Effects of Copper Sulfate and Arginine Supplements on Performance and Carcass Traits in Broiler Chickens Fed with Canola Meal Based Diet

محورهای موضوعی : Camel

ص. عظیمی ‌یوالاری ¹ , پ. فرهومند ² , پ. باغبان کنعانی ³ , ب. حسین‌تبار قاسم‌آباد ⁴

1 - Department of Animal Science, Faculty of Agriculture, Urmia University, Urmia, Iran
2 - Department of Animal Science, Faculty of Agriculture, Urmia University, Urmia, Iran
3 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
4 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

تاریخ دریافت : 1395/11/21 تاریخ پذیرش : 1396/02/10 تاریخ انتشار : 1396/09/10

کلید واژه: Broiler, copper sulfate, glucosinolate, arginine, abdominal fat, cecal, duodenum,

چکیده مقاله :

The aim of this study was to evaluate the effects of copper (Cu) sulfate (0, 125 and 250 mg/kg), arginine (Arg) supplements (0, 0.1 and 0.2%) and glucosinolate content on performance and carcass traits in broiler chickens fed with canola meal based diet. During a three-week experimental period (22-42 d), 405 male broilers were used in completely randomized design with a 3 × 3 factorial experiment. Average daily gain and feed conversion ratio were significantly affected (P<0.05) by 250 mg/kg copper treatment. Canola meal treatments with Cu (P<0.01) and addition of 0.2% Arg (P<0.05) significantly increased the proportion of breast muscle. Also, the relative thigh weight was significantly affected by 250 mg/kg copper treatment and 0.2% arginine supplementation (P<0.05). The 0.2% Arg supplementation significantly decreased the proportion of abdominal fat (P<0.01), lung weight (P<0.05) and conversely increased the proportion of duodenum (P<0.05) and jejunum (P<0.01). Cecal relative weight was the lowest (P<0.05) in broilers fed diets based on canola meal treated with 250 mg/kg Cu. In conclusion, the results of this study show that treatments of canola meal with copper sulfate could alleviate adverse effects of glucosinolate on broilers performance. Moreover, these findings suggest that addition of 0.2% Arg able to change energy partitioning toward protein deposition and reduced abdominal fat pads.

چکیده انگلیسی:

هدف از این آزمایش بررسی اثرات سولفات مس (0، 125 و 250 میلی‌گرم در کیلو‌گرم)، مکمل آرژنین (0، 1/0 و 2/0 درصد) و محتوی گلوکوزینولات بر عملکرد و خصوصیات لاشه در جوجه­های گوشتی تغذیه شده با جیره­های بر پایه کنجاله کانولا بود. آزمایش به شکل آزمون فاکتوریل 3 × 3 در قالب طرح کاملاً تصادفی با 405 قطعه جوجه­ گوشتی نر در یک دوره­ 3 هفته­ای (42-22 روزگی) انجام گرفت. میانگین افزایش وزن بدن و ضریب تبدیل خوراک تحت تأثیر سطح 250 میلی­گرم در کیلو­گرم مس قرار گرفت (05/0>P). عمل­آوری کنجاله کانولا با مس (01/0>P) و افزودن سطح 2/0 درصد آرژنین (05/0>P) به جیره به طور معنی­داری وزن سینه را افزایش داد. همچنین، وزن نسبی ران نیز به طور معنی­داری تحت تأثیر سطح 250 میلی­گرم در کیلوگرم مس و 2/0 درصد آرژنین قرار گرفت (05/0>P). مکمل­سازی سطح 2/0 درصد آرژنین باعث کاهش چربی حفره شکمی (01/0>P)، وزن شش­ها (05/0>P) و بالعکس افزایش وزن دوازدهه (05/0>P) و ژژنوم (01/0>P) گردید. پایین­ترین وزن سکوم در جوجه­های تغذیه شده با جیره­های بر پایه کنجاله کانولا عمل­آوری شده با سطح 250 میلی­گرم در کیلو­گرم مس مشاهده شد (05/0>P). به طور کلی نتایج این آزمایش نشان داد که عمل‌آوری کنجاله کانولا با مس می­تواند باعث کاهش اثرات مضر گلوکوزینولات­ها بر عملکرد جوجه­های گوشتی گردد. علاوه بر این، افزودن سطح 2/0 درصد آرژنین می­تواند باعث تغییر تقسیم­بندی انرژی به سمت ذخیره پروتئین و کاهش چربی محوطه بطنی گردد.

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