The fish farming was introduced in Burundi in about 1950s. Actually, several fish ponds were abandoned and many others were still unproductive. This study aims to present current state and perspectives of the fish far...The fish farming was introduced in Burundi in about 1950s. Actually, several fish ponds were abandoned and many others were still unproductive. This study aims to present current state and perspectives of the fish farming for its real contribution to the socio-economic development. The results presented are compilation of physical and chemical parameters series measured in fish ponds and inquiries led in 2010-2014 to the fish farmers in seven provinces （40% of the total area of the country）. Weak values of some physical and chemical parameters showed that the majority of ponds are badly maintained. Thus, the dissolved oxygen values varied between 0.2 mg/L and 3.5 mg/L. The high relinquishment rate of the fish fanning （between 40% and 67% according to the provinces） could be explained by many constraints： no centers of fish farming breeding for various fish species and no production center of complete foods with local sub-products. About 75% of fish famers confirmed that they have never benefited framing in fish fanning. In spite of the diverse constraints, Burundi has a dense rivers system with favorable physical and chemical parameters and many appropriate sites for the fish farming. Thus, the main suggestions concern the sector reorganization.展开更多
At present, the reform of colleges and universities in our country is in full swing. In the course of teaching design of art in colleges and universities, it is necessary to change the teaching mode in time to adapt t...At present, the reform of colleges and universities in our country is in full swing. In the course of teaching design of art in colleges and universities, it is necessary to change the teaching mode in time to adapt to the new teaching development environment. In the era of digital development, we need to give full attention to the optimization of art design teaching in colleges and universities, and run new teaching techniques. This paper mainly analyzes the advantages and importance of the digital art design in colleges and universities, and then discusses the application of digital technology in the art design teaching and the concrete teaching optimiTatiun strategy in detail. Hoping to through this theoretical research, contribute to the improvement of the quality of art design teaching.展开更多
文摘The fish farming was introduced in Burundi in about 1950s. Actually, several fish ponds were abandoned and many others were still unproductive. This study aims to present current state and perspectives of the fish farming for its real contribution to the socio-economic development. The results presented are compilation of physical and chemical parameters series measured in fish ponds and inquiries led in 2010-2014 to the fish farmers in seven provinces （40% of the total area of the country）. Weak values of some physical and chemical parameters showed that the majority of ponds are badly maintained. Thus, the dissolved oxygen values varied between 0.2 mg/L and 3.5 mg/L. The high relinquishment rate of the fish fanning （between 40% and 67% according to the provinces） could be explained by many constraints： no centers of fish farming breeding for various fish species and no production center of complete foods with local sub-products. About 75% of fish famers confirmed that they have never benefited framing in fish fanning. In spite of the diverse constraints, Burundi has a dense rivers system with favorable physical and chemical parameters and many appropriate sites for the fish farming. Thus, the main suggestions concern the sector reorganization.
文摘At present, the reform of colleges and universities in our country is in full swing. In the course of teaching design of art in colleges and universities, it is necessary to change the teaching mode in time to adapt to the new teaching development environment. In the era of digital development, we need to give full attention to the optimization of art design teaching in colleges and universities, and run new teaching techniques. This paper mainly analyzes the advantages and importance of the digital art design in colleges and universities, and then discusses the application of digital technology in the art design teaching and the concrete teaching optimiTatiun strategy in detail. Hoping to through this theoretical research, contribute to the improvement of the quality of art design teaching.
