Clinical evaluation of the CA530-VET hematology analyzer for use in veterinary practice

BACKGROUND: The CA530-VET is a completely automated impedance cell hematology analyzer, which yields a 16-parameter blood count including a 3-part leukocyte differential. OBJECTIVES: The aim of this study was to examine the operational potential of the CA530-VET and its value for use in veterinary practice. METHODS: The analyzer was tested for blood carry-over, precision, and accuracy. Comparison methods included the CELL-DYN 3500, microhematocrit centrifugation, manual platelet (PLT) counting for feline and equine species, and a 100-cell manual WBC differential. Blood samples for comparison of the methods were obtained from 242 dogs, 166 cats, and 144 horses. RESULTS: The carry-over ratio (K) was 0.28% for RBC, 0.59% for PLT, 0.32% for WBC, and 0.18% for hemoglobin (HGB) concentration. Coefficients of variation (CVs) for within-batch precision and duplicate measurement of blood samples were clearly within the required limits, except for duplicate platelet counts in cats (8.7%) and horses (9.5%). The WBC count was in excellent agreement for dogs and horses and RBC count was in excellent agreement for horses. The accuracy of feline WBC counts was not acceptable, with the exception of values at the high end of the range. RBC counts in dogs and cats, and HGB concentration and MCV in all 3 species were sufficiently accurate. The CA530-VET HCT results were in excellent agreement with microhematocrit results in horses but exceeded the maximum allowed inaccuracy for cats and dogs. In all species, PLT counts established mechanically and manually were not in adequate agreement. Large differences were found between the CA530-VET and the manual differential percentage for lymphocytes and "mid-sized cells" (monocytes and basophilic granulocytes). CONCLUSIONS: The CA530-VET can be considered useful for routine canine, feline, and equine blood cell analyses. It should not be considered accurate, however, for PLT counts, feline total WBC counts in the subnormal and normal range, and leukocyte differentials, except for granulocytes.     

杂交稻新品种秋优125在浦城试种表现及高产栽培技术

秋优125系南平市农业科学研究所用秋香A与南恢125配组育成的杂交稻新品种。浦城县于2012—2013年引进种植,表现熟期适中、高产稳产、熟期转色好、米质较优、抗病性较强。介绍了该品种在浦城县试种表现及高产栽培技术。     

低氧气调新组合处理苹果贮后效应的生理基础探讨

以新红星苹果为试材 ,探讨苹果低氧气调新组合贮后一段时间内不发生虎皮病的生理机制。结果表明 ,气调新组合处理 4个月的苹果 ,贮藏效果好 ,果皮α -法尼烯和共轭三烯含量较低 ,在此后 2个月的冷藏期中 ,果皮α -法尼烯和共轭三烯含量较高 ,但未发现虎皮病果。气调新组合处理的苹果在贮后一段时间不发生虎皮病 ,与气调处理期间其果皮α -法尼烯和共轭三烯的形成受到显著抑制、共轭三烯的形成高峰延缓至贮后一段时间出现有关     

The Relationship Between Resistance to Controlled Atmosphere and Insecticides of Liposcelis bostrychophila Badonnel (Psocoptera:Liposcelididae)

The cross resistance of four resistant strains of Liposcelis bostrychophila Badonnel, an important stored-product insect pest, was investigated. These four strains included the HCO2-R (hypercarbia-resistant strain), HCLO-R (hypoxia and hypercarbia resistant strain),DDVP-R (DDVP-resistant strain) and PH3-R (PH3-resistant strain). The results indicated that there were cross-resistances between CA and insecticides, and the quantities of the cross-resistance were different. The cross-resistance factor (RF) of HCO2-R to hypoxia and hypercarbia was 3.2458, whilst, that of HCLO-R to hypercarbia was 1.8280. The RF of DDVP-R to PH3 was 3.9614, whilst, that of PH3-R to DDVP was 2.7852. The RF values of DDVPR and PH3-R to hypercarbia were 1.3550 and 1.1816, respectively. However, the RF of HCO2-R to DDVP was 2.1372. There also was a low cross-resistance between DDVP-R and HCO2-R. The RF of HCO2-R to PH3 was 3.3698. This sugqested that the insects resistant to high CO2concentration atmosphere would develop significant resistance to PH3. However, the insects resistant to PH3 remain sensitive to hypercarbia atmosphere. Both DDVP-R and PH3-R developed resistance to high CO2 treatment. There was a low cross-resistance between DDVP-R and HCLO-R. The insects resistant to hypoxia and hypercarbia were very sensitive to DDVP. There also was cross-resistance between HCLO-R and PH3-R, but the resistance of PH3-R to hypoxia and hypercarbia was lower than that of HCLO-R to PH3. The difference of the overlapping and separate values indicated that there were differences in the intercross-resistance of four resistant strains.     

Effects of alpha- and theta-cypermethrin insecticide on transient outward potassium current in rat hippocampal CA3 neurons

The effects of two cypermethrin insecticides, alpha-cypermethrin and theta-cypermethrin on the transient outward potassium (I_A) channels in freshly dissociated hippocampal CA3 neurons of rat, were studied using whole-cell patch clamp technique. The results indicate that alpha-cypermethrin increased the amplitude of I_A and theta-cypermethrin decreased the amplitude of I_A, and both of them shifted steady activation curve of I_A towards negative potential. Theta-cypermethrin contributed in the inactivation of I_A. Alpha-cypermethrin prolonged the time constants for the recovery from inactivation kinetics of I_A. These results imply that transient outward potassium (I_A) channels are the target of cypermethrin, which may explain the mechanism of toxical effects of cypermethrin on mammalian animals.     

CA数据库收录《长江大学学报（自然科学版）》论文的统计分析

利用CA网络版（SciFinder Scholar）统计分析了《长江大学学报（自然科学版）》的摘录情况。统计截止2009年1月底,《长江大学学报（自然科学版）》（ISSN1673-1409,CODEN：CDXZBW）从2007年入选CA数据库以来,已经有50篇论文被CA摘录,其中2007年35篇,2008年的第1～2期被摘录15篇。50篇论文涉及114位作者,其中梅平（MEI Ping）5篇,名列第一;陈武（CHEN Wu）、李克华（LIKe-hua）、尹先清（YIN Xian-qing）各4篇,为并列第二;艾俊哲（AI Jun-zhe）和陈海燕（CHEN Hai-yan）各3篇,为并列第三。50篇论文中,82％的摘录论文是合作成果,而且主要以2人和3人合作为主,2人或者3人合作论文占被摘录论文总数的56％。被CA摘录的50篇论文来自于19家机构,其中有29篇是来自长江大学。     

华南地区浅圆仓玉米氮气气调储藏试验研究

华南地区浅圆仓储藏玉米存在害虫危害、局部发热、脂肪酸值变化快的问题,2008年采用氮气气调控温储藏,应用试验结果表明,在度夏期间长期维持氮气浓度97%以上的情况下,害虫防治效果较好、品质保持效果良好、粮食微生物受到较好的抑制、局部发热得到了明显的控制,不仅运行成本与采用谷物冷却技术相当,而且降低了保管员的劳动强度,避免了保管员接触储粮化学药剂,综合效益显著。     

气调贮藏对冬枣品质的影响

研究了冬枣果实在低温（-1～-2℃）条件下,8个不同体积分数的气体成分（15%O2＋0%CO2、10%O2＋0%CO2、5%O2＋0%CO2、2%O2＋0%CO2、2%O2＋2%CO2、2%O2＋4%CO2、2%O2＋8%CO2、2%O2＋10%CO2）和1个对照（21%O2＋0%CO2）处理对冬枣果实呼吸、果肉相对硬度、组织相对电导率、维生素C含量以及贮藏效果的影响。研究结果表明,适当的低O2可降低冬枣果实的呼吸强度、抑制果肉硬度的下降、减慢组织相对电导率的升高、延缓维生素C的降解、维持冬枣果实良好的贮藏品质 而贮藏环境中的CO2则会促进果实呼吸,导致组织相对电导率升高,促进维生素C的降解,加速了冬枣果实的软化,鲜食价值迅速丧失。2%O2＋0%CO2的气体条件对冬枣贮藏最为有利。     

基于土地适宜性的耕地规划CA模拟及验证

为探究科学合理的耕地规划方法,以河南省兰考县为例,从影响耕地规划的适宜性、限制性及竞争性3个方面对土地适宜性进行分析,并运用CA(cellular automata)模拟系统,模拟2020年兰考县指标控制下的耕地规划情况。结果表明,兰考县2020年耕地面积为76 411.32 hm~2,其中因城镇发展导致耕地面积减少226.44 hm~2,村庄、内陆滩涂及果园等其他土地转化为耕地的面积为8 227.13 hm~2。结合耕地适宜性评价结果对比发现,质量上模拟规划的耕地高于现行的土地利用规划中的耕地,空间分布上同时避开城镇发展、生态保护及其他因素的影响,具有稳定性。该研究为管理者制定耕地规划提供重要的方法参考。     

广适性高产稳产杂交水稻新组合Ⅱ优125

Ⅱ优125是福建省南平市农科所用Ⅱ-32A与恢复系南恢125配组育成的杂交中晚籼组合,具有适应性广、高产、稳产、增产潜力大等特性,适宜在长江中下游区域作一季中稻栽培,于2006年、2008年分别通过了福建省和国家农作物品种审定委员会审定。