(1) Selection of Shelves for Shelves (1) Shelves should be selected for cattle that are easy to feed and easy to feed. That is, it is required that the shelf cow be strong, early-maturing, early-fat, not picky eaters, and those with high feed rewards. Most of these cows are bested by foreign breeds such as Simmental, Shorthorn Red, Charolais, Limousin, and Danish Red, and China's elite breed of yellow cattle. Non-hybrid indigenous cattle breeders have poorer fattening effect. (2) Sub-animals should choose qualified cattle. That is, to select a good quality of meat, welcomed by the buyer, can sell a good price of the shelf cattle. These cattle should be shelf-stranded cattle over 1.5 years old, weighing 300 kg or more, with wide body, and preferably bulls. (b) Preparation before finishing (1) Sites should be selected where the terrain is high and dry and north is facing south. The building is a heat-preserving fixed house that can prevent rain, wind and cold, and it is equipped with sewage and ventilation facilities. Shewon is suitable for 7-25 °C, each cow covers an area of ​​about 3.7--4.0 square meters, the entrance and exit of the cowshed should be equipped with a disinfection tank. (2) Shepherd cows, selected or purchased from overseas, are kept in isolation for 2 weeks for observation. (3) One week before fattening, 20 mg/kg of body weight of ambibendazole was used or mixed with levulinyl hydrochloride 6.5 mg/kg body weight in the roughage. (4) According to the weight, age, sex, breed and nutritional status of the cattle, the cattle should be fed with reasonable groups. (5) In order to prevent the Bulls from fighting and causing damage, the horns should generally be sawn off before the cattle are fattened. (iii) Finishing techniques The fattening diet formula for beef cattle is mainly straw. Straw and forage must be chopped and cut to a length of 1-1.5 cm. Feeding order is to drink grass after feed first, regular ration, 3-4 times a day (see table 1 for diet formula). The length of the yak string is 56-60 cm to prevent the cow from turning back. Brush the bovine body once or twice with a stiff brush. After each feeding, the feeding pens should be cleaned and brushed, and the pens should be disinfected once a week with a disinfectant solution. Observe the health status of the cattle at any time and find out if problems are solved in time.
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