Due to the development and application of modern breeding technology, the production performance of ducks has been greatly improved, and the requirements for feed and nutrition are higher. On the other hand, feed accounts for 60% to 80% of the total cost of duck production. Therefore, duck producers who self-contained feed must understand the role of various nutrients and their exact content in various feeds. According to the feeding standards, the best diet can be prepared to meet the nutritional needs of ducks at different stages. Reduce feeding costs and increase economic efficiency. Issues to be aware of during duck feed preparation and storage:
Ducks often eat mollusks such as fresh fish and shrimps and small snails. These animals contain a substance called thiamine, which can destroy vitamin B1, so ducks are prone to vitamin B1 deficiency. This disease occurs mostly in ducklings and often develops suddenly within 2 weeks of age. Therefore, in the case where the duck can eat aquatic animals, it is necessary to increase the vitamin B1 content in the diet, especially in the ducklings.
Vitamin D deficiency often occurs in laying ducks, which is caused by insufficient supply of vitamin D in the diet or inadequate sunlight exposure in poultry. The diseased waterfowl showed poor growth and development, the feathers were unkempt and dull, and the laying of eggs was reduced. The shells and soft shell eggs were produced, and the eggshells were easily broken. Therefore, it is often necessary to additionally add cod liver oil or vitamin A, D3, E, etc. to the duck feed.
Ducks generally lay eggs in the early hours of the morning. Therefore, ducks must maintain a high blood calcium concentration in the early hours of the morning, otherwise they will produce sand shell eggs, malformed eggs, and even cause a drop in egg production. In the preparation of laying duck feed, it is necessary to have a fast-absorbing calcium source and a slow-absorbing calcium source, usually using stone powder and shell powder as a calcium source.
Feed ingredients and prepared feed should be stored in a ventilated, dark, dry place to prevent fat oxidation, vitamin A and vitamin E damage. Place a layer of moisture-proof material between the feed and the ground to prevent the knot and mildew of the feed. Mildew feed is easy to cause duck poisoning, dysentery and so on. In addition, the feed store should pay attention to pest control and rodent damage.
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