Nested=falseTableType=agri_techVisitBeginUrl=http://fishery.aweb.com.cn/showmore.jsp?lsdate=&pn=1&typeid=210&keyword=VisitKey=pnStartPageNum=1EndPageNum=1incPageNum=1CollectedBeginUrl=http://fishery.aweb.com.cn/news/CollectedKey=news/IdStrategy=org.indigo.pages.AppendStrategyIdFront=)</font></td><tr white valign=top><td style='padding:0 2 0 0'>·</td><td width=100%><a href='/news/IdBack='Filter=falseRuleCount=2Front1=<tr><td align="center" style="line-height:200% ">Back1=<div align="center">Name1=標題EngName1=techtitleFront2=<table width="95%"  border="0" align="center" cellpadding="0" cellspacing="0"><tr><td>Back2=</P>Name2=內(nèi)容EngName2=techcontentDefaultEngName1=techtypeDefaultValue1=03DefaultEngName2=techpublisherDefaultValue2=adminLastItem=<h2>內(nèi)外結合防止春季魚類發(fā)病</h2>`<span class="blank"><P>　　越冬后的漁池，魚類體質(zhì)普遍下降，抗病能力也隨之降低，進入春季后水溫逐漸上升，魚類開始慢慢恢復活力，并逐漸開始攝食，同時各種能使魚體致病的細菌、寄生蟲也CollectedIdSplit=LastItemAvailable=true