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中国禽病网
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任老师,新城疫干苗克隆30和4系有什么区别,一个苗可以重复用吗?
克隆30比四系毒力更弱一些,适用于首免和抗体不齐的鸡群,之后多使用四系疫苗。
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今日热点
Joint Chiefs chair fired
Named FBI deputy director
MSNBC cancels Reid’s show
Sentenced for bombing home
Patel to be named ATF chief?
Frozen shakes recalled
Largest drone attack on UKR
Kentucky flooding death toll
Ready to resign for peace
Effort to ban DEI blocked
Receives Chairman's prize
Files motion to dismiss case
To drop immigration case
Israel's tanks in West Bank
To perform free concert
5 found dead in IN home
Seeks nearly $40B in fire aid
Legendary soul singer dies
AP sues Trump officials
Recalling 240,000+ cars
Coinbase: SEC to drop suit
Demands productivity report
Sports gambling probe
Security issue diverts flight
‘Deadwood’ actor dies
Earns 100th World Cup win
Warmer weather on the way
Former All-Star pitcher dies
FDA says shortage over
Judge allows staff removal
PA hospital shooting
Pepperdine University sues
Plans to cut 5,400 jobs
LA DA opposes new trial
TX measles outbreak grows
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