Effect of Vegetable Oil Source and L-Carnitine Supplements on Growth Performance, Carcass Characteristics and Blood Biochemical Parameters of Japanese Quails (Coturnix japonica)
محورهای موضوعی : Camelع. عابدپور 1 , س.م.ع. جلالی 2 , ف. خیری 3
1 - Department of Animal Science, Faculty of Agriculture and Natural Resources, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
2 - Department of Animal Science, Faculty of Agriculture and Natural Resources, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
3 - Department of Animal Science, Faculty of Agriculture and Natural Resources, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
کلید واژه: carcass characteristics, Japanese quail, blood metabolites, L-carnitine, oil source,
چکیده مقاله :
An experiment was conducted to study the effects of soybean, linseed and sunflower oil (various sources of fatty acids) with and without L-carnitine supplements (0 and 50 mg kg-1) on performance, blood biochemical parameters and carcass traits of Japanese quail. One hundred and ninety-two of 7-day old female Japanese quail were randomly assigned to 6 dietary treatments with 4 replicates and fed in the duration of 28 days. A 3 × 2 factorial arrangement (three oil sources and two levels of L-carnitine) was used in a completely randomized design with 8 birds per cage. Feed intake (FI), body weight gain (BWG) and feed conversion ratio (FCR) of birds were measured during the experiment. Moreover, 2 birds from each cage (replicate) were randomly selected at the end of the experiment and then the concentration of cholesterol, albumin and total protein of blood sera were measured. Results showed that BWG and FCR were affected by dietary treatments and BWG of quails significantly increased by the addition of L-carnitine to linseed oil treatment (P<0.05). Different types of vegetable oil and L-carnitine supplementation had no significant (P>0.05) effect on liver and gizzard of quails. Linseed and sunflower oil increased heart weight of quail. Addition of L-carnitine to diet, containing sunflower oil reduced the relative weight of liver and heart. Sunflower oil reduced the concentration of total protein and albumin in blood serum of birds. L-carnitine supplement increased the concentration of total protein and globulin in female blood serum. Data of the present experiment showed that source of dietary oil affected the performance of Japanese quail and also use of different plant oil sources with L-carnitine supplementation affected the blood biochemical parameter of female Japanese quail.
آزمایشی به منظور مطالعه اثرات روغن سویا، کتان و آفتابگردان (منابع مختلف اسید چرب) با و بدون مکمل ال-کارنیتین (0 و 50 میلی گرم در کیلوگرم) بر عملکرد، فراسنجه‌های بیوشیمیایی خون و خصوصیت لاشه بلدرچین ژاپنی انجام گرفت. تعداد 192 قطعه بلدرچین ژاپنی ماده با سن 7 روز، به طور تصادفی به 6 جیره غذایی با 4 تکرار اختصاص یافتند. آزمایش به صورت کاملاً تصادفی بر اساس طرح فاکتوریل 3 × 2 (سه منبع روغن و دوسطح ال-کارنیتن) با 8 پرنده در هر قفس انجام شد. خوراک مصرفی، افزایش وزن و ضریب تبدیل خوراک پرنده‌ها در مدت آزمایش اندازه‌گیری گردید. هم چنین، 2 پرنده از هر قفس (تکرار) به صورت تصادفی در پایان آزمایش انتخاب و سپس مقدار کلسترول، آلبومین و پرتئین کل سرم خون اندازه‌گیری گردید. نتایج نشان داد که افزایش وزن و ضریب تبدیل خوراک تحت تأثیر تیمارهای غذایی قرار گرفت و افزایش وزن بلدرچین‌ها با افزودن ال-کارنیتین به تیمار دارای روغن کتان بهبود معنی‌دار یافت (05/0>P). انواع مختلف روغن گیاهی و مکمل ال-کارنیتین اثر معنی‌داری بر کبد و سنگدان بلدرچین‌ها نداشت (05/0<P) و روغن کتان و آفتابگردان وزن قلب بلدرچین‌ها را افزایش داد. افزودن ال-کارنیتین به جیره دارای روغن آفتابگردان وزن نسبی کبد و قلب را کاهش داد. روغن آفتابگردان غلظت پروتئین کل و آلبومین سرم پرنده‌ها را افزایش داد. مکمل ال-کارنیتین مقدار پروتئین کل و گلوبولین سرم خون را نیز افزایش معنی‌دار داد (05/0>P). نتایج پژوهش حاضر نشان داد که منبع روغن جیره غذایی بر عملکرد بلدرچین ژاپنی اثر دارد و همچنین استفاده از منابع مختلف روغن گیاهی با مکمل ال-کارنیتین، فراسنجه‌های بیوشیمیایی خون بلدرچین‌های ژاپنی ماده را تحت تأثیر قرار داد.
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