LOLS10在线直播下注

恒峰彩票邀请码_{实时热点} 皇冠体育注册_{实时热点} 大富贵彩票注册_{实时热点} 足球独赢规则_{实时热点} 金皇朝登录_{实时热点} 皇冠app安卓版_{实时热点} 体育在线娱乐_{实时热点} 八方平台app_{实时热点} bet手机版客户端_{实时热点} 捕鱼达人2新版本_{实时热点} ku体育网站_{实时热点} 大富贵彩票登录_{实时热点} 188体育手机投注_{实时热点} 百姓彩票注册开户_{实时热点} 双色球网址app_{实时热点} 乐动体育足球k_{实时热点} 浙江11选五_{实时热点} 龙虎棋牌_{实时热点} 大富贵彩票_{实时热点}

White Spot Disease

What is it?

White spot is a contagious parasitic disease of fish. Caused by Ichyophthirius multifilis, the parasite infects the fish after moving from the bottom of the pond. The parasite attaches itself to the fish, moving under the skin where it feeds on cells and body fluids. Later in the parasites life cycle it moves out of the fish and attaches itself to pond material where it repeatedly divides itself into 1000 more. These then hatch and the process begins again.

LOLS10在线直播下注 The parasite causes damage to fish tissue causing bacterial and fungal infections

Where and When Might it Occur?

The disease affects most fish species but is most common in carps.

The parasites are often introduced through infected fish or pond equipment.

Changes in environmental conditions such as, the introduction of lower temperature water to that of the pond or tank can also cause the release.

Diagnosis

The illness is first detected through behavioural changes in the fish. Fish will often be seen to rub themselves against stones as the parasite enters the skin.

Disorientated swimming close to the surface or staying close to the bottom and tightly folded fins are also observed.

LOLS10在线直播下注 In the later stages, small white cysts will start to appear over the fish, including the gills. These are roughly the size of a grain of salt.

Control/Treatment

To stop the parasites from being released, zinc-free malachite is used in the pond (0.1ppm). Instructions on use must be followed carefully to prevent toxicity.

To prevent the disease it is advised to quarantine new fish for two weeks before introduction.

References

Black's Veterinary Dictionary, 20th Edition (2001) Boden. E, A&C Black, London