1 Application of beef cattle frozen semen to improve local cattle Since the 1970s, China's provinces have generally introduced foreign beef cattle breeds such as Charolais, Limousin and Simendal to establish frozen semen stations. Under ultra-low temperature conditions, the semen is made into granular or plastic fine tube semen formulations, artificial insemination methods for estrous cow insemination and mating, rapid growth and development of hybrid offspring, meat production performance, 18-month-old improved cattle weight up More than 300 kilograms, more than 50% more than the same month old local cattle. 2 Before the sale or slaughter, the old cruel cattle who quickly fatten cattle cattle or lose their serviceability and breeding ability can gain more than 100 kg in 80 to 100 days of fattening period through scientific feed formulation and careful feeding and management. Improve the slaughter rate of cattle, the rate of meat production and economic benefits of cattle breeding. The main technical key is: Strictly choose the shelf cattle, do a good job of deworming and fattening the stomach before fattening, use grazing and supplementary feeding methods for fattening in summer, fatten and fatten in plastic greenhouses in winter and spring, make full use of silage and ammonia. Chemicals, micro-storage and other by-products such as straw feed and distiller's grains, appropriate supplements can be properly fed. 3 Using straw to raise cattle is a herbivore, which can convert various straws of pasture and crops into meat products such as meat and milk. Straw-fed cattle is the use of crop straws, such as corn stalks, rice straw, and other pods, which are short-pressed and packed in closed cellars or pools. They are treated with microorganisms or treated with urea and stalks to ferment and dry them, thus increasing the nutritional value of stalks. Digestibility rate, every 4 kilograms of straw feed is equivalent to the nutritional value of 1 kilogram of corn, which greatly reduces the cost of raising cattle. At the same time, straw is returned to the field through the abdomen, which is conducive to soil improvement, improve soil fertility, and promote grain production. 4 Feeding cattle with non-protein nitrogen 4.1 Ruminants fed with urea, such as cattle and sheep, can use non-protein nitrogenous compounds such as urea to synthesize proteins. The nitrogen content of urea is as high as 46%, 1 kilogram of urea is equivalent to the nutritional value of the protein contained in 7 kilograms of soybean cake, and the source is wide and the cost is low, which is an effective way to solve the shortage of protein feed in our country. The amount of urea fed is generally calculated based on body weight. The amount of urea fed is 20-30 grams per 100 kilograms of body weight. It is advisable that the amount of daily feed for adult cattle is no more than 100 grams per head. The main technical points are: feeding accuracy, training for eating, mixing and licking, feeding in batches, non-beverage service, no drinking water within 2 hours after feeding, found that poisoning with sugar, vinegar can also be added by 0.3% to 0.4% Straw made of urea silage fed cattle. 4.2 Add Urea Phosphate Urea Phosphate Product Name Niu Yang Zhuang is an international standard standard ruminant animal additive. It can significantly increase the protein content and conversion rate of feed, and can increase production performance by more than 15% for beef cattle and cows. Dissolve with water and mix with feed. Each day 200 kg body weight feed 20 grams. 5 Utilizing ruminin to feed bovine ruminin, also known as monensin, can control and improve the ratio of volatile fatty acids in rumen fermentation and increase daily weight gain and feed digestibility. The ruminal hormone is added to fattening beef, and the daily gain and feed utilization rate can be increased by 10% to 15%. 100-360 mg of ruminal per day is used for each head, there is no withdrawal period, and it can be fed to the slaughter weight. Can be made into premix before use. The method is to prepare a premix (containing 150 mg/kg ruminal) by thoroughly mixing rumen 250 g (containing 60 g/kg pure product) with 100 kg cornmeal, and mix the premix and mix thoroughly before feeding. , feeding once a day. 6 Debriefing with Afortin (Bombus) The drug is a high-efficiency, broad-spectrum, low-toxicity, safe new insect repellent developed by Beijing Agricultural University. For cattle, poultry, and other livestock and poultry nematodes in vitro and in vitro larvae, cockroaches, cockroaches, fly maggots and other internal and external parasites at the same time to expel, significantly increase the effect of cockroaches. The medicine is divided into four dosage forms: injection, capsule, powder and tablet, which are easy to use.
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