Metabolizable Energy and Chemical Composition of Poultry by-Product Meal

محورهای موضوعی : Camel

A. Zarei ¹ ( Department of Animal Science, Karai Branch, Islamic Azad University, Karai, Iran )
M. Mohammadi ² ( Department of Animal Science, Karai Branch, Islamic Azad University, Karai, Iran )
B. Hemmati ³ ( Department of Animal Science, Karai Branch, Islamic Azad University, Karai, Iran )

تاریخ دریافت : 1392/10/04 تاریخ پذیرش : 1392/11/10 تاریخ انتشار : 1393/09/10

کلید واژه: chemical composition, AME, AMEn, amino acid, poultry by-product meal (PBPM), TME, TMEn,

چکیده مقاله :

This study was conducted to determine the chemical composition and metabolizable energy of poultry by-product meal (PBPM) from two slaughterhouses in Iran. Samples were analyzed for dry matter, crude protein, ash, ether extract and gross energy. The amounts of calcium, phosphorus, sodium, potassium, Magnesium, Iron, Manganese, copper and Zinc were determined. The apparent metabolizable energy (kcal/kg) (AME), apparent metabolizable energy corrected for nitrogen (kcal/kg) (AMEn), true metabolizable energy (kcal/kg) (TME) and true metabolizable energy corrected for nitrogen (kcal/kg) (TMEn) were determined based on sibbald’s procedure. For this purpose, twelve 230-day old New Hampshire males were used. There was no significant difference (P<0.05) between kinds of metabolizable energies in samples. The standardized digestible amino acid content also determined. The highest and lowest amount belongs to leucine and tryptophan. Results from this study showed there is different between two samples of PBPM.

چکیده انگلیسی:

این آزمایش به منظور تعیین ترکیب شیمیایی و انرژی متابولیسمی پودر ضایعات کشتارگاهی طیور حاصل از دو کشتارگاه صورت پذیرفت. ماده خشک، پروتئین خام، خاکستر، عصاره اتری و انرژی خام نمونه‌ها مورد آزمایش قرار گرفتند. مقادیر کلسیم، فسفر، سدیم، پتاسیم، منیزیم، آهن، منگنز، مس و روی اندازه‌گیری شدند. انرژی متابولیسم ظاهری (AME)، انرژی متابولیسم ظاهری تصحیح شده برای ازت (AMEn)، انرژی متابولیسم حقیقی (TME) و انرژی متابولیسم حقیقی تصحیح شده برای ازت (TMEn) بر حسب کیلوکالری برگرم بر اساس روش سیبالد تعیین گردید. برای این منظور از دوازده قطعه خروس نیوهمپشایر با سن 230 روزه استفاده شد. بین انواع انرژی متابولیسمی در نمونه‌ها تفاوت معنی‌داری مشاهده نشد. همچنین میزان اسیدهای آمینه قابل هضم استاندارد تعیین گردید. بیشترین و کمترین میزان مربوط به لوسین و تریپتوفان بود. نتایج این تحقیق نشان داد که بین نمونه‌های مختلف پودر ضایعات کشتارگاهی طیور تفاوت وجود دارد.

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