(1) Comprehensive nutrition The so-called comprehensive nutrition is the requirement that the protein and amino acids, energy, minerals and vitamins in the diet meet the standards for feeding. To do this, diversified feeds must be used in conjunction with the diet so that nutrients between multiple feeds can be supplemented to increase the nutritional value of the diet.
(b) The appropriate volume of feed When preparing feed, we must pay attention to the relationship between feed intake and feed volume. If the compound feed volume is too large, due to the pig's limited gastrointestinal volume, it cannot eat so much and nutrients are not satisfied. Conversely, if the feed volume is too small, the pigs eat more and waste, and feeding satisfies the standard can not satisfy satiety, but also affect the improvement of feed utilization.
(C) Control of Crude Fiber Content Pigs are monogastric animals and can hardly digest crude fiber. Crude fiber not only fails to supply energy, but also reduces the utilization of other nutrients and reduces the pig's production performance. The content of crude fiber in the compound feed is not more than 4% for piglets, 8% for finishing pigs, and not more than 10% for male and female pigs.
(D) pay attention to the palatability of feed in the preparation of feed should pay attention to feed palatability, good palatability, can stimulate appetite, increase feed intake. On the contrary, it reduces the intake and affects the production performance.
(5) Selecting feeds according to local conditions The feedstuffs cost accounts for the largest proportion, which is about 70%, in the pig production cost. Therefore, when formulating feeds, it is necessary to consider meeting the nutritional needs and consider the cost. According to the local conditions, a wide range of sources, low prices, and nutritious feeds can be selected to reduce the cost of feeding.
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