Core Tip: The following article introduces pig farmers to choose a reasonable concentrated feed based on the pig breed.
It is well known that feeds are selected according to the variety, and the variety is one of the four major factors in the pig industry. Under the same nutritional level and feeding management conditions, the growth rate, feed conversion rate and carcass quality of different breeds of pigs were different. Therefore, when selecting the feed, the breeder should choose different grades of concentrated feed according to the breed of pigs. If the pigs raised are binary or ternary hybrids, you should choose to use high-grade materials to increase productivity; if the pigs are local varieties, you can choose medium and low-grade materials to reduce costs.
The ratio of feed to reasonable concentration of feed is a mixture of additive premix, constant mineral feed and protein feed mixed in a certain proportion. The energy feed that is usually matched with it is corn, wheat bran, and the like. The matching method is very simple. On the label of each bag of feed, the formula for different growth stages of the pig is marked, as long as the mixture is evenly mixed according to the above ratio. However, some breeders blindly increase the proportion of concentrated materials in order to allow pigs to grow faster and advance in advance when the price of pigs rises. This will increase the protein in the feed, reduce the energy, and the excess protein can not be absorbed by the pig, which may cause indigestion or even diarrhea in the pig. In addition, some households reduce the proportion of concentrated materials in order to reduce costs when the price of pigs is low, which is easy to cause nutrient deficiency, resulting in hindered growth, poor development, and low feed conversion rate, resulting in increased costs.
Some farmers have asked if they can replace some concentrated materials with soybeans or bean cakes during the ingredients. The author believes that it is best not to do this. Because both soybean and bean cake are protein feeds, replacing them with concentrates reduces the amount of additive premix and constant mineral feed in the mixed feed, which leads to uneven nutrition and affects the feeding effect.
There are also raisers asking if the formula can be adjusted as the season changes. The author thinks it can, but it should be appropriate. In the low temperature season in winter, the energy required for the pig to maintain body temperature can be increased, and the proportion of energy feed can be appropriately increased; in summer, the proportion of energy feed can be appropriately reduced.
There are two feeding methods and methods, namely, free feeding and divided feeding. The advantage of free feeding is that it can maximize the production speed, shorten the production cycle, make the pigs evenly uniform, and tidy out, but the later carcass is more fat. The advantage of fractional feeding is that it can control the quality of carcass, increase the rate of lean meat, control the utilization of nutrients, and improve the conversion rate of feed, but the daily gain is reduced and the fattening efficiency is reduced. Therefore, according to different varieties, seasons and other factors, the method of pre-release and post-limitation should be adopted, that is, free open feeding should be adopted in the early stage of fattening. The lean meat type pigs weigh 75 kg, and the general high-generation soil pigs reach 65 kg. For limited free feeding or limited feeding, to increase lean meat rate and reduce feed consumption.
Feeding methods are thinner feeding, wet mix feeding (feed ratio: 1.5:1 to 2:1), wet feed (feed ratio: 3:1 to 6:1) and dry feed ( Includes full price pellets). Under normal circumstances, dry feed is better than wet feed, wet feed is better than wet feed, wet feed is better than thin feed. However, some experts pointed out that feeding dairy pigs with milky thinner has a good effect.
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