are relatively rich in rural areas, reasonable development of a large number of raw feed corn, wheat and so on in rural areas, turning resource advantages into economic advantages. At the same time, the use of formula feed is beneficial to mechanized production, improve labor productivity and reduce cost. In addition, the compound feed is easy to use and can be used according to the instructions, thus reducing the labor intensity. | 2. Preparation principle of formula feed.

The formula of compound feed is the technical core of feed use, which is formulated by experts according to a certain procedure. Strict animal feeding experiments must be carried out to test the final effect of the new formula and process. The following principles should be considered in designing the formula:

2.1 meet the nutritional needs of live pigs based on feeding standards

The feeding standard, also known as nutritional requirement, is to scientifically stipulate the amount of energy and various nutrients that a live pig should give every day according to the different types, sex, age, body weight, physiological status, production purpose and level of live pigs. At present, the feeding standard of live pigs has been determined in our country, and the feed composition and nutritional value table can be found according to the feeding standards of different types of pigs and the specific local conditions at that time. If the nutrition index specified in the feeding standard can not be achieved, it must also meet the needs of major nutrients such as energy, protein, calcium, phosphorus, salt and so on. Three restricted amino acids (methionine, lysine and tryptophan) should be satisfied as far as possible. Especially because the energy feed accounts for the largest proportion in the formula feed, so when preparing the feed, we should first meet the feed energy requirements.

2.2 pay attention to the integrity and balance of nutrition

It is necessary to consider not only whether the nutritional content of energy, protein, minerals and vitamins meet the feeding standards, but also depends on the quality of nutrients. It is necessary to diversify raw materials as far as possible and learn from each other in order to achieve nutritional balance.

2.3 pay attention to the ratio of energy to protein and the ratio of calcium to phosphorus in the feed formula

Due to the different production performance and physiological state of pigs, the requirements for the ratio of energy to protein and the ratio of calcium to phosphorus in feed are also different. For example, Ren Li sows have higher requirements for protein specific gravity and adult pigs have higher requirements for energy specific gravity.

2.4 pay attention to the volume of the diet