OCR Text |
Show Disease of Salmon. Slneo the researches of tho late Prof. Iluxloy the well-known salmon dlscaso has alwaya been regarded ns caused by tho attack of a fungus. Mr. Humo Patterson bns recently conducted conduct-ed n research for tlio Fishery Board of Scotland nnd has como to tho conclusion con-clusion that tho dlseaso Is duo to Invasion of tbo tissues of tho fish by i a special bacillus, whlcn gains access j through fcowo abrasion or ulceration of tho skin. When tho skin ot tho ' , Ilsh Is lu a healthy stnto tho dlscaso I Is evidently not contracted. Tho ' bacilli remain nllvo lu tho doacl fish, which therefore proo a sourco of Infection. In-fection. They should bo removed nnd burned as soon ns thoy nro obsorved. |