圆虫虫卵，痘和马立克氏病病毒，球虫及其他传染性物质，都可以由条板箱，鞋和运输工具携带。
Roundworm eggs, pox and marek's disease viruses, coccidia, and other infections materials can be carried on crates, footwear, and vehicles.
家禽对马立克氏病病毒的抵抗力或者感性可以遗传。
Resistance or susceptibility to Marek's disease virus is an inherited trait.
研究对鸡马立克氏病火鸡疱疹病毒疫苗（HVT）免疫雏鸡饲喂中药免疫增强剂后，免疫器官中免疫活性细胞的变化进行了观察。
The immunologically competent cells of main immune organs in chicken vaccinated with HVT and supplemented with Chinese Medicine ImmunologicAdditive in their diets were observed in this study.
马立克氏病病毒的马立克氏病病毒3172和3220放大器尤其适用于像那些涉及污垢极其困难的环境中使用，温度波动，或振动。
The MDV 3172 and MDV 3220 amplifiers are particularly well suited for use in extremely difficult environments like those that involve dirt, temperature fluctuations, or vibration.
当与放大器马立克氏病病毒使用，它将只响应较大件的金属一样的牙齿从挖掘机斗，工具或金属镶板。
When used with the MDV amplifier, it will respond only to larger pieces of metal like teeth from an excavator bucket, tools, or metal paneling.
连同放大器马立克氏病病毒，它只响应较大的金属部分，如挖掘机铲，设备或工具的部分或镶板的牙齿。
Together with the amplifier MDV, it only responds to larger metal parts such as the teeth of an excavator shovel, equipment or tool parts or paneling.
马立克氏病病毒(MDV)是一种致t细胞瘤的疱疹病毒，然而病毒的致肿瘤机制仍不十分清楚。
Marek's disease virus (MDV) is a herpesvirus which induces the tumor of t cells in chickens. However its oncogenic mechanism is still unclear.
马立克氏病病毒(MDV)是一种致t细胞瘤的疱疹病毒，然而病毒的致肿瘤机制仍不十分清楚。
Marek's disease virus (MDV) is a herpesvirus which induces the tumor of t cells in chickens. However its oncogenic mechanism is still unclear.
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