猪流感和猪感冒的区别与防治

一、猪流感和猪感冒的区别1、猪流感。猪流行性感冒是由猪流感病毒引起的一种呼吸道传染病。临床特征为突然发病,迅速蔓延全群。该病毒主要存在于病猪的呼吸道分泌物中,排出后污染环境、饲饮用具等,病猪、飞沫、空气、老鼠、蚊蝇等都是此病的传播途径。猪流行性感冒发生之初,病     

Passive protection of segmented swine colonic loops against swine dysentery

Swine-ligated loops were used to demonstrate passive protection against swine dysentery. Loops inoculated with immune sera containing complement and with homologous Treponema hyodysenteriae were normal at necropsy. Loops inoculated with heat-inactivated immune sera and heterologous T hyodysenteriae were not protected. Loops inoculated with heat-inactivated immune sera and homologous T hyodysenteriae were partially protected. Positive control loops inoculated with isolate B204 (88%) or B234 (44%) T hyodysenteriae and normal sera developed lesions typical of swine dysentery, whereas negative control loops inoculated with nonexposed sera only were normal.     

Coccidiosis in swine

It is clear that although the clinical history, pathologic lesions, and endogenous stage life cycle of I. suis are well understood, the epidemiology of this parasite is not understood or is misunderstood. Consequently, treatment of individual piglets and prophylactic use of coccidiostats in sows have not been consistently rewarding. The best control at present is achieved through use of extensive sanitation, particularly steam cleaning. The incidence of clinical coccidiosis in piglets continues to be a major component (approximately 20 per cent) in the differential etiology of scours in baby pigs.     

Anaesthesia of swine

Extract

The pig is a difficult animal to anaesthetize under practice conditions. The introduction in the last 5–6 years of several potent, effective drugs has made porcine anaesthesia more practicable. Although the ideal agent has yet to be found, many of the newer agents provide relatively simple, safe and effective chemical restraint of the pig.     

经典型猪瘟(CSF)

该病在一些欧洲国家、南美以及远东呈显现地方流行，在德国、意大利的撒丁岛等欧洲国家，野猪常常带毒呈地方流行。2000年在保加利亚和泰国爆发了猪CSF。1999年阿根廷、哥伦比亚、德国、意大利、卢森堡爆发了该病。撒丁岛在1998年至1999年6月爆发了17起经典型猪瘟。非洲猪瘟在撒丁岛也呈地方性流行。1999年3     

猪传染性胸膜炎与猪瘟混合感染的检疫

近年来,猪瘟的发病率呈上升趋势,病猪临床症状表现为多样化,主要以非典型猪瘟为主.患有非典型猪瘟的病猪不易被发现,易在猪群中散播病毒,使猪体抗病力降低,极易并发其他细菌感染,造成大批死亡.猪传染性胸膜肺炎是由胸膜炎放线杆菌引起猪的一种呼吸道传染病,以呈现胸膜炎症状和病变为特征.当猪瘟与猪传染性胸膜炎混合感染时,猪的发病率、死亡率均很高.