检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:杨悦 YANG Yue(Agricultural Development Service Center,Jinghai District,Tianjin City,Tianjin 301600,China)
机构地区:[1]天津市静海区农业发展服务中心,天津301600
出 处:《畜牧兽医科学(电子版)》2021年第19期62-63,共2页Graziery Veterinary Sciences:Electronic Version
摘 要:北方早春季节气温变化幅度较大,早晚温度较低,夜间气候寒冷,肠道疾病是生猪养殖场春季发生流行率较高的一类疾病的总称,具有很强的传染性,并且对年龄较小的猪造成的危险较为严重。该文主要论述天津静海区生猪养殖产业的发展现状,并进一步探讨养殖场春季肠道疾病的发生种类和发病原因,提出相应的防治方案。In northern China,the seasonal temperature changes in early spring are large,the temperature is lower in the morning and evening,the climate is cold at night,and intestinal diseases are a group of diseases with high prevalence in the spring on pig farms,which are highly contagious,and the danger to younger pigs is more serious.This paper mainly discusses the current situation of pig breeding industry in Jinghai district of Tianjin,and further discusses the types and causes of intestinal diseases in breeding farms in spring.
分 类 号:S858.28[农业科学—临床兽医学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3