Experiment 1, a strain of IBDV was isolated from IBDV-suspected chickens in Shandong province and the pathogenicity on specific pathogen free (SPF) chicken was studied.
试验1中，从山东省某疑似感染IBDV的鸡场分离到1株IBDV野毒，并就其对SPF鸡的致病性进行了研究。
Experiment 1, a strain of IBDV was isolated from IBDV-suspected chickens in Shandong province and the pathogenicity on specific pathogen free (SPF) chicken was studied.
试验1中，从山东省某疑似感染IBDV的鸡场分离到1株IBDV野毒，并就其对SPF鸡的致病性进行了研究。
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