First, beef cattle fattening methods: due to the differences in natural conditions and feeding methods, fattening methods mainly include the following:

1. Fattening methods of 6-month-old calves;

2. Fattening method of young cattle aged 12-14 months;

3. Fattening methods of shelf cattle above 4 months of age;

4. Fattening methods in easy land.

Second, beef cattle fattening period feeding technology

1, forage feed diversification, reasonable mix: cattle diet is generally composed of coarse (green) feed and concentrate two parts, not only requires appropriate volume and feed intake (dry matter), but also needs to ensure that the quality and quantity of meet. As the farmer said, "mixed herbs, cattle love to eat, easy to fat."

2, the forage feed is relatively stable, to prevent sudden changes in cattle fattening period, especially intensity fattening or rapid fattening, which requires the forage to be relatively stable. Sudden changes will inevitably cause changes in the rumen environment, directly affect the rumen microflora and fermentation activities, resulting in a decrease in the degree of fermentation and the digestion and absorption rate of forage, and even cause diseases of the digestive tract.

3. The structure of refined roughage in the diet should be reasonable Under normal circumstances, with the progress of the fattening period, the proportion of refined roughage in the diet is also different: At the beginning: roughage accounts for 70%, concentrate accounts for 30%. Medium stage: roughage accounted for 30%, concentrate accounted for 70%. Unscheduled: roughage accounted for 10%, concentrate accounted for 90%. The ratio of energy to protein in the concentrate mixture is 8020 or 7525.

4, regular feeding, less to add frequently. Feed three times a day, drink water once in the morning and afternoon, mix the grass and feed it again, feed it first and drink it later.

5. Drink enough water and keep clean. During fattening, the amount of water that cattle drink has a lot to do with feed properties and climatic conditions. Cattle fattening free to eat, should be set up a tank, drink with thirst. Grazing fattening or tethering feeding, regular drinking water, 2-3 times a day, to drink enough as the principle, the water needs to be changed often, keep clean.

6, pay attention to the cattle picky eating and anorexia, must give enough roughage, improve the palatability of the diet, can add a small amount of molasses, feed more bran, barley, oats, or use large cereals instead of powdered feed. Anorexia near fattening period should be considered in a timely manner.

3. Management measures for the fattening period of beef cattle: the reserve cattle selected for fattening should be quarantined one by one to avoid the spread of the disease and cause economic losses. Clean the enclosure before purchase and disinfect it with phenol soap, carbolic acid or Bordeaux liquid. The gutters and troughs are cleaned, the cattle bed is covered with new bedding or sawing, and the general management measures during the fending period are as follows:

1, group, individual number, establish fattening records;

2. Remove internal and external parasites; Ectoparasites affect the quietness of cattle, which is not conducive to feeding and rest, and affect the quality of cattle skin invasion. The internal parasites not only compete for the host's nutrition and cause the consumption of nutrients, but also parasitic in the lungs, liver, brain and muscles, which will cause diseases and even infect people. It has no fattening effect. The commonly used broad-spectrum deworming drugs are levamisole hydrochloride, protiimidazole, ifortin and so on. Acariasis is highly contagious, once found, immediately isolated treatment, with acaricides to disinfect cattle and contaminated equipment. It was treated with diformamidine, deltamethrin, ivermectin, paramidophos, diazine gronol, Lindane, phoxime and trichlorfon.

3, castration: Nearly 40 years of research results believe that adult bulls must be castrated in the first half month of fattening, young bulls can not be castrated, but early separation, separate feeding management, is conducive to fattening, and can improve carcass quality.

4, brushing and exercise: brushing must be timed, 1-2 times a day, after feeding, from head to tail, first back waist, hind thigh and limbs, repeated brushing, during fending off the shelf cattle can be properly exercised to promote the development of digestive organs, the middle and late must limit movement;

5, according to local conditions, group feeding or bolt feeding general shelf cattle intensity fattening, free feeding can be group feeding, fattening fence, each group of 10-20 cows, each cow bed area of 4 square meters, adult cattle (old cattle) can be fast fattening;

6. Keep the barn warm and heat free, keep it dry and clean;

7, regular weighing: the whole fattening period of 90-120 days three periods, each period on time to weigh live weight, in the morning on an empty stomach