Corn is one of the most widely used feed ingredients, and it holds great value in animal nutrition. However, when formulating feed with corn, there are several challenges that need to be addressed to ensure optimal feeding results. Understanding and mastering the proper techniques for feeding pigs with corn can greatly improve their health and growth performance.
First, after saccharification, feeding becomes more effective. When corn flour is processed, some of the starch converts into sugar, making it more palatable for pigs. The process involves placing the corn flour in a tank, adding twice the amount of hot water to create a paste, then sprinkling a 5 cm thick layer of dry powder on top. After 3-4 hours, the mixture will undergo saccharification, making it easier for pigs to consume and digest.
Second, soaking the corn before feeding helps improve its texture. Soaking allows the corn to absorb water, expand, and soften, which makes it easier for pigs to chew and digest. The recommended method is to soak the corn flour in water at a ratio of 1:1.5 (water to flour) for about 2 hours before feeding.
Third, it's important to supplement protein. Corn has a low protein content and poor quality, which may not meet the nutritional needs of growing pigs. To address this, you can add 15% soybean meal or rapeseed meal to the diet. For piglets, adding 5% fish meal can significantly improve their growth and development.
Fourth, mineral supplementation is essential. Corn is naturally low in minerals, so it's necessary to add bone meal, calcium hydrogen phosphate, and trace minerals like selenium, iron, copper, zinc, and manganese to the feed to ensure balanced nutrition.
Lastly, vitamin supplementation should not be overlooked. Corn lacks sufficient vitamins, so it's advisable to include green feed in the diet whenever possible. If green feed is unavailable, adding a multivitamin supplement to the feed can help cover the deficiency and support overall health.
By following these methods, farmers can make the most of corn as a feed ingredient while ensuring that pigs receive all the necessary nutrients for healthy growth and development. Proper preparation and supplementation are key to maximizing the benefits of corn in swine nutrition.
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