| 英文摘要 |
Since the climate in Taiwan is hot and humid, the reproductive performance of dairy cows in Taiwan usually decreases due to heat stress. This phenomenon causes the decline in pregnancy, birth and milk production of dairy cows, leading to a great economic loss in dairy industry. Previous studies have shown that mice with premature ovarian failure can restore their fertility by injecting cells into their ovaries. I suppose that the reproductive ability of dairy cows can be restored by similar techniques used in mice. In order to demonstrate this hypothesis, a specific injection device for cows is needed. Therefore, the goal of this project is to develop an ovary-specific cell injection device for dairy cows. |