نویسندگان
1 گروه علوم دامی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد ورامین- پیشوا
2 گروه زیست شناسی، دانشکده علوم زیستی، دانشگاه آزاد اسلامی واحد ورامین- پیشوا
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
This study aimed to evaluate the effects of safflower on skin color and rainbow trout carcasses were implemented. For this purpose was researched a total of 240 fishes ranged in weight from 230±10 gr as a completely randomized design with 4 treatments, 3 replicates and 20 pieces per replicate for 45 days in Khojier station research on June to August 2013 .Diets were included a control group, five, ten and fifteen percent of safflower. To perform for colorimetric tests of rainbow trout skin and meat 2 fishes at day 45 randomly caught and a piece of the meat with skin was removed and after 24 hours of freezing, L*(brightness), a*(redness) and b*(yellowness) parameters were evaluated by Minolta CR-400 colorimetric device. In the Colorimetric Results showed that between dorsal muscle parameters L *, a * and b * treatments on compared to control were non-significant difference) P>0/05). The skin colorimetric showed brightness indicator a significant difference in 10% of safflower treatment compared with other treatments (P≤0/05). In conjunction with redness and yellowness indices, treated with 15% safflower showed non-significant increase and decrease, respectively, compared to the control group (P>0/05). This experiment showed that the use of different levels of safflower can be effective in changing the skin color of the rainbow trout.
کلیدواژهها [English]