کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2422984 1552902 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of melamine on growth performance and skin color of darkbarbel catfish (Pelteobagrus vachelli)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Effects of melamine on growth performance and skin color of darkbarbel catfish (Pelteobagrus vachelli)
چکیده انگلیسی

A feeding experiment was conducted to investigate the effects of melamine (MEL) on growth performance and skin color of darkbarbel catfish (Pelteobagrus vachelli). Artificial diets with 0.2, 0.5 and 1% MEL supplementation were fed to juvenile darkbarbel catfish (initial weight 14.30 ± 0.10 g) for eight weeks, and MEL-nonsupplemented diet was used as a control. The results indicated that specific growth rate (SGR) of darkbarbel catfish fed the diets with MEL supplementation was significantly lower than that of the control group (P < 0.05). Melanin content in dorsal skin decreased with increasing MEL supplementation. Dorsal skin melanin content of darkbarbel catfish fed the diets with 0.5 and 1% MEL supplementation was significantly lower than that of the control group (P < 0.05). Lightness (CIE [1976], L* tristimuli value) of dorsal skin increased with increasing supplementation of MEL. L* of darkbarbel catfish fed the diet with 0.5% and 1% MEL was significantly higher than the control group (P < 0.05). However, tyrosinase activity of dorsal skin was not significantly affected by dietary MEL (P > 0.05). These results indicated that dietary MEL could decrease melanin content of darkbarbel catfish dorsal skin, and therefore increase its lightness. During this procedure, tyrosinase activity of dorsal skin was not significantly affected.


► Specific growth rate (SGR) of darkbarbel catfish fed the diets with melamine (MEL) supplementation was significantly lower than that of the control group.
► Dietary MEL could significantly decrease melanin content in darkbarbel catfish dorsal skin, and therefore increased its lightness.
► However, during this process, tyrosinase activity of the dorsal skin was not significantly affected.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 320, Issues 1–2, 19 October 2011, Pages 142–146
نویسندگان
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