Antibiotics: commonly used chlortetracycline, bacitracin zinc, etc., mainly used to promote the growth of calves. Usage: The dosage of chlortetracycline is 30-70 mg per head of 3-6 months old calf, and it is added to the feed to feed; bacitracin zinc is added in the amount of 10-month-old calf 10-100 mg per kg of mixture. 4-40 months old, 4-40 mg.
Sodium bicarbonate: regulates rumen pH, increases appetite, promotes cow health, and improves production performance. The fattening beef cattle was added in an amount of 1.5% of the concentrate mixture.
Monensin: promotes the propagation of ciliates and beneficial microorganisms in the rumen, inhibits methane formation, and improves feed conversion and protein utilization. To use: Increase by the specified amount and mix evenly with the concentrate. Feed once a day, 60 mg per day in a week, and gradually increase to 100-360 mg per week.
Rare earth: It is a kind of feed additive for beef cattle, which has good feeding effect and high economic benefit. Usage: Add 8-10 grams per fattening beef cattle daily, and feed them in 3 times. Mix a small amount of concentrate before feeding, then gradually expand the mixture to ensure uniformity.
Zeolite: It can adsorb harmful gases from the gastrointestinal tract of cattle, and slowly release the adsorbed ammonium ions, which can be used to synthesize bacterial proteins of bovine rumen microorganisms, improve the digestibility of feed nutrients, and provide various trace elements for cattle. Usage: The usual amount is 4%-6% of beef cattle concentrate mix or 1.5%-2.5% of diet.
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