poultry 第1页

Enhancement of soil quality in a rice-wheat rotation after long-term application of poultry litter and livestock manure Emergy-based analysis of two chicken farming systems: a perspective of organic production model in China DETERMINATION OF THE OPTIONAL TIME FOR TAKING BLOOD SAMPLES BY SINGLE INTRAVENOUS INJECTION OF ~3H-LEUCINE A research on elimination of the bad smell pollution to ecoenvironment from poultry dung Determination and analysis on main harmful composition in excrement of scale livestock and poultry feedlots