[Objective] In order to make out differences between drug resistance spectrum types of different animal sources of Salmonella.[Methods] Selenite cystine broth,S
[Objective] To study the effects of Chinese herbal additives on the number of intraepithelial lymphocyte and goblet cells of intestinal villus of heat stress la
Slow-release non-protein nitrogen feed has a large market demand. It has a long research history, but its production technology needs further improvement in ord
[Objective] To investigate effects of Cordyceps feed additive on growth performance,laying rate and egg quality in laying ducks.[Method] A total of 270 healthy