基于教师能力提升的"三赛"制度建设与探究

教学技能大赛、微课比赛、青年教师能力大赛(简称青教赛)是提升教师能力的有效途径.建立完善的高校三赛制度,高校教师教学能力才能全面提升.文章通过对教师能力提升的教学技能大赛、微课比赛、青教赛的三赛制度进行建设与探究,对三赛进行了现状分析和问题分析,阐明了构建三赛制度的必要性,从当前高校教师教学能力培养制度...     

电气专业"岗课赛证"融通的双循环人才培养模式探究

文章从技术岗位复合型人才需求出发,以职业核心素养为载体,探索实践岗课赛证双向循环的人才培养模式,通过与企业组建团队,共同制定校企竞赛方案,共享资源,共编教材,编制了电气自动化技术专业岗课赛证实施性人才培养方案,优化职业核心素养下人才培质量提升的实施路径,开展教学改革实践.     

喹赛多对断奶仔猪的生长性能和胴体品质的影响

选择35日龄体重相近的二元杂交(长大)断奶去势公猪100头,随机分为5组,每组5个重复(栏),每个重复4头,在相同条件下进行饲养试验和屠宰试验。预饲期7d,试验期40d。试验日粮分别在基础日粮中添加0、50mg/kg喹乙醇、25、50和100mg/kg喹赛多,研究喹赛多对断奶仔猪生长性能和胴体品质的影响。结果表明:在日粮中添加25、50、100mg/kg喹赛多可以提高仔猪的平均日增重,降低料肉比和腹泻率;其中,平均日增重分别比对照组提高5.4%、9.9%和24.3%,料肉比比对照组降低9.3%、13.5%和14.0%,腹泻率分别比对照组降低36.4%、72.7%和74.8%;在仔猪日粮中添加100mg/kg喹赛多可以提高仔猪屠宰率和瘦肉率,提高眼肌面积,降低胴体肥肉率。在断奶仔猪日粮中喹赛多的适宜添加量为50～100mg/kg。     

“以赛促学 以赛促教”对软件专业创新应用型人才培养模式的探索与研究

本文从独立学院软件专业教学与学生特点的现状进行分析,通过组织参加的各类软件设计大赛为背景,阐述了以赛促学、以赛促教教学模式的内涵,研究与详细阐明软件专业以赛促学、以赛促教创新应用型人才培养模式、竞赛方案、竞赛实施机制。     

爱欲与渴求——男性作家塑造女性形象的审美取向

在人类文明发展的历史进程中,两性关系不仅在现实生活中引起了人们的关注,在文学作品中亦如此。尤其在以男性话语为中心的社会现实中,男性作家与其塑造的女性形象之间的微妙关系成为了值得我们深入探讨的学术议题。这些议题多以两性对立冲突的立场为出发点,而实际上,文学艺术中男性与女性作为人类生存的主体应该存在和谐美好的一面。在男性主权社会,男性作家在塑造女性形象的审美过程中所体现的生理、精神方面的融通更能体现这一和谐特质。     

喹赛多对肉用齐卡兔生产性能的影响

选择体重基本一致的30日龄齐卡兔60只(公母各半),随机分成5组,即A组(对照组)、B组、C组、D组和E组,每组3个重复,每重复4只,单笼饲养。其中对照组饲喂基础日粮,其余各组分别在基础日粮中添加喹赛多50mg/kg、喹赛多100mg/kg、喹乙醇50mg/kg、喹乙醇100mg/kg,进行为期60d的饲养试验。结果表明:各组添加剂均能显著提高肉兔日增重(P<0.05);100mg/kg喹赛多组与对照组日耗料量相当,而其它各组日耗料量则显著低于对照组(P<0.05);各试验组与对照组相比,均能显著降低料重比(P<0.05),但各试验组间差异不显著(P>0.05);各组添加剂均能降低肉兔腹泻率。综合评价,喹赛多组优于喹乙醇组,适宜添加量为100mg/kg。     

马立克疫苗添加“澳赛康”及稀释液后对蚀斑生长的影响试验

为评价澳赛康(注射用头孢噻呋钠)及其稀释液对马立克疫苗效力的影响,以马立克疫苗蚀斑生成单位为指标,在体外通过马立克氏活疫苗与澳赛康及其稀释液分别作用0、30、60、90min等4个时间点后接种到鸡胚成纤维细胞中孵育,测定疫苗蚀斑形成单位的变化。结果表明,添加药物后的马立克疫苗在各个时间点蚀斑数与空白组之间没有显著性差异(P>0.05),澳赛康及其稀释液对疫苗效力无影响。本试验为澳赛康及其稀释液和马立克疫苗在临床上的联用提供了实际依据。     

饲料中添加喹赛多对生长猪生产性能的影响

抗菌药物作为饲料添加剂在养猪生产中使用已有近40年的历史,试验证明,仔猪和生长猪日粮中添加抗菌药物能提高日增重,改善饲料利用率[2,6]。一般认为,饲喂抗菌药物能抑制病原微     

亚中毒剂量"喹胺醇"对大鼠组织形态学和饲料消耗的影响

喹胺醇(Kuianchun)是一种新型药物饲料添加剂,其母体结构为喹噁啉-1,4-二氧化物,和喹烯酮、喹赛多等一样均属结构创新类药物,由中国农业科学院兰州畜牧与兽医研究所研制而成.     

营养液浓度和基质配比对牛至扦插繁殖的影响

唇形科多年生植物牛至(Origanum vulgare)扦插繁殖的主要技术难题是如何改善牛至根系生长情况和提高壮苗率,本研究以希腊牛至(O.vulgare ssp.hirtum)为材料,探究不同营养液浓度和基质配比对其扦插繁殖的影响.结果表明,随着营养液中大量元素浓度的增加,牛至插穗的鲜重、分枝、株高以及总根长、根表面...     

中国古代养兔发展史

从化石和历史文献角度概述了我国古今存在的兔种,分析了我国家兔起源驯化过程,并通过历代对兔的记载纵观我国养兔发展,为我国家兔起源及驯化历史提供一定参考依据。     

基于二语写作过程的非英语专业写作主体类型研究

长期以来，我国在二语写作研究中很少有对二语写作主体的研究。笔者旨在调研非英语专业写作主体在进行命题作文的写作过程，探索英语写作主体的类型。通过开放式问卷调查与分析，发现在写作过程中，写作主体在计划、构思、表达、检查等方面表现出很大的差异，根据写作过程的显著特点可以分为两大类型（共八种亚类型），从而充实了国内对二语写作主体的研究；同时有利于英语教师对写作主体进行针对性的指导和调节，为实现二语写作个性化教学提供参考依据。     

海东鸡与罗曼鸡蛋品质指标的对比分析

测定了青海海东鸡蛋（41枚）和罗曼鸡蛋（31枚）的蛋重、蛋形指数、蛋的密度、蛋壳厚度、蛋壳重量、哈氏单位、浓蛋白高度、蛋黄比率和血斑肉斑率等9项蛋品质指标。结果表明：两品种鸡蛋的密度、蛋形指数、蛋壳厚度、和血斑肉斑率无显著差异（P〉0．05）;罗曼鸡蛋的蛋重显著高于海东鸡,海东鸡蛋的浓蛋白高度、哈氏单位、蛋黄比率均显著高于罗曼鸡（P〈0．05）。     

Development of the activities of pancreatic and caecal enzymes in White Roman goslings

1. This study was to investigate the development of the activities of pancreatic and caecal enzymes in White Roman goslings from hatching to 28 d of age. 2. A total of 80 1-d-old goslings were used. At hatching, 3 and 7 d of age, 16 goslings (8 males and 8 females) were used. At 11, 14, 21 and 28 d of age, 8 goslings, 4 males and 4 females were selected. The activities of amylase, lipase, trypsin and chymotrypsin in each segment of the small intestine (duodenum, jejunum, ileum) and their contents and the activity of cellulase in the caecal contents were measured. 3. The specific activity (SA) of amylase in the duodenal mucosa and contents increased significantly both from 11 to 14 and 14 to 21 d of age and declined after 28 d of age. In the jejunum and ileum, there was a significant peak in the SA of amylase in the mucosa in goslings from 7 to 21 d of age. On average, the SA of lipase of mucosa and content in the small intestine was initially low but gradually increased from 14 to 21 and from 21 to 28 d of age. 4. The SA of trypsin in the contents of the duodenum and the jejunum increased both from 7 to 11 and 11 to 14 d of age and there was high activity in the ileal contents from 14 to 21 d of age. From 3 to 14 d of age, the SA of chymotrypsin in the duodenal mucosa significantly increased and peaked. There was a significant peak at 11 d of age in the SA of chymotrypsin in the duodenal or jejunal contents and in the ileal contents at 7 d. The SA of cellulase in the caecal contents increased linearly with age, reaching a plateau at 28 d of age. 5. The rate of activity development varied from hatching to 28 d of age. However, the mean SA of amylase and lipase of intestinal contents reached a peak at 21 d, trypsin and chymotrypsin at 11 d and cellulase at 28 d of age, respectively. The quantitative changes in SA of cellulase, amylase, lipase, trypsin and chymotrypsin increased by about 4-, 3-, 5-, 2- and 3-fold, respectively, in the intestinal content of goslings. Thus, development of proteases in the intestine of goslings peaked more rapidly than amylase, lipase and cellulase during the first 4 weeks.     

皖西白鹅与罗曼鹅屠宰性能及肉品质分析

研究旨在通过比较我国地方品种皖西白鹅与国外引进品种罗曼鹅屠宰性能和肉品质的差异,为不同鹅种的保护利用提供参考资料。试验选取同批饲养的70日龄皖西白鹅和罗曼鹅,分别测定屠宰性能并分析肌肉品质。结果显示:①70日龄罗曼鹅体重、屠体重、半净膛重、全净膛重等均高于皖西白鹅(P>0.05),腿肌重、腹脂重、肠脂重均显著高于皖西白鹅(P<0.05);②罗曼鹅翅重、心重和肌胃重均显著高于皖西白鹅(P<0.05),但肝重显著低于皖西白鹅(P<0.05),脚掌重低于皖西白鹅(P>0.05);③罗曼鹅胸肌亮度显著高于皖西白鹅(P<0.05),肉色鲜艳,红度显著低于皖西白鹅(P<0.05),黄度值、pH值和滴水损失率均与皖西白鹅差异不明显。研究结果表明:皖西白鹅在腿肌、腹脂和肠脂,以及翅膀、心和肌胃发育方面,与罗曼鹅存在显著差异,胸肌肉色红度更高。     

Prevalence of lameness and of associated claw disorders in Greek dairy cattle industry

The aim of this study was to assess the prevalence of lameness as well as the prevalence of claw–horn disruptions, abnormal claw shape and dermatitis in lame cows in Greek dairy farms and to evaluate their risk factors. Forty dairy farms were visited twice, during winter and during summer, and the lameness of milking cows was scored using a 5-point scale. In total 760 cows were lame (lameness score ≥ 3) and were further examined to identify macroscopically the claw disorders. The herd size, the trimming and footbathing frequency, the floor surface, the cleanness of the herd, the scraping frequency and the disinfectant used in the footbaths were recorded. The mean lameness prevalence was 18.7% and that of claw disorders observed in the lame cows was 75.4% for abnormal claw shape, 30.2% for dermatitis and 30.6% for claw–horn disruptions. Large herd size and the absence or only once per year trimming were associated with increased risk for the presence of lameness.     

Seroprevalence and antibiotic sensitivity of serotypes of Salmonella enterica in Greek pig herds

Blood samples were taken from 50 pigs in each of 59 farrow-to-finish production herds and from 40 pigs in each of four of five registered multiplying herds. Samples of feed and faeces were also collected from 17 of the production herds and from the four multiplying herds. The sera were tested for antibodies to Salmonella enterica by the Danish mix-ELISA, and the organisms were isolated, serotyped and sensitivity tested by standard techniques. The average within-herd seroprevalence was 3.4 per cent and at least one pig tested seropositive in 21 of the 59 herds. In the multiplying herds, only a single seroreactor was detected. Salmonellae were isolated from only five of 95 feed samples, from two of the 17 herds sampled, Salmonella tennessee in four of five samples from one herd and an untypable strain in one of five samples from another. Four infected faecal samples were detected in four herds; they harboured Salmonella typhimurium, Salmonella bredeney or Salmonella london. No salmonellae were isolated from the samples of feed and faeces taken from the multiplying herds. The S london and S typhimurium had a low sensitivity to streptomycin, kanamycin and neomycin, and the S typhimurium also had low sensitivity to amoxycillin, ticarcillin, piperacillin, amoxycillin + clavulanic acid, cefalotin and cefoperazone. The other isolates were sensitive to all the antimicrobial agents tested.     

青藏高原地方鸡种——海东鸡与商品鸡蛋品质分析比较

作者对青藏高原地方鸡种—海东鸡与商品新罗曼鸡的蛋品质及蛋中营养成分进行测定并分析比较。结果表明,海东鸡的蛋重、蛋壳重、蛋白重及蛋白重/蛋重极显著低于新罗曼鸡(P0.01);而蛋形指数和蛋黄重/蛋重极显著高于新罗曼鸡(P0.01);蛋壳厚度和蛋壳重/蛋重海东鸡显著高于新罗曼鸡,且海东鸡的哈氏单位显著高于新罗曼鸡(P0.05);蛋黄和蛋壳强度重二者无显著差异。海东鸡蛋全蛋粗蛋白质含量比新罗曼鸡蛋低21.3%,达到极显著水平(P0.01);粗脂肪含量比新罗曼鸡高18.1%,达到显著水平(P0.05)。