[Objectives]The effects of condensed quebracho tannins on the production performance and blood routine indices of Simmental fattening cattle were investigated experimentally.[Methods]Twenty four Simmental fattening ca...[Objectives]The effects of condensed quebracho tannins on the production performance and blood routine indices of Simmental fattening cattle were investigated experimentally.[Methods]Twenty four Simmental fattening cattle were selected and randomly divided into two treatment groups according to their body weight,with 12 animals in each group.The diet of the control group consisted of beef cattle concentrate supplement+silage+hay,and the diet of the experimental group consisted of beef cattle concentrate supplement+silage+hay+tannins,and the experimental period was 30 d.[Results]Compared with the control group,the addition of tannins[30 g/(cattle·d)]to the diet of beef cattle increased the daily weight gain of Simmental beef cattle by 24.68%(P<0.01),while the feed conversion ratio decreased by 2.57%(P>0.05).The gross profit per cattle increased by 973.63 yuan,and the economic benefit increased by 114.78%.Platelets were higher in the experimental group than in the control group(P<0.01);hemoglobin was lower in the experimental group than in the control group(P<0.01);leukocytes,neutrophils,monocytes and lymphocytes were lower in the experimental group than in the control group(P<0.01);and erythrocytes were lower in the experimental group than in the control group(P<0.05).[Conclusions]This study provides a theoretical basis for the rational utilization of quebracho tannins.展开更多
Metacognitive strategy, as one of the branches of learning strategy, can help students to consciously plan, monitor and evaluate their language learning, thus facilitate it. As a matter of fact, listeuing has long bee...Metacognitive strategy, as one of the branches of learning strategy, can help students to consciously plan, monitor and evaluate their language learning, thus facilitate it. As a matter of fact, listeuing has long been regarded as an important linguistic skill to be developed in college English teaching. However, there are still some misunderstandings which exist among teachers and students. With the development of second language acquisition and listening comprehension, it becomes clear that listening is an active process in which the listener negotiates meanings in a conscious way. Therefore, if teachers can train students in metacognitive strategies in college English listening teaching, students can consciously plan, monitor and evaluate the entire listening process and become an active listener, thus improve their listening proficiency.展开更多
The Afghan-born American writer,Khaled Hosseini’s first two novels The Kite Runner and A Thousand Splendid Suns talk about the stories related to Afghanistan.They became very popular immediately after they were publi...The Afghan-born American writer,Khaled Hosseini’s first two novels The Kite Runner and A Thousand Splendid Suns talk about the stories related to Afghanistan.They became very popular immediately after they were published.Both the novels of Hosseini are written in the backdrop of war.The wars in Afghanistan left a deep impression on Hosseini’s mind.It is very natural that a writer is affected by such changes and he reflects upon them in his writings.Therefore,by using qualitative approach,this research work mainly focuses on investigating how wars affected Afghanistan,and in turn a writer Khaled Hosseini and his works.展开更多
基金Supported by National Modern Agriculture(Beef Cattle and Yak)Industrial Technology System(CARS-37)Feed Industry Expert Technical Service Team Project of Ningxia Agriculture and Rural Affairs DepartmentAnimal Husbandry New Technology Promotion Project of Ningxia Feed Workstation.
文摘[Objectives]The effects of condensed quebracho tannins on the production performance and blood routine indices of Simmental fattening cattle were investigated experimentally.[Methods]Twenty four Simmental fattening cattle were selected and randomly divided into two treatment groups according to their body weight,with 12 animals in each group.The diet of the control group consisted of beef cattle concentrate supplement+silage+hay,and the diet of the experimental group consisted of beef cattle concentrate supplement+silage+hay+tannins,and the experimental period was 30 d.[Results]Compared with the control group,the addition of tannins[30 g/(cattle·d)]to the diet of beef cattle increased the daily weight gain of Simmental beef cattle by 24.68%(P<0.01),while the feed conversion ratio decreased by 2.57%(P>0.05).The gross profit per cattle increased by 973.63 yuan,and the economic benefit increased by 114.78%.Platelets were higher in the experimental group than in the control group(P<0.01);hemoglobin was lower in the experimental group than in the control group(P<0.01);leukocytes,neutrophils,monocytes and lymphocytes were lower in the experimental group than in the control group(P<0.01);and erythrocytes were lower in the experimental group than in the control group(P<0.05).[Conclusions]This study provides a theoretical basis for the rational utilization of quebracho tannins.
文摘Metacognitive strategy, as one of the branches of learning strategy, can help students to consciously plan, monitor and evaluate their language learning, thus facilitate it. As a matter of fact, listeuing has long been regarded as an important linguistic skill to be developed in college English teaching. However, there are still some misunderstandings which exist among teachers and students. With the development of second language acquisition and listening comprehension, it becomes clear that listening is an active process in which the listener negotiates meanings in a conscious way. Therefore, if teachers can train students in metacognitive strategies in college English listening teaching, students can consciously plan, monitor and evaluate the entire listening process and become an active listener, thus improve their listening proficiency.
文摘The Afghan-born American writer,Khaled Hosseini’s first two novels The Kite Runner and A Thousand Splendid Suns talk about the stories related to Afghanistan.They became very popular immediately after they were published.Both the novels of Hosseini are written in the backdrop of war.The wars in Afghanistan left a deep impression on Hosseini’s mind.It is very natural that a writer is affected by such changes and he reflects upon them in his writings.Therefore,by using qualitative approach,this research work mainly focuses on investigating how wars affected Afghanistan,and in turn a writer Khaled Hosseini and his works.
