Why only cows have nose rings? Why not pigs, horses and sheep?

The scientific explanation is:

Young bulls and service cows should wear noses and nose rings to train their servants at the age of 65,438+0. Other domestic animals, such as sheep, chickens and ducks, are mainly eaten by people. When raised, they are mainly stocked and do not need to wear rings. The service cattle, which are mainly used for farming, do not eat their meat, but rely on their physical cultivation, so they need to wear nose rings.

As a bull, it is necessary to ensure the quality of green roughage and increase the dosage of concentrated feed in order to obtain higher daily gain and prevent the formation of grass belly. Ensure 2-3 hours of exercise every day. Wear a nose ring for management and training at the age of one. Brush frequently to ensure the cleanliness of cattle, make people and cattle friendly and prevent bad addiction. When the growth and development are normal, sperm collection can be started at the age of 18 months, and the frequency of sperm collection is controlled at 1 time per week; When I was 2 years old, I switched to normal sperm collection, usually twice a week.

Calves must be divided into male and female groups after weaning, and they do not need to be tied and allowed to move freely; And weigh regularly to check the growth and development.