樱桃谷鸭氟中毒的病例报告     

刘文强  黄秋月 《中国兽药杂志》2006,40(11):53-54

某樱桃谷肉鸭场发生以跛行为主要症状的慢性疾病，经临床检验和实验室化验，证实为慢性氟中毒。采取针对性措施后，该病得到了有效的控制。  相似文献   

Diet supplemented with probiotic for Nile tilapia in polyculture system with marine shrimp     

Jatobá A  Vieira Fdo N  Buglione-Neto CC  Mouriño' JL  Silva BC  Seiftter WQ  Andreatta ER 《Fish physiology and biochemistry》2011,37(4):725-732

The aim of this study was to assess the effect of a probiotic (Lactobacillus plantarum) supplemented diet on Nile tilapia (Oreochromis niloticus) in a polyculture system with marine shrimp (Litopenaeus vannamei) as regards culture performance, hematology, and gut bacterial microbiota. Ten 20-m2 pens were arranged in one earthen pond and stocked with 2 fish (41.9 g) m⁻² and 10 shrimp (2.3 g) m⁻², in total of 40 Nile tilapias and 200 shrimp per experimental unit. Tilapia groups in five of the experimental units were fed a commercial diet supplemented with L. plantarum and the other five with an unsupplemented commercial diet (control). After 12 weeks of culture, the tilapia groups fed the probiotic-supplemented diet presented values 13.6, 7.5, and 7.1% higher for feed efficiency, yield, and final weight, respectively. Viable culturable heterotrophic bacteria counts were reduced, and the number of lactic acid bacteria was increased in the gut of fish and shrimp fed the probiotic-supplemented diet. Hematological analyses showed higher number of thrombocytes and leukocytes in tilapia fed the supplemented diet. L. plantarum utilized in this study colonized the gut of tilapia and shrimp and resulted in reduced number of total bacteria and increased tilapia final weight and feed efficiency.  相似文献