استفاده از پروتئین کنجاله بادام زمینی در جیره و مکمل سازی آنزیم تجاری بر عملکرد جوجه های گوشتی و تاثیر آن بر شاخص های تولید
محورهای موضوعی : فصلنامه زیست شناسی جانوری
نفیسه رحمانیان شریف آباد
1
(گروه علوم دامی، واحد کاشمر، دانشگاه آزاد اسلامی، کاشمر، ایران)
کلید واژه: کنجاله بادام زمینی, آنزیم تجاری, جوجه‌های گوشتی,
چکیده مقاله :
این آزمایش با تعداد 384 قطعه جوجه گوشتی از سویه تجاري راس 308 با 8 تیمار و در قالب طرح فاکتوریل با سطوح 0، 20، 40 و 60 جایگزینی مخلوط پروتئینی کنجاله بادام زمینی و 2 سطح آنزیم چندگانه صفر و 250 گرم در تن انجام گرفت. نتایج نشان دادند اثر سطوح مختلف مخلوط پروتئینی بر وزن بدن در سنین مختلف معنی دار بود (05/0p < ) به طوري که با افزایش سطوح مخلوط پروتئینی در جیره، وزن بدن کاهش یافته و اما بین شاهد و گروه داراي خوراک 20 درصد جایگزینی مخلوط پروتئینی با کنجاله سویا اختلاف معنی‌دار مشاهده نشد. اثر سطوح مخلوط پروتئینی بر ضریب تبدیل خوراک معنی¬دار بود. افزایش سطوح مخلوط پروتئینی ضریب تبدیل افزایش یافت، بیشترین ضریب تبدیل مربوط به تیمار با جایگزینی 60 درصد از مخلوط پروتئینی با کنجاله سویا و کمترین ضریب تبدیل مربوط به تیمار شاهد بوده است. اثر سطوح مختلف جایگزینی مخلوط پروتئینی کنجاله بادام زمینی و پودر ضایعات کشتارگاهی طیور بر شاخص تولید در 42-1 روزگی معنی دار بود (05/0p < ). به طوري که با افزایش سطوح مخلوط پروتئینی شاخص تولید کاهش یافت. به طور کلی نتایج این تحقیق نشان می‌دهد که سطح 20 درصد جایگزینی مخلوط پروتئینی کنجاله بادام زمینی و پودر ضایعات کشتارگاهی طیور در جیره تاثیر منفی چشمگیري بر عملکرد جوجه‌هاي گوشتی نداشته و احتمالا می‌تواند جایگزین منبع پروتئین گران قیمت کنجاله سویا باشد. همچنین استفاده از مکمل آنزیمی در جیره تاثیر معنی¬داري بر عملکرد جوجه‌هاي گوشتی نداشت.
This experiment was carried out with 384 broiler chickens of the commercial Ras 308 strain with eight treatments and in the form of a factorial design with levels of 0, 20, 40, and 60 replacements of peanut meal protein mixture and tow levels of multiple enzymes, zero and 250 grams per ton. The results showed that the effect of different levels of protein mixture on body weight at different ages was significant (p < 0.05) so with increasing levels of protein mixture in the diet, body weight decreased, but no significant difference was observed between the control group and the group with 20% replacement of protein mixture with soybean meal. The effect of protein mixture levels on the feed conversion ratio was significant. The Conversion ratio increased with the increase of the protein mixture levels, the highest conversion ratio was related to the treatment with replacing 60% of the protein mixture with soybean meal and the lowest conversion ratio was related to the control treatment. The effect of different replacement levels of peanut meal protein mixture and poultry slaughterhouse waste powder on the production index at 1-42 days was significant (p <0.05). So with increasing levels of protein mixture, the production index decreased. In general, the results of this research show that the 20% replacement level of protein mixture of peanut meal and poultry slaughterhouse waste powder in the diet does not have a significant negative effect on the performance of broiler chickens, and it can probably replace the expensive protein source of soybean meal. Also, the use of enzyme supplements in the diet had no significant effect on the performance of broiler chickens.
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