3883

3666

كارشناسي ارشد

علوم دامي

اصفهان :دانشگاه صنعتي اصفهان ،دانشكده كشاورزي

1386

يازده، 101،[II] ص: مصور، جدول، نمودار

ص، ع به: فارسي و انگليسي

جواد پور رضا

حميد رضا رحماني

8/2/87

محمد خوروش، علي نصير پور

مهندسي كشاورزي

ID3666

به فارسي و انگليسي: قابل روئيت در نسخه ديجيتال

Abstract Selenium is an essential micro element in vertebrates nutrition including birds There areorganic and inorganic forms of selenium which the latter form Sodium Selenite SS iswidely used in broiler diets Organic form of selenium Selenomethinin SM is differentin terms of absorption metabolism and storage An experiment with a complete randomdesign with a 2 3 2 factorial arrangement and 3 replicates per each treatment wasconducted to compare organic and inorganic selenium SS Vs SM at three differentlevels of diet energy by adding 3 different levels of soybean oil 0 2 5 and 5 percent and two levels of vitamin E normal and 200 IU on male broiler performance breastyield carcass traits drip loss and thyroid hormones 900 Ross308 mail broilers were placed in 36 pens 25 chicks per pen An increase indiet energy caused higher body weight BW and lower feed conversion ratio FCR butdid not affect daily feed intake DFI Vitamin E level of 200 IU increased FCR anddecreased BW in comparison with the control surprisingly Se source significantlyincreased DFI in starter diets BW increased smoothly by SM comparing with SSalthough it was not significant FCR was not affected by Se source Breast yield was not affected by Se source or diet energy but significantly improved byvitamin E level Se source and diet energy level had a significant interaction on drip loss T3 and T4 T3 ratio were significantly affected by Se source and energy level interaction

جواد پور رضا

حميد رضا رحماني

محمد خوروش، علي نصير پور