In autumn and winter, it is often heard that pig farmers report that the quality of premixed or concentrated materials is not good, and pigs do not eat long. According to my understanding, the reason for the slow growth of pigs is not caused by the quality of the premix or concentrate, but by the excessive moisture of the corn at that time. Because of the low temperature in autumn and winter, the energy demand of pigs is greater than that in spring and summer. At this time, most of the corn is newly harvested corn, and the water content is more than 20%. If the formula is not modified and is carried out according to the fixed feeding procedure, there will be insufficient energy, which will affect the normal growth of the pig. The solution to this problem is very simple. One is to increase the proportion of corn while increasing the amount of feed while the other raw materials are unchanged. The second is to use wet corn with high-energy feed such as grease. It is suitable for piglets or piglets that require a large energy concentration.
In addition to the possible waste of feed from corn-fed pigs, there are the following points that can lead to common omissions of waste that require attention.
First, the feed formula does not change with the seasons of waste
Pigs have different nutritional needs throughout the year, but now, regardless of the recipe recommended by the feed mill, or the formula designed by experts, it is impossible to apply it all year round. High-protein formulas in winter can cause protein waste, and high-energy formulas in summer can cause energy waste. If we can adjust the formula in time to reduce the whole batch of meat to 3.5 from 3.4, for a million farms, we can save 10,000 × 90 × 0.1 = 90,000 kg a year, equivalent to more than 120,000 yuan. .
Second, not to waste according to the formula processing feed
There are several situations. First, when processing raw materials, it is not mentioned; second, when a raw material is lacking, it is easy to replace it with other raw materials; third, the raw materials are shodded, such as using wet corn instead of dry corn. The above three conditions will destroy the rationality of the feed formula and affect the feed utilization rate.
Third, the uneven mixing of waste
Uneven mixing has occurred in many farms. It is not necessary to say that the manual mixing is often caused by uneven mixing of the machine mix. There are some of the materials that are discharged while smashing. The most easily overlooked is the addition of drugs or trace additives to the feed. It is not directly mixed into the mixer through premixing. It is difficult to achieve even mixing by adding dozens of grams of medicine to the kilogram of feed.
Fourth, the waste of pigs eating piglets
It is often the case that piglets eat suckling pigs, pigs eat piglets, and pigs eat pigs, which will cause waste of feed. What is more serious is that the reserve pigs eat fattening pigs, which greatly delays the estrus time of the sows and affects normal breeding. These may not seem important, but if you calculate your account carefully, you will be shocked.
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