思想
发表于 2025-3-23 11:02:47
http://reply.papertrans.cn/67/6662/666144/666144_11.png
colostrum
发表于 2025-3-23 14:55:00
http://reply.papertrans.cn/67/6662/666144/666144_12.png
legitimate
发表于 2025-3-23 21:24:09
Newcastle Disease in Free-Living and Pet Birds,Newcastle disease (ND) has economic and ecologic impact on pet and free-living as well as on domestic birds. Virtually all of the approximately 8,000 species of birds seem to be susceptible to infection with Newcastle disease viruses (NDVs).
expdient
发表于 2025-3-23 22:52:59
Control by Vaccination,The control of Newcastle disease (ND) is based on complementary hygienic and medical measures. Full protection can only be assured if vaccination programmes are combined with commonsense hygienic precautions.
JOG
发表于 2025-3-24 02:48:08
,Newcastle Disease — Vaccine Production,Newcastle disease (ND) is highly contagious, and attempts to control it by slaughter, sanitary measures and quarantine are often unsuccessful. In those instances when the disease either exceeds the capacity of an eradication authority to contain it, or when it becomes endemic, vaccination of flocks at risk is a highly effective method of control.
规范要多
发表于 2025-3-24 08:16:36
http://reply.papertrans.cn/67/6662/666144/666144_16.png
密码
发表于 2025-3-24 10:43:32
http://reply.papertrans.cn/67/6662/666144/666144_17.png
粗糙滥制
发表于 2025-3-24 14:58:03
Newcastle Disease Virus Replication,udied effectively as a prototype for the Paramyxoviridae family of negative strand RNA viruses (1). In this role, NDV has several distinct advantages. It is easy to work with in cell culture because it is relatively stable, and replicates in many cell types. The NDV replication cycle is the most rap
encyclopedia
发表于 2025-3-24 21:53:05
http://reply.papertrans.cn/67/6662/666144/666144_19.png
贞洁
发表于 2025-3-25 01:26:41
Molecular Basis of Infectivity and Pathogenicity of Newcastle Disease Virus,ich depend on the host infected as well as on the virus strain involved. Chickens seem to be the most susceptible species. Ducks and geese, on the other hand, are reported to be refractory even to the most pathogenic viruses for chickens (27). There is evidence that adaptation of a particular NDV st