- 作者: 謝快樂
- 中文摘要: HVT病毒,f-126株,以無特定病原(spf)之?胚胎細胞培養繁殖後收集儲存於液態氮,經雜菌檢?,徽菌檢查, 麥可菌檢?及沙氏桿菌檢?均屬陰性,其經接種?胚胎後抽尿液檢?亦無具血球凝集性病毒之?染;該種毒以十劑量( 15,000PFU/?)接種一日齡小?後觀察四個月後解剖,均無馬立克病之臨床症狀及病灶,顯示其安全性?問題,該種毒 以一劑量接種一日?小?後於二週?時以台灣分離之馬立克病?毒攻擊,顯示有九成以上之保護力,該種毒已符合美國聯 邦法規(CFR) Title 9 ,第一章,第113條165款之規定,合於做?疫苗生?用之種毒。
- 英文摘要: Herpes virus in the turkey (HVT), strain FC-126, which was propagated in chicken embryo fibroblast cultures (CEF) from specific pathogen free (SPF) eggs, and stored in liquid nitrogen, was shown by sterility test to have no microbial contamination. Inoculation with large amounts of virus in day-old chickens did not produce clinical signs or gross lesions of Marek's disease (MD) during the four-month experimental period. Chickens inoculated with HVT were protected against the challenge of virulent MD virus which was isolated in Taiwan. This preparation of the seed virus meets the requirement of 'Code of U.S. Federal Regulations' Title 9, Chapter 1, #113.165 as a master seed virus for MD vaccine production.
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