LCT's pig herd is derived from the Sub-Antarctic Auckland Islands and bred in bird-proof pathogenfree facilities.
LCT的猪群来自于近南极的奥克兰岛且在防鸟的，不带致病病原体的设施中繁殖。
2
Experiment 1, a strain of IBDV was isolated from IBDV-suspected chickens in Shandong province and the pathogenicity on specific pathogenfree (SPF) chicken was studied.
Using SPF(Specific pathogenfree)animals as the breeding stock and adopting synthesize preventive measure, the experiment mouse and rat of clean grade were reared in barrier system for 2 years.