performance, growth, fc, digestibility for poultry farm feed quality, data research

poultry feed performance growth production meat egg farm conversion layer chickens enzymes digestibility premixes additives protein nutrition gut health healthy concept conceptual designs products brochure intestine chicken broiler amino acidifiers pellet animal phytase cellulose exogenous xylanase supplementation hemicellulose phytic acid diet glucanase mannanase structure presentation data table research enzyme quality improvement additive brochures flyer problems