Try to use conventional feed raw materials and fine-tune the formula in appropriate seasons. In order to further improve the palatability of feed, attractants (incense, sweeteners and glucose, food residues from food factories, etc. ) can be added. Crude fiber can also stimulate gastrointestinal peristalsis and fecal excretion. Pigs are monogastric animals, and their ability to digest crude fiber is poor. When there is too much crude fiber in the feed, not only can crude fiber not be effectively digested and absorbed, but also the absorption of other nutrients will be affected.

Produce beneficial substances, keep the microecological balance of pig intestines, and enhance the digestion and absorption ability of intestines to feed nutrients, thus greatly improving the feed utilization rate, improving the conversion rate and further promoting the digestion ability of pigs. Produce a large number of high-quality pork and oil with less feed and labor. The factors affecting the growth of sacrificial pigs are pig breed, birth weight, age, feed type, preparation method and feeding management technology, which have great influence on fattening effect.

Adding some microecological agents or similar nutritional additives is really helpful to the growth of pigs, but the cost is high and the input and output are not proportional. What is grease? What is its function? Grease is the edible oil we eat. The main physiological function of oil is to store and supply heat energy, which can provide twice as much energy as sugar and protein in metabolism.

Improve palatability, increase feed intake of sows to promote growth, and add 3% oil in summer to relieve heat stress and increase feed intake, which will affect feed intake when sows are constipated. Adding grease can solve the problem. Because oil contains carbohydrates, it lubricates the intestines. Generally, it can be added after two weeks of pregnancy. Each sow increases the live weight of newborn piglets 10% ~ 12% and the survival number of suckling piglets 1.5 ~ 2.0 every year. If the dosage is increased to 15% 5 days before delivery, the effect will be more obvious.