Effect of Enzymes Supplementation (Rovabio and Kemin) on some Blood Biochemical Parameters, Performance and Carcass Characterizes in Broiler Chickens
محورهای موضوعی : CamelS. Goli 1 , H. Aghdam Shahryar 2
1 - Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar, Iran
2 - Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar, Iran
کلید واژه: Performance, Broiler, Biochemical parameters, multi enzymes,
چکیده مقاله :
An experiment was conducted to evaluate the efficacy of exogenous enzymes supplementation (ES) on performance, carcass traits and some blood parameters of broilers chickens. One hundred and eighty day old chicks with 40 ± 2 g initial body weight in a completely randomized design with 3 treatments and 4 replications were fed experimental diets included, 1) basal diet no enzymes (control), 2) basal diet + Rovabio® multi enzymes and 3) basal diet + Kemin® multi enzyme. The diets of all groups were formulated in an isonitrogeous and isoenergeticdietbased on corn and soybean. Data on feed consumption, weight gain, feed conversion ratio, carcass characters, high density lipoprotein (HDL), low density lipoprotein (LDL), cholesterol and triglyceride levels were collected for 3 periods starter (1-21 d), grower (22-42 d), finisher (43-49 d) and total (1-49 d). Results showed significant differences (P<0.05) among different experimental diets for weight gain, feed intake and feed conversion ratio. The lowest feed consumption and weight gain were observed in control group while the highest were obtained in groups that fed with multi enzyme supplementation. Also, poor feed conversion ratio (FCR) was observed in control group and best FCR (lowest) were in groups that were fed multi enzymes. In carcass traits no differences (P>0.05) between groups were observed. Adding enzyme significantly increased the concentration of blood HDL and decreased triglyceride, cholesterol and LDL at 21, 42 and 49 d of age (P<0.05). Results from this experiment suggest that multi enzyme supplementation can improve broiler performance.
آزمایشی برای برآورد تأثیر مکمل آنزیم‌های خارجی بدن بر عملکرد، صفات لاشه و برخی از فراسنجه‌های بیوشیمیایی خون جوجه‌های گوشتی انجام گرفت. 180 جوجه یکروزه با متوسط وزن 40 ± 2 گرم در یک طرح کاملاً تصادفی با سه تیمار و چهار تکرار با جیره‌های آزمایشی شامل 1) جیره بدون مکمل آنزیمی (شاهد) 2) جیره پایه + مولتی آنزیم روابیو 3) جیره پایه + مولتی آنزیم کمین تغذیه شدند. جیره گروه‌های آزمایشی بر پایه ذرت و کنجاله سویا و با انرژی و پروتئین یکسان تنظیم شدند. داده‌های مصرف خوراک، افزایش وزن بدن، ضریب تبدیل غذایی، سطوح کلسترول، تری گلیسرید، LDL، HDL برای سه دوره آغازین، رشد و پایانی و کل دوره‌ی (49-1 روزگی) و خصوصیات لاشه در پایان آزمایش اندازه‌گیری شد. نتایج نشان داد تفاوت معنی‌داری بین جیره‌های آزمایشی مختلف برای افزایش وزن، مصرف خوراک و ضریب تبدیل غذایی وجود دارد (05/0P<). کمترین مصرف خوراک و افزایش وزن بدن در گروه شاهد مشاهده شد در حالیکه بیشترین مقدار در گروه‌هایی که مکمل آنزیمی مصرف کردند به دست آمد. همچنین ضریب تبدیل خوراک ضعیف در گروه شاهد و بهترین ضریب تبدیل خوراک در گروه‌هایی که مکمل آنزیمی مصرف کردند، بود. افزودن آنزیم سبب افزایش معنی‌داری در غلظت HDL و کاهش تری‌گلیسرید، کلسترول و LDL خون در روزهای 21، 42 و 49 پرورشی شد (05/0P<). نتایج این آزمایش پیشنهاد می‌کند که مکمل مولتی آنزیم در جیره‌های گوشتی می‌تواند بر بهبود عملکرد مؤثر باشد.
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