Wet feeding is not a new technology. The old and traditional way was to mix pig food with water or whey in a bucket. As the scale of pig farms expands, in order to facilitate automated feeding, wet feeding gradually evolves into dry feeding. But recently, due to the application of computer control systems, there has been a return to wet feeding. Wet feeding has several advantages, especially for weaned pigs.
The breast milk that the piglet ingests at birth is a liquid. After weaning, it is more reasonable to continue feeding the piglet with liquid feed, but the prerequisite is that the feed system must be guaranteed and the hygienic conditions are good. Similarly, growing pigs and finishing pigs can achieve better performance with wet feeding when the recipe is correct and hygiene is guaranteed.
Wet feeding can make better use of some by-products of the human food industry. These products are cheaper than traditional feed ingredients. In addition, the use of wet feeding can often improve digestibility. Enzyme preparations are often added to feeds to increase digestibility, and enzyme preparations perform better in a liquid feed environment than dry feeds. By controlling the fermentation of liquid feed, harmful bacteria can also be suppressed. These bacteria pose a threat to the health of pigs and indirectly pose a threat to human health through pork.
The benefits of wet feeding of weaned pigs can maintain a healthy digestive environment after weaning and prevent diarrhea and other diseases. Direct feeding of dry feeds after weaning of sows results in atrophy of the small intestine and darkening of the crypts. This affects the digestion and absorption of nutrients in the digestive tract and causes gastrointestinal diseases such as diarrhea. The physical form of wet feed is similar to that of breast milk, which can reduce the adverse effects of feed morphological changes on the structure and function of the digestive tract.
It can increase the feed intake and water intake of the pigs. The newly weaned pigs have not yet fully learned to eat and drink independently, and they are still not fully adapted to dry feeds. The shape of wet feed is similar to that of breast milk, which not only facilitates the feeding of piglets, but also promotes the development of the gastrointestinal tract of the piglets and increases the volume of the digestive tract.
Increased daily gain and feed efficiency of weaned pigs. Because the wet feed on one hand maintains the health of the weaned pigs, on the other hand, it increases the feed intake and the digestion and absorption functions of the gastrointestinal tract, so it can increase the growth rate and feed efficiency of the weaned pigs.
Not only save water, but also reduce feed dust. The water supply to the piglets is made with a drinking fountain. The loss of drips, water leaks, etc. is very large. Water is supplied through the trough, and the remaining water must be drained before each feeding. This wastes a lot. With the wet feeding method, the pigs also eat a lot of water while eating, which reduces the waste of drinking water. In addition, the reduction of dust after the feed is wetted not only reduces feed wastage, but also reduces respiratory disease in pigs caused by feed dust.
Weaning pig wet feed preparation manual method. That is, in the small and medium-sized barrels or troughs, the dry feed of piglets is directly mixed with water and then fed to weaned pigs. This method of manual blending is suitable for small-scale rearing or free-range farming in rural areas. In the cold season, it is better to heat the water in advance.
Mechanical method. At present, there are already wet and dry mechanical products such as wet and dry feeders or feed water mixing tanks. Mechanized wet feeding facilities can save manpower, reduce feed wastage, improve feed utilization, and increase the frequency of feed intake for the pigs. Feeding effects are better. Weaning pigs in large and medium-sized pig farms can promote the use of this technology.
Microbial fermentation production. According to the requirements of the silo, a small pond is built in or near the farm, and the solid feed and water are mixed in a certain proportion and placed in it. It is better to inoculate a batch of beneficial microorganisms (Lactobacillus, yeast, etc.) and let it ferment. The raw material for fermentation can be roughage or roughage + concentrate. When the feed is taken out, the fermented material is taken out and the other concentrates are added, and the water is added into a wet feed to feed the weaned pigs. This method is more suitable for small pig farms.
Tips for Wet Feeding of Weaned Pigs The dry matter concentration of the wet feed should be appropriate to reduce the irritation of the gastrointestinal tract of the weaned pigs by the wet feed. The sow's dry matter concentration is about 19.6%, so when the pig is weaned, the water and feed ratio of the wet feed is better when the ratio is about 5:1, and can gradually increase as the age of the pig increases.
A good wet feed must provide sufficient nutrients such as protein, energy, and minerals to the weaned pig, so the dry feed used to prepare the wet feed requires a high nutrient concentration.
When the wet feed is prepared by the fermentation method, the residual feed in the feed chute after each feed has little effect, because there are still a lot of beneficial microorganisms in the remaining feed and no mildew. However, when using other wet feeding methods, it is necessary to frequently clean the feed tank to prevent molds and other harmful microorganisms from causing the remaining feed to spoil. If you use food scraps or drowning to make wet feeds, try to be as fresh as possible without spoilage.
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