[Objective]The growth and production characteristics of different alfalfa varieties in Jiamusi were explored in the paper,in order to better study their cold re
[Objective] To provide antigen for preparation of monoclonal antibodies against E. tenella. [Method] Broiler chickens were inoculated with axenic culture of spo
[Objective]This study aimed to investigate the allelopathic effects of Torreya fargesii aril. [Method]By indoor bioassay,the effects of different concentrations