Adult bulls are about 143 ~ 147 cm tall and weigh 900 ~ 1200 kg, while purebred cows are about 130 ~ 145 cm tall and weigh 650 ~ 750 kg.
The milk yield of dairy cows is the highest among dairy cows, with an average milk yield of 4500 ~ 6000 liters/year and a milk fat rate of 3.6 ~ 3.7%. The average milk yield of dairy cows is lower than that of dairy cows 1000 ~ 2000 liters, and the milk fat rate is 4%.
Black-and-white cattle have the characteristics of tall figure, high milk yield, mild temperament and easy management. But it is not heat-resistant and weak in disease resistance. There are differences in production performance, body shape and appearance of black-and-white dairy cows raised in China because of their complex sources, different species and different feeding management and conditions in different places.
Extended data:
Cows are tall, well-proportioned, with delicate heads, thin skin and little fat, short capillaries and obvious black and white fur. The hindquarters are more developed than the forequarters, with large and plump breasts and thick and curved mammary veins. Cows only have four nipples, which are usually in two uniform rows, 5 ~ 8 cm long. The redundant auxiliary nipples are generally short, unable to produce milk, and naturally shrink.
China Black-and-White Cow is a hybrid of various foreign black-and-white cows and bulls (Frisian Bulls) and local cows in various provinces, autonomous regions and municipalities directly under the Central Government. It is a unique dairy cow breed in China, mainly concentrated around large and medium-sized cities, industrial and mining areas and areas with relatively developed dairy industry.