نوع مقاله : تغذیه
نویسندگان
1 دانشگاه ارومیه, دانشکده منابع طبیعی, گروه شیلات, ایران
2 دانشگاه ارومیه, پژوهشکده آرتمیا و جانوران آبزی, ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The purpose of this study was to investigate the effects of replacing fish meal with high levels of vegetable protein sources on growth indices and activity of digestive enzymes (total protease, lipase and alpha-amylase) in pyloric wastes of rainbow trout. A total of 700 fish with a mean weight of 15 + 2 + 2 g were selected and were housed in 12 tanks (300 liters) with a density of 50 tanks per tank and fed the experimental diets for 60 days. Vegetable protein sources were used at 3 levels of 40, 70 and 100% fish meal replacement with a control group. Results showed that replacement of 40% dietary fish meal with plant sources had significant negative effects on growth indices (final weight 2.0 + -69.0), fish nutritional efficiency and digestive enzyme activity compared to control (final weight + 2.0+). (-71.1 g) (p >0.05).
کلیدواژهها [English]
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