2. The slaughter rate of high-quality beef cattle after fattening is 60%-75%, and the highest is 68%-72%; However, the slaughter rate of China local improved cattle after fattening is 55%-60%, and the high slaughter rate can reach over 60%. Generally, beef cattle gain the fastest weight before 1 year, and then the growth rate gradually slows down, so the slaughter age of beef cattle is 1- 1.5 years old, and no later than 2 years old.
Generally, bulls grow faster than cows, and cows have better meat quality than bulls. Crossbreeding between different purebred beef cattle can improve the meat production performance of beef cattle 15%-20%, and crossbreeding between domestic purebred beef cattle and local yellow cattle can also improve the meat production performance of hybrid beef cattle by 20%-30%.
Extended data:
Feed standard for beef cattle
1, suitable for cattle with body weight 150-200 kg: 0. 1 kg concentrated corn, 1 kg bean cake, 3 kg coarse corn stalk or 15 kg distiller's grains per day, and additives include 40 g of salt, 50 g of urea and 20 g of sodium phosphate.
2. Suitable for cattle weighing 200-250kg: refined corn 2.6kg, bean cake 1kg, coarse rice straw 2.9kg or distiller's grains 20kg, and additives including salt 40g, urea 60g, calcium carbonate 20g, rumen fluid 90mg and mirabilite 18g.
3. Suitable for cattle weighing 250-300 kg: 2.6 kg of refined corn, bean cake 1 kg, 2.9 kg of coarse corn straw or 25 kg of distiller's grains/day. The additives were salt 65 g, urea 100 g, calcium carbonate 10 g, rumen fluid 160 mg and mirabilite 35438+060 mg.
4. Suitable for cattle weighing 300-400kg: 5.7kg of concentrated corn, 0/kg of bean cake/kloc, 2.3kg of coarse corn stalk or 30kg of distiller's grains, 0/00g of salt/kloc, 0/50g of urea/kloc, 360mg of rumen fluid and 45g of mirabilite as additives.
References:
Baidu encyclopedia-beef cattle