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长白专门化品系W52系的选育

华南农业大学学报 2019年第S01期40卷 35-39页

作者：刘珍云王青来向有为王建兰李娅兰刘敬顺蔡更元武亮吴珍芳广东温氏种猪科技有限公司广东新兴527400 国家生猪种业工程技术研究中心/华南农业大学动物科学学院广东广州510642

2001年从法国伊彼得种猪优选公司引进长白公猪19头、母猪78头,2002年从北京养猪育种中心引进法系长白公猪8头、母猪210头,组建基础群,采用开放式继代选育法,经过14年选育得到W52系,并培育成具有生长速度快、体型高长、产仔数高的特点,... 详细信息

2001年从法国伊彼得种猪优选公司引进长白公猪19头、母猪78头,2002年从北京养猪育种中心引进法系长白公猪8头、母猪210头,组建基础群,采用开放式继代选育法,经过14年选育得到W52系,并培育成具有生长速度快、体型高长、产仔数高的特点,适合作为大体重上市配套肉猪的母系父本使用。

关键词：专门化品系 W52系选育

乳牛钙、磷代谢障碍性疾病的诊断:用X线拍片法作掌骨皮髓宽度比测定

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西南民族学院学报（畜牧兽医版） 1989年第2期15卷 43-48页

作者：丁衡君廖玉辉张永乐李固龙四川农业大学雅安市乳牛场

对两组临床健康的黑白花乳牛35头(1组19头、2组16头)作右掌骨侧位X线拍片,测其掌骨中部皮髓宽度比。其结果是,1、2两组皮髓宽度比平均值分别为1.56±0.174和1.0257±0.1556。两组之间相差0.1303,经t检验差异显著(P<0.05)。2组16头乳牛中... 详细信息

对两组临床健康的黑白花乳牛35头(1组19头、2组16头)作右掌骨侧位X线拍片,测其掌骨中部皮髓宽度比。其结果是,1、2两组皮髓宽度比平均值分别为1.56±0.174和1.0257±0.1556。两组之间相差0.1303,经t检验差异显著(P<0.05)。2组16头乳牛中有6头乳牛的皮髓宽度比低于1.0,占2组乳牛总数的37.5％。追寻其原因;主要是两组饲喂的日粮有所不同,特别是钙、磷比例差异极大。1组钙、磷比例为1.5:1,二组为1:12。据此,作者认为用X线拍片法作掌骨皮髓宽度比的测定,不仅能作为诊断钙、磷代谢障碍性疾病的一个可靠指标,且可作为生产上预测钙、磷代谢障碍的手段。

关键词：奶牛钙磷代谢障碍诊断牛

中华眼镜蛇毒致广西巴马小型猪坏死组织渗出液中的蛇毒成分分析

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广西医科大学学报 2024年第8期41卷 1101-1110页

作者：肖曼琪关哲哲胡少聪李亚兰张子彦蒋宁静张学荣廖明广西医科大学生命科学研究院南宁530021 广西医科大学基础医学院南宁530021

目的:探究中华眼镜蛇毒致广西巴马小型猪坏死组织渗出液中的蛇毒成分及其蛋白表达的动态变化。方法:给予广西巴马小型猪注射中华眼镜蛇毒,构建蛇伤中毒的局部组织坏死模型,在注射毒素后的6 h、12 h、24 h、36 h和48 h取小猪坏死组织的... 详细信息

目的:探究中华眼镜蛇毒致广西巴马小型猪坏死组织渗出液中的蛇毒成分及其蛋白表达的动态变化。方法:给予广西巴马小型猪注射中华眼镜蛇毒,构建蛇伤中毒的局部组织坏死模型,在注射毒素后的6 h、12 h、24 h、36 h和48 h取小猪坏死组织的渗出液,采用无标记的蛋白质组学技术鉴定分析渗出液中蛇毒蛋白质组成及动态变化,通过对所鉴定出的蛋白进行KEGG及GO通路富集分析,以深入了解蛇毒蛋白相关的生物学功能。结果:通过蛇伤中毒后广西巴马小型猪的生物学行为、局部肌肉组织的病理结果、注射部位的伤口变化来评判动物模型,广西巴马小型猪中毒后出现呼吸急促、肌肉组织坏死、局部伤口溃烂等症状,均符合临床特征的实际情况,表明成功构建了中华眼镜蛇毒导致局部组织坏死的广西巴马小型猪模型。在广西巴马小型猪的局部组织坏死渗出液中鉴定到40种蛇毒蛋白质,涵盖三指毒素、磷脂酶A2、富含半胱氨酸分泌蛋白、蛇毒金属蛋白酶、核苷酸焦磷酸/磷酸二酯酶等蛇毒蛋白家族,并呈现出动态性数量变化。结论:在中华眼镜蛇毒致广西巴马小型猪过程中,不同时间段的组织渗出液中均鉴定出多种三指毒素、磷脂酶A2等蛇毒蛋白,其可能在局部组织坏死中发挥着重要作用。

关键词：中华眼镜蛇毒渗出液广西巴马小型猪磷脂酶A2 细胞毒素蛋白质组学

Relationship Between Several Biochemical Indexes and Resistance of Aegilops Species to Oat-Bird Cherry Aphids(Homoptera:Aphididae)

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Agricultural Sciences in China 2003年第9期2卷 994-999页

作者： li Qing, YE Hua zhi, YANG Qun fang and JIANG Su rong (College of Agronomy, Sichuan Agricultural University, yaan 625014, P.R.China) College of Agronomy Sichuan Agricultural University Yaan 625014 P.R.China

The biochemical mechanism of resistance of 9 Aegilops species including ***,***, ***, *** var. varianilis, ***, ***, ***, *** and *** in Triticeae to oat bird cherry aphid ( Rhopalosiphum padi ) were reported for the first time. The results showed that the content of total phenols in seedling was not associated with resistance to this aphid. The level of DIMBOA was negatively related to intrinsic innate rate of increase ( r m ) of R. padi. Neither of soluable sugar nor total phenols in adult stage was associated with resistance level. However, concentrations of free proline and serine in leaf were positively related to r m of R. padi ( r m =0.0636+0.23x pro ** +1.982x ser *). The content of DIMBOA was high negatively related to r m of R. padi ( r =0.819 ** ). The low level of free proline and serine and high concentration of DIMBOA could be regarded as important elements for resistance of Aegilops species to R. padi.

关键词： Aegilops Resistance mechanism Rhopalosiphum padi

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西岭雪山风景名胜区水质评价研究

四川环境 1996年第4期15卷 40-43页

作者：谢君刘俐四川农业大学分析测试中心四川农业大学

本文根据西岭雪山风景区的生态、环境特征和水质标准，选择了８个评价指标，对８个采样带和全游览景区的水体质量。

关键词：风景名胜区模糊数学水质综合评价西岭雪山

A Correlation Analysis of Tourism Based on Gray Theory——A case of Xingwen County

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四川地质学报 2009年第S1期29卷 133-139页

作者： WEI Ya-li 1,HUI Wei 2,WANG li-guo 3(1 College of Resources and Environment,Sichuan Agricultural University,yaan,Sichuan 625014,2Agronomy College,Sichuan Agricultural University,yaan,Sichuan 625014,3college of land environment science,Jiangxi Agricultural University,Nanchang,Jiangxi 330045)

Tourism industry has already become an important part of national economy,which not only played a positive role in the development of the economy,but promoted the adjustment and optimization of industrial *** paper analyzes the correlation between the tourism industry and the other industry through changes of the Xingwen County tourism industrial output value in the past seven *** the Gray Model,the correlation degree among the tourism industry and agriculture,industry,transport,wholesale and retail trade,postal and telecommunications industries is *** analysis result indicates that the order of the corresponding correlation degree:catering accommodation is 0.691> wholesale and retail is 0.617 > agriculture is 0.616 > Postal and telecommunications industry is 0.610> Transport is 0.602> Industry is *** accordance with the actual conditions of the industry in Xingwen,the industrial development policies and measures are put forward,which help the tourism industry Xingwen their rapid,coordinated and highly efficient operation.

关键词： Tourism industry Enterprise Relationship Gray relational model Correlation degree.

Lymphocyte Apoptosis in Vivo induced by Duck Swollenhead Hemorrhagic Disease Virus

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Lymphocyte Apoptosis in Vivo induced by Duck Swollenhead Hem...

The dynamics of Escherichia/Staphyloccocus/Lactobacillus in Respiratory tract of ducks infected by DPV virulent strain

第四届第九次全国学术研讨会暨饲料和动物源食品安全战略论坛

作者： li Chuanfeng Cheng Anchun Wang Mingshu Shen Chanjuan Zhang Na A Zhou Yi Chen Xiaoyue (Avian Disease Research Center,College of Veterinary Medicine,Sichuan Agricultural University,yaan,Sichuan 625014 China Key Laboratory of Animal Disease and Human Health of Sichuan Province,yaan,Sichuan 625014,China)

We studied apoptosis induced by duck swollenhead hemorrhagic disease virus (DSHDV) in vivo,focusing on the lymphoid organs that constitute the main targets for infection:bursa of Fabricius (BF), thymus,and spleen.72 ducks were inoculated intramuscularly with a virulent strain of *** morphology of lymphoid organs of these infected ducks was observed by light microscopy and transmission electron *** apoptosis was observed in DSHDV-infected BF,thymus, and *** apoptotic peak appeared at 72h *** death by classic necrosis was also observed in dead ducks after 72h postinoculation.,and it was further confirmed by in situ terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL).We conclude in DSHDV-infected ducks that apoptosis of lymphocytes resulted in the depletion of iymphocytes,may play an important role in the pathogenesis of duck viral swollenhead hemorrhagic disease.

关键词： duck swollenhead hemorrhagic disease virus apoptosis necrosis lymphocyte

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The dynamics of Escherichia/Staphyloccocus/Lactobacillus in ...

第三届第八次全国学术研讨会暨动物微生态企业发展战略论坛

作者： HU Ji, CHENG An-chun, WANG Ming-shu, liU Yan-li, CHEN Xiao-yue (Avian Disease Research Center, Animal Science & Technology College, Sichuan Agriculture University, yaan, Sichuan, 625014 The Key Laboratory of Animal Disease and Human Health of Sichuan Province, yaan, Sichuan, 625014)

This experiment were based on the FQ-PCR method which were founded by our lab. I detected the dynamics of Escherichia/ Staphylococcus/ Lactobacillus genus in respiratory and respiratory tract of ducks infected by DPV virulent strain through nasal infection, oral infection and hypodermic infection and its relative inhabitation ducks. We got the results below: The Escherichia extremely is remarkable is lower than compares (Plives together the duck to be extremely remarkable is lower than compares (Plives together to die the duck to be extremely remarkable is higher than compares (P<0.01).

关键词： DPV respiratory tract Escherichia Staphylococcus Lactobacillus

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微胶囊化聚磷酸铵在防火界面剂中的应用研究

新型建筑材料 2016年第1期43卷 21-25页

作者：李晓光陈晨屈雅安长安大学建筑工程学院陕西西安710061

为提高防火阻燃界面剂的性能,通过原位聚合的方法,采用三聚氰胺甲醛树脂(MF)为囊壁材料对防火阻燃界面剂组分聚磷酸铵(APP)进行了微胶囊化。以预聚体溶液p H值,MFAPP合成过程中的固化温度、固化时间为控制因素,通过正交试验制备出MFAPP... 详细信息

为提高防火阻燃界面剂的性能,通过原位聚合的方法,采用三聚氰胺甲醛树脂(MF)为囊壁材料对防火阻燃界面剂组分聚磷酸铵(APP)进行了微胶囊化。以预聚体溶液p H值,MFAPP合成过程中的固化温度、固化时间为控制因素,通过正交试验制备出MFAPP。通过MFAPP溶水后的水溶性馏分、表面张力系数和耐碱性测试,并结合热重、扫描电镜和能谱等方法,确定具有最佳包裹率的聚磷酸铵制备条件为:p H值8.5、固化温度80℃、固化时间2 h。浆体流变性能和拉伸粘结强度试验结果表明,与采用APP相比,以MFAPP为阻燃组分制备的防火阻燃界面剂浆体的工作性能更好,拉伸粘结强度符合JG 149—2013标准要求。

关键词：聚磷酸铵微胶囊化防火阻燃界面剂