甘肃省家畜棘球蚴病流行情况与防控对策

棘球蚴病又称包虫病,是一种重要的人兽共患寄生虫病,不仅给养殖业造成巨大的经济损失,而且对人体健康带来严重危害。本文论述了棘球蚴病在甘肃省的流行情况,指出了目前棘球蚴病防控工作存在的问题,结合甘肃省实际提出了棘球蚴病防控对策。     

Effect of Lysine Supplement on the Digestion and Metabolism of the Rumen in Small-tail Han Sheep

5 male Small-tail Han sheep with the body weight of 45 kg at 1.5 years old,fitted with permanent rumen fistula,to study of the effect of the supplement of the untreated commercial lysine on the rumen microbiocoenosis,rumen metabolism and whole body metabolism by 5×5 Latin square design (5 groups:control,control with low urea (equal nitrogen),low lysine,control with high urea (equal nitrogen),high lysine).The amounts of lysine-HCl supplement were 0,4.0 and 8.0 g/kg diet (as DM basis) in each group respectively,with two urea supplement control groups of equal amount of nitrogen.The results showed that by supplement of 4.0 and 8.0 g/kg of lysine-HCl diet (as DM basis) respectively,the voluntary intake of dry matter of sheep were increased by 5.5%(P>0.05) and 11.8%(P<0.05) respectively.The total amount of rumen bacteria were increased by 18.9%(P<0.01) and 23.9%(P<0.01) respectively,as the amount of rumen Coccus was increased by 21.2%(P<0.01) and 30.1%(P<0.01) respectively.The amount of rumen big Bacillus was decreased by 16.7%(P<0.05) and 33.3%(P<0.01) respectively.The total VFA of was increased by 9.6%(P<0.05) and 12.2%(P<0.01) respectively,as the butyric acid was increased by 12.8%(P>0.05) and 20.2%(P<0.01) respectively.The apparent digestibility of organic matter was increased by 6.4%(P>0.05) and 10.0%(P<0.05) respectively,the apparent digestibility of crude protein was increased by 7.0%(P>0.05) and 18.3%(P<0.01) respectively;And nitrogen retention was increased by 46.4%(P>0.05) and 110.7%(P<0.01) respectively.However,there was no effect of lysine supplement on the amounts of the rumen protozoa and fungi,and the concentration of rumen ammonia nitrogen.It was concluded that the supplement of untreated commercial lysine to adult sheep would increase the voluntary intake,digestibility,nitrogen retention the rumen microbiocoenosis and the total amount of rumen bacteria,especially the rumen Coccus of adult sheep.The effect of lysine supplement could not be replaced by urea supplement completely.     

普通钢架大棚甜瓜嫁接砧木品种筛选试验

在普通钢架大棚内,以实生苗为对照,对引进的5个甜瓜砧木品种进行甜瓜嫁接比较试验。试验结果表明,5个砧木品种嫁接苗成活率均在90%以上,其植株和瓜的生长特性、产量和品质均没有显著差异,与实生苗之间亦无显著差异,综合性状表现较好的砧木品种为日本青秀和亮丽王。     

检测马疱疹病毒4型抗体间接ELISA方法的建立及应用简

In order to establish an indirect ELISA method for detection of equine herpesviruses type 4 （EHV4） antibody, the glycoprotein G （gG） protein with specific epitope worked as a detection antigen. After optimizing conditions, the indirect ELISA method was developed successfully，specificity and repeatability tests were determined. The result was that the EHV4 gG only reacted with antibodies against EHV4;but not with antibodies against EHV1; both the intro-batch and inter-batch variation coefficiencies were lower than 10%.Concordance of the indirect ELISA relative to commercial EHV1/4 antibody kit was above 90%.The results indicated that the indirect ELISA method could be used for the detection and epidemiological surveys of EHV4 infection.     

家蚕微粒子病检验的质量管理

微粒子病检验最常用的手段是光学显微镜检验技术,通过对全面质量管理中影响家蚕微粒子病检验和镜检结果的主要因素和关键环节进行分析和总结,以期进一步提高家蚕微粒子病检验水平和管理能力。     

西兰花品种比较试验

本试验引进了沪绿68、沪绿88和沪绿118共3个西兰花新品种,与当地主栽品种——耐寒优秀进行比较试验,试图筛选出适应当地种植的西兰花新品种。试验结果表明,沪绿68花球紧实度不高且蕾粒容易掉;沪绿118植株侧枝很多且花球有空心;沪绿88品种长势好、商品性好,适宜在如东地区种植。     

湖南省R&D投入产出效率研究

以湖南省R&D投入产出活动为研究对象，采用数据包络分析法(DEA)的BCC模型，结合全国30个省市R&D投入产出数据，对2013年湖南省R&D投入产出效率进行比较分析，并根据实证结果提出相关对策及建议.     

不同种植密度对超甜玉米产量及相关性状的影响

设置5个水平的种植密度,研究了不同种植密度对甜玉米品种‘夏王'产量和主要农艺性状的影响。结果表明:在不同的种植密度下,甜玉米‘夏王'的产量和果穗性状都有明显的差异;玉米产量随着种植密度的增加而增加,增加到一定幅度后又随着密度的增加而下降;随着种植密度的增大,植株果穗长度、果穗粗度、行粒数、正品果穗率和单穗重量均逐渐下降;综合性状表现,‘夏王'在上海地区春播适宜的播种密度为4.50万—4.95万株/hm~2,从鲜穗商品性及种植效益考虑,最佳种植密度为4.50万株/hm~2。