effects of different levels of ascorbic acid on some variables of juvenile great sturgeon (huso huso) immunity indices
نویسندگان
چکیده
effects of different levels of ascorbic acid consisting of 0, 100, 200, 400, 800 and 1600 mg/kg feed were examined on some immune variables of juvenile great sturgeon (huso huso) weighing 38 g at water temperature 20°c for 16 weeks. significant difference were observed in level of lysozyme in fish treated 400 and 1600 mg compared with control group 8 week post-treatment (p0.05) 16 weeks post-treatment. maximum level of leucocytes population was seen in fish treated 100 and 200 mg ascorbic acid 8 and 16 weeks post-treatment, respectively. maximum antibody titer was observed in fish fed diet 200mg ascorbic acid (p>0.05). it was no found any mortality in treatment groups after challenge with aeromonas hydrophola compared with 29.9% mortality in control group (p
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تحقیقات دامپزشکیجلد ۶۳، شماره ۴، صفحات ۳۳۷-۳۴۳
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