In recent years, there has been growing interest in the development of dairy cow production. Raising milk bulls has become a popular way for farmers to increase their income. However, many cattle farmers fail to properly raise high-quality milk bull calves or apply scientific feeding methods, leading to low economic returns. To improve the profitability of raising milk bulls, we have gathered and shared the experiences from model villages that successfully implement fast-growing practices for dairy bulls, offering valuable insights for farmers.
After conducting field research, it was found that most black-and-white cows are castrated except for those used for breeding. These cows have excellent feed conversion rates, grow quickly, and produce lean meat. In recent years, many demonstration farms have started raising black-and-white crossbred males with yaks. On average, raising these calves for 1 to 1.5 years can generate profits of around 400 to 500 yuan. With 100 kilograms of milk and some milk replacer, calves can reach 350 kilograms at one year old and 450 to 500 kilograms by 1.5 years. Some farmers in the demonstration villages have used a sawdust-based mixture for calves aged 5 to 9 months, which showed high digestibility, minimal odor in feces, and fewer gastrointestinal issues. The meat after slaughter is white and tender, with a good flavor.
The formula for this mixture includes: 3 kg of corn flour, 1.15 kg of bran, 0.75 kg of soybean cake or sunflower cake, 0.05 kg of bone meal and salt, and 2.3 kg of sawdust. Sawdust makes up 31.5% of the total mix, primarily using poplar sawdust.
Farmers should be aware that if they plan to keep the bull calves for slaughter at one year old, castration is not necessary. However, breeding experience shows that castration can help with weight gain, although it may temporarily slow growth after the procedure. If farmers intend to raise the calves until 1.5 or even 2 years old, castration is essential. It is best to perform castration when the calf is around one year old. Breeding practices also indicate that spring is the ideal season for castration, and most improved cattle are castrated at one year of age.
By following these best practices, farmers can significantly improve the health, growth rate, and overall profitability of their dairy bull calves.
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