检索结果-南通市图书馆

Influence of Pr.biotics on the gr.wth and.d.gestive Enzyme Activity of White Pacific Shr.mp (Litopenaeus vannamei)

Jour.al of Ocean Univer.ity of China 2008年第2期7卷 215-218页

作者： gómez r. geovanny d. MA Shen College of Fisher.es Ocean University of China College of Fisher.es Ocean University of China Qingdao 266003 P. R. China

The influence of Bacillus pr.biotics on the d.gestive enzyme activity and.the gr.wth of Litopenaeus vannamei wer. d.- ter.ined.in this stud.. The shr.mp was tr.ated.with five per.entages (1.5, 3.0, 4.5, 6.0 and.7.5) of pr.biotics (Bacillus spp.) supple- mented.to the feed.and.cultur.d.for.45 d. The gr.wth measur.d.as the weight gain at the end.of cultur.ng was significantly (Pgher.in pr.biotic-tr.ated.shr.mps than that of the contr.l (without r.ceiving pr.biotics). Activities of pr.tease and.amylase, two d.gestive enzymes of the mid.ut gland.and.the intestine wer. significantly (Pgher.in pr.biotic-tr.ated.shr.mp than in the contr.l.

关键词： Bacillus d.gestive enzymes gr.wth mid.ut gland pr.biotic

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Pr.biotics as Contr.l Agents in Aquacultur.

引用

Jour.al of Ocean Univer.ity of China 2007年第1期6卷 76-79页

作者： gómez r. geovanny d.Balcázar.José Luis Mar.cultur. r.sear.h Labor.tor. Ocean University of China Qingdao 266003 P. R.China Labor.tor. of Fish Pathology Faculty of Veterinary Medicine University of Zaragoza C /. Miguel Servet 177 Zaragoza 50013 Spain

Infectious d.seases constitute a limiting factor.in the d.velopment of the aquacultur. pr.d.ction, and.contr.l has solely concentr.ted.on the use of antibiotics. However. the massive use of antibiotics for.the contr.l of d.seases has been questioned.by acquisition of antibiotic r.sistance and.the need.of alter.ative is of pr.me impor.ance. Pr.biotics, live micr.or.anisms ad.inister.d.in ad.quate amounts that confer.a healthy effect on the host, ar. emer.ing as significant micr.bial food.supplements in the field.of pr.phylaxis.

关键词： aquacultur. d.seases pr.vention pr.biotics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Use of Selected.Pr.biotics as Supplement for.Food.to Enhance the Shr.mp Cultur. of White Pacific Shr.mp (Litopenaeus Vannamei)

Use of Selected Probiotics as Supplement for Food to Enhance...

引用

作者： gomez r.os geovanny d.nilo（久瓦内）中国海洋大学

学位级别：硕士

It has been pr.ved.that Pr.biotics applied.d.r.ctly to the water.or.ad.ed.as supplement food.for.shr.mp, could.positively influence on sur.ival and.gr.wth r.te. The possible mod. of actions could.includ.: inhibition of potential pathogens by competing for.nutr.ents and.space;alter.tions of micr.bial metabolism by stimulating the host immunity and.appetite, impr.ving nutr.tional value by pr.d.cing vitamins and.enhancing enzymes to br.akd.wn of ind.gestible components. However. the mod. of action in vitr. and.in vivo of the pr.biotics is r.r.ly investigated.The incr.ased.shr.mp pr.d.ction using intensive systems has been accompanied.with bacter.al r.sistance to antibiotics. Pr.biotics, in this content have become an alter.ative use for.shr.mp aquacultur.. In the pr.sent stud., two commer.ial pr.biotics (Ped.ococus acid.lactis and.a mixtur. of Bacillus spp.) wer. supplemented.to feed.at thr.e d.ffer.nt levels, i.e. 0.5, 1.5, and.2.5 %, to assess the sur.ival, gr.wth and.ener.y bud.et of juveniles shr.mps (Litopenaeus vannamei). Though no mar.ed.alter.tions obser.ed.in the mor.hology of shr.mps, significant d.ffer.nces (Pr.ival and.gr.wth wer. found.between tr.atment gr.ups and.the contr.l at the end.of 32-d.y feed.ng tr.al. Ener.y consumption in metabolism (r. incr.ased.in a d.se-d.pend.nt manner.for.P. acid.lactis, while d.cr.ased.for.Bacillus spp. Notably, the contr.l showed.the highest ener.y consumption in metabolism. The excr.tion and.the exuviae showed.significant d.ffer.nces between tr.atments and.the contr.l (Pr.tes pr.d.cts with health benefit to the host. In or.er.to stud. the influence of commer.ial Bacillus pr.biotic on the d.gestive enzyme activity and.the gr.wth of Litopenaeus vannamei, shr.mp wer. tr.ated.with five per.entages (1.5, 3.0, 4.5, 6.0 and.7.5) of pr.biotics (Bacillus spp.) supplemented.to the feed.and.cultur.d.for.45 d.ys. At the end.of 45 d. the gr.wth measur.d.as weight gain was significantly (P<0.0

关键词： Bacillus spp. ener.y bud.et d.gestive enzymes gr.wth immune system Litopenaeus vannamei pr.biotic sur.ival

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：