بررسي اثر اينولين و مكمل هاي گياهي (پودر مرزه و پياز) بر شاخص هاي رشد، تغذيه، تركيبات بدن و فعاليت آنزيم هاي گوارشي (ليپاز، آميلاز و آلكالين فسفاتاز) در ماهيان جوان كپور معمولي (Cyprinus carpio)

Investigation of the effect of inulin and herbal addetives (Savory and Onion Powder) on growth performance, feeding indices, body composition and activity of digestive enzymes (Lipase, Amylase and Alkaline phosphatase) in the juveniles of the common Carp (Cyprinus carpio)

هدف از اين مطالعه بررسي اثرات اينولين و مكمل هاي گياهي (پودر مرزه و پياز) بر شاخص هاي رشده تغذيه، تركيبات بدن و فعاليت آنزيمهاي گوارشي ليهاز آميلاز و الكالين فسفاتاز در ماهيان جوان كپور معمولي (Cypr224S CG7) بود. در اين بررسي تعداد 150 عد ماهي كپور جوان با ميانگين وزني 0/08± 20 گرم، در 15 گروه 10 تايي (شامل يك گروه شاهد و 4 گروه تيمار و هر يك با سه تكرار) به مدت 45 روز با جيره هاي غذايي آزمايشي تغذيه شدند. گروه شاهد تنها با جيره پايه (فاقد اينولين و پودر گياه مرزه و پياز) تغذيه شده و جيره تيمار اينولين حاوي 1 درصد اينولين، تيمار مرزه داري 1 درصد پودر مرزه، تيمار پياز حاوي 1 درصد پودر پياز و نيمار مرزه- پياز حاوي مخلوطي از 0/5 درصد پودر مرزه و 0/5 درصد پودر پياز بود. تغذيه ماهيان مورد آزمايش تا حد سيري و به تعداد سه بار در روز انجام شد. نتايج نشان داد كه اينولين و مكمل هاي گياهي تأثير معني داري بر عملكرد رشد (وزن نهايي، مقدار افزايش وزن بدن و نرخ رشد ويژه) و تغذيه ماهيان كهور معمولي (ضريب تبديل غذايي، نرخ بازده پروتئين و كارايي غذا در مقايسه با گروه شاهد نداشته است ( 0/05

The goal of this study was evaluating of the effects of inulin and herbal additives (Savory and Onion) on growth performance, feeding indices, body composition and activity of digestive enzymes (Lipase, Amylase and Alkaline phosphatase) in the juveniles of the common Carp (Cyprinus carpio). In this study 150 young carp fish with initial average weight of 20.0 ± 0.08 g were fed in fifteen groups of ten (containing a control group and four other groups with three replicate) with different experimental diets for 45 days. control group was fed with basal diet only (without inulin, savory powder and onion) and the diet of treatment inulin contained 1% inulin, treatment savory; 1% savory powder, treatment onion; 1% onion powder and treatment savory-onion; mixture of 0.5% savory powder and 0.5% onion powder. Experimental fish were fed to satiation triple daily. At the end of the period, growth performance (Final weight, weight gain, specific growth rate) and feed utilization (food conversion ratio, feed efficiency, protein efficiency ratio) were not significantly different compared with control group (p>0.05), but daily feed (3.43± 0.09) and protein intake (1.3±0.06) respectively were significantly increased in fish fed by savory compared with control group (2.49± 0.17) and (0.97±0.07) (p<0.05). On the other hand, digestive enzymes activity in different treatments was not significantly different compared with control group (p>0.05). But they have significant effect on the body composition (p < 0.05). So, the maximum amount of protein was observed in herbal treatments containing savory (60.43 ± 0.25) and onion (61.19 ± 0.06) which showed significant different compared with control group (58.39 ± 0.32) (p<0.05). Basis on the results, the use of 1% savory or onion powder is recommended for improving body composition of juvenile carp.