Sweet potato vines contain a lot of fiber, and the stems and leaves are juicy, which is palatable to pigs and has good nutritional value. Adding some sweet potato vines when feeding pigs in summer can supplement vitamins for pigs and reduce the probability of heatstroke. However, it should be noted that when farmers feed sweet potato vines to pigs, it is best to supplement a certain amount of concentrated feed to avoid malnutrition of pigs.
Many farmers will feed a large number of fermented sweet potato vines to pigs when fattening them, which can enhance their appetite and digestion and absorption ability, thus gaining weight, and the fermentation method is also very important.
Specifically, after crushing fresh sweet potato vines, 500 grams of starter, 3 kilograms of edible salt, 1000 kilograms of corn flour or 300 kilograms of crushed fresh sweet potato are added to each1000 kilograms of sweet potato vine powder, and these are mixed together, and the water content is controlled at about 55%, and then put into a clean fermentation barrel.
Most of the crude fiber in the fermented sweet potato vine has been removed, which is more palatable and nutritious for pigs, and has a good effect as fattening feed for pigs. In addition, if pigs want to gain weight quickly, we can also use it for pigs: Fattening Pacific, which can regulate pigs' intestines and stomach, promote pigs' absorption and utilization of feed nutrients, and thus gain weight faster.
Scientific use method of sweet potato feed
First, the root tuber
1, each unit of fresh potato is equivalent to 0.3 corn unit, which is an excellent juicy feed and a good energy feed. All kinds of domestic animals like to eat it, and it is most suitable for feeding pigs.
2. Feeding method: Cook it, mix it with 1 5-20kg cooked potato1kg concentrated feed (crude protein ≥34%) and feed it to pigs. The effect is the same as that of complete compound feed, but the feed cost is much lower than that of compound feed. Feeding sweet potatoes alone or eating them raw is not effective. If the root tuber is rotten or has black spot disease, it should be dug and buried deep, and it is strictly forbidden for people and animals to eat.
Second, dried sweet potatoes (powder)
Wash and slice the sweet potato, blanch it in boiling water, pick it up and dry it to get dried sweet potato, and crush it to get sweet potato powder. Each unit of dried sweet potato (powder) is equivalent to 0.9 corn units. It can be used as energy feed to make compound feed for feeding various domestic animals. Single feeding is not effective.
Third, sweet potato powder residue
1, sweet potato is often used to extract starch, and the residue after extracting starch is sweet potato powder residue. Its nutrient content is about 0. 17 corn units. The water content of sweet potato powder residue is about 76%, so it is easy to rancidity, so it should be fed fresh in time.
2. Daily feeding: cow 10-30 kg, pig 3- 10 kg. Pay attention to supplement protein feed and cook it when feeding pigs, and mix it with other feeds. The feeding amount shall not exceed 30% of the total feed amount (all dry matter).
If the fresh food is in danger of rancidity if it can't be fed for a while, you can evenly mix the sweet potato powder residue with a proper amount of bran, adjust the water content to 70%, and silage it alone or together with other green feeds before feeding livestock.
Fourth, sweet potato vine
1, sweet potato vine is soft, juicy, nutritious and tastes good. Each unit of sweet potato vine is equivalent to 0.05 corn unit.
2. Utilization method: First, feed fresh, pulped or chopped, with 30-40 kg/head for feeding cows, 3- 15 kg/head for pigs and 0.5-2 kg/head for geese every day. Second, feed after silage. The method is to cut the sweet potato vine before frost, cut it into short pieces less than 3 cm, air dry the water to about 70%, put it into a cement pool and a thick plastic bag, compact and seal it layer by layer, and open the cellar for use after 20-30 days.
Baidu Encyclopedia-Sweet Potato Teng