对分课堂(Presentation,Assimilation and Discussion,简称PDA)作为一种新兴的教学模式,分为讲授、内化吸收和讨论3个环节,其中1、3环节在课堂上完成,第2环节留给学生课后进行。Zuvio软件(中文名:出题优)是一种实时互动的课堂教学辅助AP...对分课堂(Presentation,Assimilation and Discussion,简称PDA)作为一种新兴的教学模式,分为讲授、内化吸收和讨论3个环节,其中1、3环节在课堂上完成,第2环节留给学生课后进行。Zuvio软件(中文名:出题优)是一种实时互动的课堂教学辅助APP软件。针对兽医内科学教学效果不佳的现状,从课程特点和学生学习习惯出发,将出题优软件有机地融入对分课堂教学模式,在课程结束前向全体学生(97名)发放问卷反馈实施效果,结果表明:参与调查的97名学生认为出题优软件对兽医内科学的对分课堂有应用价值,集中表现为能够增强学习兴趣、活跃课堂气氛以及激发课后主动学习的意愿,同时认为有必要在专业其他课程的教学中推广应用。展开更多
[Objective] To explore the effect of anterior stomach disease on the rumen function of beef cattle. [Method]The ruminal contraction function of beef cattle was recorded by multi-channel physiological recorder,the freq...[Objective] To explore the effect of anterior stomach disease on the rumen function of beef cattle. [Method]The ruminal contraction function of beef cattle was recorded by multi-channel physiological recorder,the frequency of rumination and belching was observed to detect their effects on the motor function of rumen. Changes of ciliates in the rumen and the intensity of fermentation were determined to detect their influences on digestive function. [Results] The ruminal tension and systolic frequency significantly decreased and the rumination frequency decreased or even stopped under the condition of impactio ruminis,and the belching frequency also decreased. Ciliate numbers of atonia proventriculorum,rumen impaction and rumen expansion cattle were significantly lower than that of normal cattle( P < 0. 01),and the viability of ciliates also significantly decreased. [Conclusion] Occurrence of the stomach disease of beef cattle had significant adverse effects on ruminal function of cattle.展开更多
文摘对分课堂(Presentation,Assimilation and Discussion,简称PDA)作为一种新兴的教学模式,分为讲授、内化吸收和讨论3个环节,其中1、3环节在课堂上完成,第2环节留给学生课后进行。Zuvio软件(中文名:出题优)是一种实时互动的课堂教学辅助APP软件。针对兽医内科学教学效果不佳的现状,从课程特点和学生学习习惯出发,将出题优软件有机地融入对分课堂教学模式,在课程结束前向全体学生(97名)发放问卷反馈实施效果,结果表明:参与调查的97名学生认为出题优软件对兽医内科学的对分课堂有应用价值,集中表现为能够增强学习兴趣、活跃课堂气氛以及激发课后主动学习的意愿,同时认为有必要在专业其他课程的教学中推广应用。
文摘[Objective] To explore the effect of anterior stomach disease on the rumen function of beef cattle. [Method]The ruminal contraction function of beef cattle was recorded by multi-channel physiological recorder,the frequency of rumination and belching was observed to detect their effects on the motor function of rumen. Changes of ciliates in the rumen and the intensity of fermentation were determined to detect their influences on digestive function. [Results] The ruminal tension and systolic frequency significantly decreased and the rumination frequency decreased or even stopped under the condition of impactio ruminis,and the belching frequency also decreased. Ciliate numbers of atonia proventriculorum,rumen impaction and rumen expansion cattle were significantly lower than that of normal cattle( P < 0. 01),and the viability of ciliates also significantly decreased. [Conclusion] Occurrence of the stomach disease of beef cattle had significant adverse effects on ruminal function of cattle.
