Through feeding trial and metabolism trial, performance, nutrient availability, enzyme activity and viscosity of chyme were investigated.
通过消化试验和饲养试验，测定试鸭的生产性能、养分利用率、食糜酶活性及黏度。
Through feeding trial and metabolism trial, performance, nutrient availability, enzyme activity and viscosity of chyme were investigated.
通过消化试验和饲养试验，测定试鸭的生产性能、养分利用率、食糜酶活性及黏度。
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