Analysis Of High Yielding Dairy Cow Genetic Improvement And Production Measurement Traits In Inner Mongolia Agricultural Areas

This paper describes the overview and current status of China Inner Mongolia agricultural areas high-yielding dairy cattle genetic improvement, as well as it effect on production measurement traits. Data have been collected and statistically analyzed with respect to the following parameters including:Herds size, cattle distribution, reproductive performance, growth and development traits, production capacity and milk ingredients.The results showed that Inner Mongolia agricultural areas high yielding dairy cows herd size has increased, adult cattle population is almost1100-1300head (56%of the total population). Also the use of improved varieties of frozen semen has increased the pregnancy rate (49.53%), the calf survival rate (97.13%). The heifer calf birth weight was38.93kg. Body size has showed significant increase at different reproductive stage. The greatest increases of body size have been noticed after the second delivery and the milk yield reached7249.16kg (305days production). The milk yield has significantly increased at the third delivery; milk fat and milk protein content were3.69%and3.24%, respectively and lipoprotein ratio reached1.14.We have also discussed about the existing problem of Inner Mongolia agricultural areas high-yielding dairy cow breeding, and put forward recommendations on the future development and improvement of high-yielding dairy cow breeding system, and DHI measurement system. This is of a great importance for the dairy cow production management. It will provide a database that will accelerate Inner Mongolia agricultural areas high yielding dairy cow improvement.