نوع مقاله : تغذیه
نویسندگان
دانشگاه گیلان, دانشکده منابع طبیعی صومعه سرا, گروه شیلات, ایران,
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Some supplements like kaolin accelerate growth and survival of animals; hence this additive was trialed on Rutililus frissi kutum. Six-hundred advanced fry fishes with average weight of (0.7 ± 0.062 g) were randomly distributed between 15 tanks of 500 L capacity. Five diets containing 0.5, 1, 1.5, 2 and 2.5 % kaolin with iso-nitrogenous (35%) in triplicate group were considered. With increasing kaolin to 2%, growth and food efficiency were improved and was significant with other treatments (P< 0.05).Treatments 1 and 5 (0.5 and 2.5 percent) with minimum and maximum levels of kaolin were shown unimprovement in growth performances (P<0.05). Carcass chemical compositions of kaolin in different levels were not shown any significant different among treatments; however with increasing kaolin to 2 and 2.5%, total ash contents were increased (P< 0.05).
کلیدواژهها [English]
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