Abstract: Objective To study the dynamic changes of blood biochemical indexes of Tibet mini-pigs during the estrous cycle. Methods Take blood sample from precava of 6 female Tibet mini-pigs for testing the blood biochemical indexes, including all the indexes changed during estrous cycle, and what’s more the difference of AST between 9th and 20th day, and the difference of CHO between 19th day and 10th, 12th, 13th day was significant(P＜0.05). Besides, at different stage of estrous cycle, dynamic change of the level of Ca, Mg, ALP, Cre, CHO, TP, and Alb were obviously. Conclusion The biochemical indexes of Tibet mini-pigs have obviously dynamic change at different stage of estrous cycle, it could be useful for related biomedical researches.

Key words: Tibet mini-pig, Estrous cycle, Blood biochemical indexes