Can cows eat pig feed? Can pigs feed cows?

No, pigs and cows have different joke systems and different feed.

At present, many beef cattle breeders feed their cattle directly with pig feed or chicken feed. Cattle and sheep are ruminants, and their digestive system is completely different from that of chickens and pigs. In addition, adding a large amount of drugs and a small amount of arsenic to the feed of chickens and pigs will damage the intestines and stomach of cattle or sheep after a period of time, leading to indigestion and various diseases.

Ingredients of cattle feed:

Nutritional characteristics of beef cattle, beef cattle nutrition According to its growth law, the whole growth process is divided into two periods, namely growth period and fattening period, and beef cattle nutrition is different in different periods.

1. The growth period of beef cattle is divided into two stages, namely, from birth to 6 months and from 7 months to 12 months. During the growing period, protein grows rapidly and has high metabolic intensity. Protein, water, minerals, less fat in the body. Due to the high level of nutrition and the rapid development of various organs during the growing period, we should ensure the adequate supply of nutrients, especially protein, minerals and vitamins. Generally, in this period, the crude protein content is 14% ~ 19%, the total digestible nutrients are 68% ~ 70%, the concentrate intake is controlled at 1.2% ~ 1.5% of the body weight, and the roughage is freely fed, with a daily gain of 0.7 ~ 0.8. The required energy should be determined by the number and results of protein. With the increase of dietary energy (from 25. 1mj/kg to 46.0mj/kg), the daily nitrogen deposition of cattle with body weight 100 ~ 275kg increased from 14g to 43g, which indicated that protein synthesis needed energy. It was found that the amount of rumen-bypass protein was not the limiting factor for the weight gain and feed utilization rate of steer with weight 130 ~ 270 kg. Increasing the amount of rumen bypass protein in feed can not improve the fattening performance of beef cattle. Corn silage is a good feed for castrated cattle in growing period. Alfalfa is beneficial to the formation of beef marbled meat, but it will increase fat deposition. 2. The fattening period of beef cattle can be divided into early fattening period (13 ~ 18 months old) and late fattening period (18 ~ 24 months old). The nutritional characteristics of this period are low protein and high energy to meet the needs of intramuscular fat deposition and marbled meat formation. In the early stage of fattening, feed is restricted to promote muscle growth to the maximum extent, concentrate is controlled at 1.7% ~ 1.8% of body weight, roughage is freely eaten, generally accounting for 57% ~ 49% of the total intake, silage accounts for 28% ~ 24% of the daily intake, and the daily gain is 0.9 ~/kloc-0. The study of adding roughage to the diet of beef cattle in the late fattening period found that when the diet contains 30% green straw, it has no effect on production. For example, when the straw content exceeds 45%-50%, the production performance will be reduced, the slaughter period will be prolonged and the slaughter performance will be reduced. However, some studies have shown that adding 2% ~ 4% fat to the diet composed of low-quality roughage (wheat straw accounts for 62% ~ 76% in the diet) during this period can improve the intake and digestibility of nutrients without affecting the digestibility; However, when the fat content exceeds 6.3%, the total energy digestibility of dry matter and organic matter and the digestibility of acid-washed fiber decrease. In the later stage of fattening, all feeds can be eaten freely, especially concentrate feed should be added. During this period, concentrate intake generally accounts for about 1.8% of body weight, roughage intake accounts for 34.6% ~ 3 1.0% of daily intake, and the daily gain is 0.7 ~ 0.8 kg.

Ingredients of pig feed:

1, bran feed protein feed

It mainly includes rice bran, wheat bran, sweet potato vine bran, peanut vine bran, bean leaf bran, soybean straw bran and so on. The dosage is 10%- 15% of the total feed, with the maximum not exceeding 20%.

2. Cake feed

It mainly includes rapeseed cake, peanut cake, cottonseed cake, bean cake and sesame cake. The proportion is generally 10%-25% of the total feed. Bean cake and peanut cake have good nutrition and can be matched with 20%-25%; Rapeseed cake and cottonseed cake are 8%- 10%.

3. Slag protein feed

It mainly includes distiller's grains, chaff, vinegar grains, powder dregs, bean dregs, bagasse and so on. The general dosage is 5%- 10% of the total feed. It is not suitable to feed distiller's grains to pregnant sows and late fattening period.

4. Food and feed

Mainly includes corn, barley, wheat, sorghum, broad beans, peas and so on. The general dosage is 50% of the total feed, up to 60%.

5, animal feed protein feed

It mainly includes silkworm chrysalis, fish meal, bone meal, blood meal and feather meal. The general dosage is 4%-8% of the total feed, which is not suitable for feeding blood powder to piglets. 5%-8% fish meal can be mixed into the feed for fattening pigs, and attention should be paid to the content and proportion of calcium and phosphorus when using this feed.

6, mineral feed

It mainly includes shell powder, eggshell powder, calcium carbonate, calcium phosphate and salt. The general dosage is 65438+ 0%-2% of the total feed, and the dosage of salt does not exceed 0.5%. If trace elements are added, they should be used in strict accordance with the prescribed amount.

7, green feed protein feed

It mainly includes aquatic duckweed, water hyacinth, water hyacinth, Alternanthera philoxeroides, leaves and vines of crops, ryegrass, alfalfa and wild peas. This kind of feed is green, juicy, nutritious and easy to digest, generally accounting for 35%-40% of the total feed.