College;
of;
Veterinary;
Medicine,;
Gansu;
Agricultural;
University,;
Lanzhou;
730070,;
China;
Lanzhou;
Institute;
of;
Animal;
and;
Veterinary;
Pharmaceutics;
Sciences,;
Chinese;
Academy;
of;
Agricultural;
Sciences,;
Lanzhou;
730050,;
China;
Institute;
of;
Modern;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Lanzhou;
730000,;
China;