(1) Clinker feeding method
The so-called clinker feeding is to feed the pigs with water after cooking, usually called clinker feeding method. This kind of feeding method is still very common in the vast rural areas. Its main advantage is that after the feed is cooked, the crude fiber can be softened, the feed volume can be reduced, the digestibility of the roughage can be increased to a certain extent, the feed intake of the pig is increased, and the bacteria and parasite eggs are killed. . However, this feeding method is unscientific. why? Because in addition to a very small amount of feed, the vast majority of feed after cooking, the nutritional value is reduced. For example, corn, barley, bran, rice bran and other feeds, after cooking, the nutritional value is generally reduced by about 10%, especially many vitamins will be destroyed. After the green feed is cooked, if it is not handled properly, it will cause feed poisoning (ie nitrite poisoning). Feed cooking also requires burning grass or fuel, affecting the source of roughage, and is not conducive to the development of pigs. Feed cooking also requires cooking equipment, pots, furnaces and other equipment, which will increase the cost of raising pigs. In addition, since the feed tends to deteriorate after being cooked, it needs to be fed with the cooking, labor and labor, and low work efficiency.
(two) raw material wet feeding method
At present, many pig farmers in rural areas have adopted the raw material wet feeding method. This method is simpler and more scientific than the clinker feeding method. Before feeding, just mix the crushed concentrate, coarse material and other feeds according to the specified ratio and total requirements, plus chopped and slushed green fodder and water (generally the ratio of material to water is 1). : 0.8 to 1, mastered in the hand squeeze mixture can drip water is appropriate, and the raw mix evenly, you can feed the pig. Liang Zhaolong, a professional pig farmer in Lianglin Village, Laohu Town, Dongping County, used this feeding method. He introduced to the author: “The cooking is changed to raw feeding, and the effect is very good. It not only saves fuel, saves labor, saves equipment, but also Reduce the cost of raising pigs."
(3) Raw material dry feeding method
The raw material wet feeding method is much better than the clinker feeding method, but the raw material wet feeding method also has some disadvantages, mainly because the feed is not suitable for storage, and it is still necessary to prepare and feed. It is easy to freeze in the cold winter, and it is still difficult to adopt a large pig farm (field) with a certain scale, and it cannot further improve labor efficiency. Therefore, in the current rapid development of the pig industry, some large pig farmers (fields) have adopted dry feed dry feeding methods on the basis of raw material wet feeding. Because raw dry feed is easier and more scientific than feeding raw pigs. Mix the crushed fine and coarse materials in proportion and put them into the automatic trough to allow the pigs to eat freely. They can be fed once a day, and a sink is provided for free drinking. Therefore, using this method to feed pigs, pig farmers in addition to feeding once a day, usually add some green feed and cleaning the pens. This can greatly reduce labor intensity and increase labor productivity. Secondly, the automatic dry feed trough feeding method is more close to the nutritional needs of pigs. They can be eaten freely without human influence, thus increasing daily weight gain and promoting pig growth and development.
In summary, the author suggests that pig farmers should use the most scientific feeding method to obtain better economic benefits when raising the conditions.
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