نوع مقاله : مقاله پژوهشی
1 گروه شیلات، دانشکده کشاورزی و منابع طبعی دانشگاه گنبد کاووس، استان گلستان، شهرستان گنبد کاووس، ایران
2 دانشگاه علوم کشاورزی و منابع طبیعی گرگان.
عنوان مقاله [English]
In this study the effect of blend of Bacillus circulans, Bacillus licheniformis and baker´s yeast, Saccharomyces cerevisiae with concentrations of 1×105, 2×105 and 3×105 CFU/ml in suspension of bioencapsulation of Artemia urmiana nauplii were studied on performance of growth parameters in Sazan (Cyprinus carpio carpio L.) larvae. This experiment was conducted in a completely random design in three experimental treatments and control with three replicates for each treatment. The Sazan (Cyprinus carpio carpio) larvae were cultured for 80 days in two experiment stages. In the first stage of experiment the fish larvae were fed A. urmiana nauplii bioencapsulated with blend of probiotic bacilli and yeast, for 35 days. The fish larvae in control were fed unenriched A. urmiana naplii. In the second stage of experiment, fish larvae were fed experimental diet supplemented with blend of yeast and probiotic bacilli for a period of 45 days. The results in the first stage of experiment indicated that blend of the probiotics had significant effects on growth and feeding parameters compare control (p<0.05). In experimental treatments the final body weight, total length, specific growth rate, food conversion efficiency, growth conversion efficiency had significantly increased in comparison to control. The results of the second stage of experiment showed that the growth and feeding parameters were significantly increased compare to control (P<0.05). This study indicated that the different concentration of probiotic bacillus and yeast of S. cerevisiae via bioencapsulation of A. urmiana and supplementation of diet had different effects on the growth and feeding parameters of Sazan larvae.