There are 14 commonly used vitamins. Fat-soluble vitamins include vitamin A (retinol), vitamin D (calciferol), vitamin E (tocopherol), and vitamin K (anti-bleeding vitamin); water-soluble vitamins include vitamin B1 (thiamine) and vitamins. B2 (riboflavin), vitamin B3 (pantothenic acid), choline, vitamin B5 (nicotinic acid, niacinamide), vitamin B6 (pyridoxine), vitamin B7 (biotin), vitamin B11 (folic acid), vitamin B12 ( Cyanocobalamin), vitamin C (ascorbic acid), etc. Currently used are cod liver oil, yeast, malt, cottonseed oil and other vitamin-rich feeds. Also use a variety of vitamins.
Cod liver oil is the main source of vitamin A and vitamin D. It can be fed at 800-1000 units per day, preferably after drip in the pot. If you are feeding concentrated or gelatinized cod liver oil, it should be diluted with vegetable oil at low temperature. If you have liver and fresh sea fish all year round, you don't need to supplement cod liver oil. Vitamin A in cod liver oil is easily destroyed by oxidation. It should be sealed when stored, placed in a cool, dry and dark place. It should not be stored in a metal container. Use cod liver oil to pay attention to the date of manufacture, in case of long-term failure and waste. It is forbidden to feed spoiled cod liver oil.
Wheat bud is an important source of vitamin E, and contains phosphorus, calcium, manganese and a small amount of iron. It is an important feed for supplementing vitamin E and improving fertility during the breeding season.
Method for preparing wheat buds: Put the washed wheat into the clear water with a little salt and soak for 10-15 hours. After the fish is removed, spread it in a wooden dish, about 1 cm thick, cover with gauze, put Incubate at 15 Â° C to 20 Â° C in the dark. Sprinkle water twice a day to keep the grain clean and moist. Light yellow malt can be produced in 3 to 4 days. Generally, 1 kg of wheat can produce 2 kg of yellow malt, and each kilogram of yellow malt contains 250 to 300 mg of vitamin E. It is forbidden to feed the roots with mildew or malt with reticular white fungus.
Cottonseed oil is also an important source of vitamin E. Vitamin K3 can be used per kilogram of cottonseed oil. Refined cottonseed oil should be used when feeding, because crude cottonseed oil contains toxins such as gossypol.
Vitamin E has the function of preventing fat oxidation. It should be ensured for perennial supply as much as possible. Some grains and their by-products, such as cornmeal and su seed oil, also contain antioxidants, which are mixed with animal feed to ensure the nutritional value of the diet. Certain benefits.
Yeast is not only the main source of B vitamins, but also a concentrated protein feed. Commonly used yeasts are baker's yeast, brewer's yeast, medicinal yeast, and feed yeast.
When using yeast, in addition to medicinal and forage yeast, it should be warmed to kill a large amount of live yeast contained in the yeast, otherwise it will cause gastrointestinal swelling after eating live yeast, serious Can lead to death. In addition, the utilization rate of live yeast without warming treatment is extremely low, and only 17% of the vitamins can be utilized. The yeast after warming treatment can be fully utilized. However, the B vitamins are destroyed by alkali or heat. Therefore, it can be immersed in hot water at 70 Â° C - 80 Â° C for 15 minutes during sterilization. Yeasts that do not have live bacteria (such as feed yeast) can also be fed without warming and then mix thoroughly with water. If the yeast and vegetables are stirred together, the feeding effect is better. When using yeast, feed it separately from alkaline bone meal to prevent damage to the B vitamins in the yeast.
When the dry yeast is supplied to the diet, each can be calculated by 5-8 grams; if liquid yeast is used, the dosage should be increased by 5-7 times. When the diet is mainly meat, the amount of yeast can be reduced; when it is mainly fish, the dosage should be increased appropriately.
A single vitamin or multivitamin preparation can also be added to raise the sputum to meet the needs of various vitamins. When using vitamin products, be sure to follow the instructions for feeding. The special-purpose bag is replaced by VC in the traditional ordinary VC 10 or more.
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