تأثیر سطوح مختلف نانوامولسیون اسانس رازیانه بر نسبت بازده انرژی و پروتئین، کیفیت بستر و فضولات و ویژگی‏ های رفاهی جوجه‏ های گوشتی تحت تنش گرمایی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری تغذیه طیور، گروه علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان

2 استادیار، گروه علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان

3 دانشیار، گروه علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان

4 استادیار، گروه صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان

چکیده

آزمایش حاضر به منظور بررسی تأثیر سطوح مختلف نانوامولسیون اسانس رازیانه بر نسبت بازده انرژی و پروتئین، کیفیت بستر و فضولات و ویژگی‏های رفاهی جوجه‏های گوشتی تحت تنش گرمایی انجام شد. تعداد 200 قطعه جوجه گوشتی یک روزه سویه راس 308 در قالب طرح کاملا تصادفی به 5 تیمار و 4 تکرار اختصاص داده شدند. تیمارهای آزمایشی شامل تیمار شاهد (جیره پایه بدون هیچ افزودنی)، جیره پایه به همراه 200 میلی‏گرم بر کیلوگرم اسانس و جیره پایه به همراه سطوح 50، 100 و 200 میلی‏گرم بر کیلوگرم نانوامولسیون اسانس رازیانه بودند. نتایج این آزمایش نشان دادند که ترانس-آنتول، فنچون و لیمونن به ترتیب با 42/81، 16/7 و 98/4 درصد، از ترکیبات اصلی اسانس رازیانه بودند. نسبت بازده پروتئین و انرژی تحت تأثیر تیمار­های مختلف آزمایشی قرار نگرفتند (05/0P>). pH فضولات به هنگام استفاده از نانوامولسیون در سطح 200 میلی‏گرم بر کیلوگرم به‌صورت معنی­داری کمتر از سطوح 50 و 100 میلی‏گرم بر کیلوگرم نانوامولسیون اسانس رازیانه و گروه شاهد بود. رطوبت بستر به هنگام استفاده از جیره حاوی 50 میلی‏گرم بر کیلوگرم نانوامولسیون اسانس رازیانه نسبت به گروه شاهد کاهش یافت (05/0≥P). سوختگی مفصل خرگوشی و سینه به هنگام استفاده از نانوامولسیون اسانس رازیانه در سطح 50 میلی‏گرم بر کیلوگرم نسبت به سایر گروه‏ها کمتر بود (05/0≥P). بر اساس نتایج این آزمایش به نظر می­رسد که استفاده از نانوامولسیون اسانس رازیانه در شرایط تنش گرمایی می‏تواند با کاهش رطوبت بستر باعث بهبود ویژگی‏های رفاهی جوجه‏های گوشتی شود.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of different levels of fennel essential oil nanoemulsion on energy and protein efficiency ratio, litter and excreta quality and welfare related parameters of broiler chickens reared under heat stress

نویسندگان [English]

  • Hadis Mirzaei 1
  • Mohammad Reza Ghorbani 2
  • Somayeh Salari 3
  • Mohammad Amin Mehrnia 4
1 Ph.D. Candidate of Poultry Nutrition, Department of Animal Science, Agricultural Sciences and Natural Resources University of Khuzestan, Iran
2 Assistant Professor, Department of Animal Science, Agricultural Sciences and Natural Resources University of Khuzestan, Iran
3 Associate Professor, Department of Animal Science, Agricultural Sciences and Natural Resources University of Khuzestan, Iran
4 Assistant Professor, Department of Food Science and Technology, Agricultural Sciences and Natural Resources, University of Khuzestan, Iran
چکیده [English]

The present experiment was carried out to evaluate the effect of different levels of fennel essential oil nanoemulsion (FEON) on energy and protein efficiency ratio, litter and excreta quality and welfare related parameters of broiler chickens reared under heat stress. A total of 200 day-old Ross 308 broiler chicks were assigned in a completely randomized design with 5 treatments and 4 replicates. The experimental treatments were control (basal diet with no additive), basal diet and 200 mg/kg fennel essential oil (FEO) and basal diet with 50, 100 and 200 mg/kg of FEON. The results of this experiment showed that trans-anethole, fenchone and limonene with the values of 81.49, 7.16 and 4.98 percent, respectively were the main compounds of fennel essential oil. The protein and energy efficiency ratios were not affected by different experimental treatments. The excreta pH of chicks fed diet containing 200 mg/kg FEON was significantly (P≤0.05) less than those of fed diets containing 50 and 100 mg/kg of FEON and the control group. The litter moisture was decreased significantly (P≤0.05) by supplementation of diet with 50 mg/kg FEON when compared with control group. The hock burn and abdominal plumage scores were decreased significantly (P≤0.05) in chicks fed diet containing 50 mg/kg FEON when compared with other groups. According to the results of this experiment, it seems that the utilization of FEON in heat stress condition can improve broiler welfare related parameters via decreasing the litter moisture.

کلیدواژه‌ها [English]

  • Broilers
  • fennel essential oil nanoemulsion
  • heat stress
  • welfare parameters

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علوم دامی ایران
دوره 49، شماره 3
آذر 1397
صفحه 405-414

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سابقه مقاله

  • تاریخ دریافت: 23 اسفند 1396
  • تاریخ بازنگری: 10 مهر 1397
  • تاریخ پذیرش: 14 مهر 1397

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