搜索优化
English
全部
搜索
图片
视频
地图
资讯
Copilot
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最佳匹配
最新
资讯
生物通
6月
牛呼吸道疾病(BRD)犊牛鼻腔微生物组研究:农场因素比疾病状态 ...
在奶牛养殖中,牛呼吸道疾病(BRD)严重影响牛群健康和经济效益。研究人员采集美五地约 400 份犊牛鼻腔样本,对比健康与患 BRD 犊牛鼻腔微生物组及致病菌丰度。结果显示农场对微生物组影响更大,仅加州患 BRD 犊牛的曼氏溶血杆菌丰度有差异。该研究为 BRD ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Launches Florida Senate bid
China OKs nature reserve
Iran, IAEA reach agreement
AU OKs chlamydia vaccine
Dog registered to vote
Advanced by Senate committee
Firefighter dies battling fire
Freed from captivity in Iraq
Body inside impounded Tesla
Court halts Cook firing
Keeps freeze on foreign aid
Manhunt underway in NYC
Bringing Xbox to cars
WBD sues Sling TV
Washington teen arrested
60+ containers fall off ship
Apple event 2025
Poland engages RU drones
HK same-sex bill vetoed
To slash 9,000 jobs
Fined for spitting
GA absentee ballot ruling
Kraft to face Wu in Boston
RFK Jr.'s new 'MAHA' report
US producer prices fell
Wins special election in VA
Hill accused by ex-wife
Fired CDC director to testify
Trump targets pharma ads
Gamma ray explosion
Ted Mann dies at 72
反馈