نوع مقاله : تغذیه
نویسندگان
1 گروه شیلات، واحد آزادشهر، دانشگاه آزاد اسلامی، آزادشهر، ایران
2 گروه شیمی دانشکده علوم پایه دانشگاه گلستان، گرگان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
To study the effect of Lavandula officinalis essence on growth indices and the blood and immunology parameters of Oncorhynchus mykiss, an experiment was conducted as compeletly randomized block design with four treatments in 3 replications. Experimental treatments included 0.5, 1 and 2 ml essence in 1 Kg of diet. Control treatment also was kept without the use of essence and with the same condition compared other treatments. According to the results, the highest percentage increase in weight, length, Special Growth Rate, Survival Percent and Fish Net Production were observed under treatments of 1 and 2 ml essence in 1 Kg of diet. Diatary Conversion Ratio significantly was decreased with an increase of essence values. The highest RBC, WBC, MCHC and Neutrophilis were observed in 2 ml essence in diet. Amount of HB, MCV, MCH, Monocytes and Eosinophils were not affected under different treatments of essence comparison with control. The results showed that immunology system of O. mykiss such as Lysosomal enzymes, SOD, IgM and Total Immunoglobulin of Serum were increased with an increase of essence amounts. Overall, addition of L. officinalis essence especially 1 and 2 ml in O. mykiss diet caused positive and significant effect on some growth indices and the blood and immunology parameters of O. mykiss. This is probably due to the compounds such as phenols, tannins and monoterepen which are present in the L. officinalis essence. Therefore, it is recommended as a dietary supplement in the basal diet.
کلیدواژهها [English]