Effect of owner experience,living environment,and dog characteristics on owner reports of behavior of Argentine Dogos in Italy

Previous research reported contrasting results on the effect of owner experience on dog behaviors. This may be because of dog breed genetic variability, differences in expectations, management choices, and attitude toward their dogs by owners of dogs of different breeds. A study of a single breed may help provide a better insight into this issue. A convenience sample of 94 participants, owners of 181 Argentine Dogos, was recruited to provide information on their dogs' behaviors through a questionnaire. Participants were classified according to their previous general experience or inexperience with dogs and whether they had previously owned an Argentine Dogo (expert vs. naive owners). Reasons for getting a dog (companionship, guarding, hunting, breeding) and attendance at dog-training classes were also explored. Pearson chi-square tests and binary logistic regressions were used to analyze the data. Previous inexperience with dogs was associated with a higher prevalence of dogs that were fearful of children and unknown dogs. Naive Dogo owners perceived that their dogs were more obedient and friendly toward strangers but aggressive toward children, than those belonging to Argentine Dogo experts. It also appeared that living environment and the dog's age are critical predictors of many outcome variables. Kennel living was found to be predictive of car and food protection, owner-directed aggression and aggression toward children, whereas house living was associated with fear of loud noises. Changes related to the dogs' age were probably related to behavioral development in the dogs. Destructiveness, excessive body licking, and protective aggression were more common in younger dogs, whereas aggression to unknown dogs was more common in older ones. Protective aggression was more common in males, and fear of startling noises was more common in females. Intact dogs showed a higher probability of having attention-getting behavior, and neutered dogs were more fearful of traffic. Our findings are correlative. Even if causative links cannot be made, our findings certainly provide direction for further investigation.     

《畜产品加工》课程教学内容的研究与设计

通过介绍《畜产品加工》课程教学内容设计的全过程,重点对畜产品加工相关岗位典型工作任务和职业能力进行分析,围绕课程设计的理念和思路,紧密结合教学规律和学生的认知规律,对课程教学内容的设计进行了论述,旨在为探索中等职业学校《畜产品加工》课程教学内容改革提供参考。     

Effects of livestock breed and rearing experience on foraging behaviour of yearling beef cattle grazing unimproved grasslands

The relative importance of breed versus rearing experience on the grazing behaviour and diet selection of beef cattle when grazing unimproved grassland was examined over 4 years. Suckler‐reared calves of a traditional (T) breed (North Devon) or a commercial (C) breed (Simmental × Hereford Friesian) were cross‐fostered and then reared either extensively (E) on unimproved grassland or intensively (I) on agriculturally improved fertilized grassland. As yearlings, the four groups of calves (Traditional breed + Extensive rearing (TE); Traditional breed + Intensive rearing (TI); Commercial breed + Extensive rearing (CE) and Commercial breed + Intensive rearing (CI)) grazed unimproved grassland dominated by Molinia caerulea, for 2 months, and foraging behaviour was studied in a test phase. There was a breed effect on total (bites + chews; TJM) jaw movement rate (T, 78·2 vs. C, 76·5 min^?1; F prob. = 0·041) during grazing and on the proportion of bites taken from plant communities with sward height ≥6 cm (T, 0·83 vs. C, 0·76; F prob. = 0·018). Rearing experience affected TJM rate in the first year in July (E, 80·0 vs. I, 76·8 min^?1; F prob. = 0·015) and August (E, 78·5 vs. I, 75·5 min^?1; F prob. = 0·046). The intensively reared animals grew less well on average during the test phase than those that had previous experience of the unimproved grassland as calves with their mothers (E, 0·16 vs. I, 0·09 kg day^?1; F prob. = 0·033). Our findings indicate that the rearing experience of livestock appears to be as important as the breed when designing grazing managements for nature conservation areas.     

台湾茶业之考察

本文通过台湾茶业考察见闻,论述台湾茶业的现状与特点,并提出今后发展茶业可参考借鉴台湾发展茶业的一些经验。     

基层育种的实践和体会

本文论述了武义县成功选育出国家级茶树品种的条件,阐述了‘春雨1号’、‘春雨2号’育种的实践过程和经验总结,为基层育种工作提供参考。     

中国农业发展经验对于中非农业合作的启示

通过回顾中国农业发展的绩效与经验,探究其对于非洲减贫和经济增长的意义,并在此基础上探究如何才能更好的加强中国农业发展的经验与中国对非农业援助实践之间的相关性.     

新形势下高层次科技人才引进工作的思考

高层次科技人才是昂贵、稀缺的人才资源,在当今社会是各国发展的核心竞争力,是各大高校和科研机构相互争夺的对象,做好高层次科技人才的引进工作对促进科技创新水平的提高具有重要的意义。文章分析了我国高层次科技人才队伍的现状以及高层次科技人才引进工作中存在的主要问题,从人才引进规划、选才机制、人才引进渠道和方式、引进与再培养、薪酬激励和考评、协议管理以及服务保障等多方面进行了探讨,针对性地提出了完善高层次科技人才引进工作的措施。     

国外农业技术推广模式经验借鉴及启示

介绍并分析了法国、日本、美国等发达国家的农业科学技术推广服务经验,指出了对于我国农业技术推广服务体系建设的启示,并从法律制度、组织机构体系、人才建设等方面提出了完善我国新型农村农业技术服务推广体系的相关建议。     

SPSS在高校图书馆统计中的应用

阐释了高校图书馆统计工作现状及趋势，将SPSS统计软件应用于高校图书馆统计工作中，并举例说明如何使用SPSS统计软件对读者借阅情况进行差分处理，以形成对读者未来借阅规律的预测。     

浅谈蓝派冲击压实技术在工程项目中的应用

本文结合鸡讷(林大段)二级公路,路基工程蓝派冲击压实的原理、应用过程及效果,详细阐述了蓝派冲击压实的情景和压实过程中的控制要点。