The microscopic fineness of pigs

Micro fine is the haggling when the price, is the work of meticulous, is never let go of any detail, is not allowed to neglect any place. Every job has details that are easy to be ignored. Pay attention to them and guard against them, and our career is bound to succeed.

The details of the @ # @ 227 steps @ process are listed below:

(1) Feed

The cost of feed accounts for more than 70% of the cost of raising pigs, and there are many places where feed is neglected. Put aside the bargaining in terms of management, and list it from a technical point of view.

1. Quality of raw materials

(1) if the corn contains 14% water and 20% water, the processed feed can not be the same, can the formula be adjusted accordingly.

(2) Fish meal has the largest nutritional variation in feed, and the phenomenon of inferior quality is not uncommon.

(3) moldy corn should not be used in a large amount of feed after moldy corn is moldy, but some people wash moldy corn with water and dry it for sale. can you find out whether it is good or bad?

(4) impurities in corn when purchasing corn, you will remove the impurities in corn proportionally, but do you also take impurities into account in formula feed?

(5) part of the nutrients in the premix and concentrate are constantly losing over time. When we use the materials which are close to the expiration period, whether we take into account the lack of these ingredients to supplement.

(6) at present, people have to use iodized salt. In the same area, is there a shortage of pigs as well as people?. How many feed factories use iodized salt for pigs?

(7) there are relevant standards for the use of stone powder as feed, and now it is rare to see that stone powder packaging has a clear factory address, contact information and composition content.

(8) the protein content of soybean meal varies greatly, coupled with some artificial adulteration, the change is even greater, and how many companies conduct laboratory analysis on each purchase?

2. Feed matching

Feed matching is to achieve a balanced supply of nutrients as far as possible, at least the balance of major components. Pigs need effective nutrition, not the accumulation of nutrients, taking into account the various factors affecting the utilization of major nutrients in order to achieve a real balance.

(1) the ratio of energy to protein is more precisely the ratio of digestible energy to digestible protein. Digestible energy can be found in books, but the digestibility of protein is affected by many factors and is not a constant data. One of the common mistakes is to treat crude proteins as digestible proteins, and the second is to simply accumulate digestible proteins as described in the data. The most reasonable proportion needs to be confirmed in practice.

(2) in the ratio of calcium to phosphorus in general feed, the ratio of calcium to phosphorus is more than 1: 1.5, but in fact, they should not be constant, especially phytate phosphorus in feed is not easy to be used, and its content will directly affect the use value of phosphorus. The proportion of inorganic phosphorus in feed and the addition of phytase have great influence on the ratio of calcium to phosphorus.

(3) among the amino acids, the proportion of lysine, methionine and threonine in growing pigs, lysine is the first limiting amino acid, people will simply add lysine to a very high level, it is considered to be a high quality feed. In fact, if the restricted amino acid reaches a certain amount, it is no longer a restricted amino acid, and when lysine is satisfied, threonine or methionine may become the first limiting amino acid. Under normal circumstances, the ratio of lysine to methionine to threonine is 1: 0.6 / 0.65. Don't forget the other two when adding lysine.

(4) Feed formula should be combined with climate (temperature). The change of ambient temperature will cause changes in the needs of pigs for different nutrients, such as feeding high-energy feed in high-temperature season or low-energy feed in cold season. It will cause partial nutrition deficiency and partial excess nutrition. When the temperature was less than 20 ℃, the piglets were fed with high protein diet (higher than 18%). As a result, the piglets grew slowly and were prone to disease.

(5) the feed mix should change with the raw material composition, the pig nutrition needs is to adjust the lever, the raw material has changed, the feed formula should also be changed, using corn with 30% water content instead of 14% corn can only cause serious energy shortage.

3. Feed processing

Feed processing has a great impact on feed, different feeding stages have different requirements for crushing particle size, too fine feed for adult pigs is easy to cause gastric ulcer, too coarse feed for piglets is not easy to digest.

The uneven mixing of feed is obvious in many pig farms, such as vertical mixer for 12 minutes and horizontal mixer for 6-8 minutes. The consequence of uneven mixing is that some or even all of them can not reach the full price, which will greatly reduce the utilization effect of feed.