生菜生吃是甜的还是苦的?生菜生吃会有寄生虫吗
2022-12-04
更新时间:2022-03-15 06:48:59作者:佚名
ANALYSIS - $664 million - that's the annual cost of Porcine Respiratory and Reproductive Syndrome (PRRS) to the swine industry, reports Sarah Mikesell from the North American PRRS Symposium.Dr. Derald Holtkamp, associate professor of veterinary medicine at Iowa State, said that equates to about 9.9 million pigs per year which is far more devastating than Porcine Epidemic Diarrhea virus (PEDv), even at its worstThe industry now has an opportunity to classify herds through diagnostics, which plays a key role in managing the virus, he said.
来自北美猪繁殖与呼吸综合症(PRRS)研讨会的莎拉·麦克赛(Sarah Mikesell)报告,每年生猪产业在猪繁殖与呼吸综合症的成本有6.64亿美元。爱荷华州兽医药副教授奥尔特坎普(Derald Holtkamp)博士说,“每年相当有990万头猪死于猪繁殖与呼吸综合症,远比猪流行性腹泻病毒(PEDv)最严重的时期更有破坏性。养猪业现在可以通过诊断疾病对猪群分类,在病毒管理上扮演关键性角色。