鸡戴眼镜(罩)对防制啄癖现象的效果试验

鸡啄癖现象在群体养鸡中发生较为普遍,严重影响鸡的生长速度、成活率、产蛋量以及商品率,常常给鸡场造成严重损失。湖南省辰溪县瑶乡养殖场舒远良从给抱窝母鸡鼻子穿鸡毛醒抱(传统方法)中受到启示,发明了鸡用眼镜(罩)。试验结果表明,使用鸡用眼镜(罩),啄癖脱毛率下降了6.67%,死亡率下降了5.03%,平均每羽出笼重增加0.08kg,料重比降低12.1%,获得了可观的经济效益。鸡戴眼镜(罩)是一种防制鸡啄癖现象的有效方法。     

对玉米立体种植高产新技术的分析

本文对玉米常见的立体种植技术进行了探讨,希望为农业经营者提供技术服务与支持。     

浅谈城固县元胡产业的生产现状与发展策略

介绍了陕西省城固县元胡产业的发展现状,分析了生产中存在的问题,并针对问题提出了发展策略,认为城固县元胡生产分散、落后应引起足够重视,采取有效措施推进发展,使元胡作为城固继柑桔后的又一个主导产业,为农民增收拓宽新的渠道.     

两种麻醉方法在小儿隐匿阴茎手术中的应用比较

小儿隐匿阴茎显露术是常见的儿科泌尿外科术式之一,而经常采用的静脉麻醉常伴有术后苏醒延迟的缺点。我院对60例拟行隐匿阴茎显露术的患儿分别给予丙泊酚静脉麻醉加单次骶管麻醉和给予丙泊酚、氯胺酮静脉麻醉,比较2者术中血氧饱和度（SpO2）、心率（HR）、呼吸（R）的变化及术后苏醒时间,以探讨最佳的麻醉方法。1对象与方法1.1对象选择美国麻醉医师协会（ASA）Ⅰ～Ⅱ级隐匿阴茎手术患儿60例,均无心、肺、肝、肾疾病。随机分为异丙酚加单次骶管麻醉组（A组）和丙泊酚加氯胺酮静脉麻醉组（B组）各30例,年龄3～5岁。2组患儿年龄、体重等无显著性差异（P＆gt;0.05）。1.2方法术前1d询问病史,体格检查及实验室检查。常规禁食、禁饮6～8h,术前30min肌肉注射阿托品0.01～0.02mg/kg,鲁米那2～3mg/kg,入手术室前开放外周静脉,入手术室后面罩吸氧,静脉给予丙泊酚1.5～2mg/kg。监测呼吸、循环指标变化,适当补充血容量。丙泊酚加单次骶管麻醉组（A组）：待患儿入睡后采取侧卧位行骶管穿刺,穿刺成功1次注入0.25%罗哌卡因,按容量1ml/kg,速度（1～1.5）ml/s缓慢注入。继之持续静脉注射异丙酚3mg/（kg...     

蚯蚓养殖技术

本文主要通过对蚯蚓生物学特性的描述,指导养殖户如何高效养殖,从而获得更大的经济效益.     

山东省乡镇供水现状及2010年发展水平分析

通过对山东省乡镇供水的现状、发展特点及基本经验的总结,预测分析２０１０年山东省乡镇用水量,提出了２０１０年省乡镇供水发展目标、工程建设目标和实现这一目标的措施。     

河南省农产品质量安全标准体系现状及构建

随着我国经济的快速发展和人民生活水平的不断改善,人们对食品的要求日益提高.从过去的数量型到现在的营养型和健康型,农产品的质量安全成为人们关注的焦点.     

分析绿色农业种植技术的推广及应用

我国是农业大国,农业生产过程中的技术应用和农业技术的发展息息相关.传统农业生产种植模式较为粗放,农产品质量安全得不到保证,还会严重污染到周围生态环境,威胁到我国农业的可持续发展.随着时代的迅速发展,绿色种植技术的推广与应用,能充分保证农产品安全和品质,优化了农业生产过程,农业生产效率得到提高,同时,也最大限度地提高了生...     

红豆草耐盐突变体的研究

以普通红豆草子叶为外植体诱导出的愈伤组织置于含1%氯化钠的附加0.5mg/LKT和1mg/L 2,4-D的MS培养基中,连续继代筛选12代之后转入不含氯化钠的分化培养基MS+0.5mg/L 6BA+0.5mg/L IBA中,分化出完整再生植株.经田间栽培观察和染色体鉴定,再生株外部形态特征和染色体数目皆发生显著变异,获得红豆草耐盐突变体.     

不同栽培树形对油橄榄品种果实产量的效应

Longnan City in Gansu Province is the largest base of olive production in China. In the olive orchard locating in Wudu District of Longnan City, thirty trees were sampled each of three cultivars, ‘Leccino’, ‘Chenggu32’, ‘Ezhi8’, with monoconical and vase training system. After planted with density of 5×6 m in 1992, each sample tree was investigated to determine the yield fresh fruit in five different years. The results of survey and analysis showed that there were significant differences of fruit yield among 5 years and 3 cultivars. Different canopy shapes yielded some effect on fruit setting rate and yield of different cultivars in different years. During first fruiting period in the fourth/sixth year after planting, fruit setting rate and yield of ‘Leccino’ with monocone were more 6.7% and 0.15 kg than those with vase and those of ‘Ezhi8’ and ‘Chenggu32’ with vase were more 20%, 10% and 0.18 kg, 0.09 kg than those with monocone. With the increase of tree age, fruit set and yield of ‘Leccino’ and ‘Ezhi8’ with vase was more than those of monocone. In 2011, average yields per tree of ‘Leccino’ and ‘Ezhi8’ with vase were more 13.35 kg and 6.85 kg than those with monocone. And the highest yield per tree of ‘Leccino’ with vase was 75 kg, more 16 kg than that of monocone. Fruit trees with yield over 35 kg of ‘Leccino’ and 25 kg of ‘Ezhi8’ with vase accounted for 80% and 46.7%, more 40% and 30.01% than those of monocone. It was concluded that vase training system would produce higher yield of ‘Leccino’ and ‘Ezhi8’ and its effect and advantages were gradually prominent with increase age. As for ‘Chenggu32’, monocone got a slightly higher yield than that of vase and in 2011 fruit trees with yield over 15 kg accounted for 25%, more 8.34% than vase. The difference between two training system of this cultivar was not obvious.