اثر تریپتوفان جیره بر روی عملکرد رشد و ترکیب لاشه بچه ماهیان انگشت قد کلمه (Rutilus rutilus caspicus)

نوع مقاله : فیزیولوژی (جانوری)

نویسندگان

دانشگاه علوم کشاورزی و منابع طبیعی گرگان, گروه شیلات, ایران

کلیدواژه‌ها


عنوان مقاله [English]

The role of dietarytryptophan on the growth performance and carcass synthesis and salinity stress survival of Caspian Roach (Rutilus rutilus caspicus) fingerlings

نویسندگان [English]

  • Sajjad Fattahi
  • Seyed Abbas Hosseini
Gorgan University of Agricultural Sciences and Natural Resources, Department of Fisheries, Iran
چکیده [English]

This investigation aims to evaluate the role of dietary tryptophan on the growth performance carcass synthesis of fingerlings of Caspian Roach (Rutilus rutilus caspicus). Fingerlings (mean weight: 1.91 ±0.01 g and total length of 6.21±0.07 after adaptation were divided to 3 groups (0.25, 0.5 % of diet and one control (0%)). Mean weight and total length difference of treatments were not significant. Carcass synthesis (without head and skin) and body composition showed significant difference between treatments (p<0.05). Lipid content of body decreased significantly as tryptophan increased (p<0.05). Effect on food intake in higher vertebrata and fish is a result of tryptophan which increases serotonin levels of brain and can effect on weight gain and also can increase protein content of carcass and decrease lipid content in Roach.

کلیدواژه‌ها [English]

  • tryptophan
  • Rutilus rutilus caspicus
  • Carcass Synthesis
  • growth performance