In order to prolong semen preservation and improve pregnancy rate, semen freezing was studied with German shepherd dogs for experimental animals. The semen of f
To investigate the effects of aluminium (Al) exposure on amino acid neurotransmitters, the chickens with different levels of subchronic Al poisoning were estabo
A field experiment was conducted to elucidate the regulation mechanism of different irrigation schedules on population photosynthetic of winter wheat. The exper