تاثیر استفاده متناوب از غذای کنسانتره و غذای زنده شامل: آرتمیا، دافنی و لارو شیرونومید بر شاخص های رشد و تولیدمثل در ماهی گوپی (Poecillia reticulata)

نوع مقاله : تغذیه

نویسندگان

گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

کلیدواژه‌ها


عنوان مقاله [English]

Effect of different feeding frequency by pellet and live foods containing Artemia, Daphnia and Chironomid larvae on growth and reproductive indeces in Guppy (Poecillia reticulata)

نویسندگان [English]

  • Mohammad Sudagar
  • Fatemeh Alamshahi
  • Mojgan Bolhasani
  • Sepideh Firuzbakhsh
Department of Fisheries, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
چکیده [English]

This  experiment  was  conducted  to  evaluate  the  effect  of  different  feeding  frequency  of guppy  (Poecillia  reticulata)  by  pellet  and  live  foods  containing Artemia, Daphnia  and Chironomid larvae on their reproductive and growth parameters. Fish were divided randomly into  10  group  (1 -10)  and  Three  replicate  tanks  were  used  for  each  group  with  a  total  of  10 fish stocked in each tank. After adaptation, fish fed by 10 diets (1-10). Results showed that the highest significant final weight, larvae survival (%), SGR, daily growth (%), body weight gain (%)  and  condition  factor  were  observed  in  group  1  (one  day  feeding  by  pellet  and  one  day feeding  by Artemia)  (P<0.05).  The  lowest  final  weight  was  recorded  in  group  5  (two  days feeding by pellet and one day feeding by Daphnia). Moreover, the results of the final weight showed  no  significant  difference  among  group  3  (three  days feeding  by  pellet  and  one  day feeding by Artemia), 5, 6 (three days feeding by pellet and one day feeding by Daphnia) and 7 (one day feeding by pellet and one day feeding by Chironomid larvae) (P>0.05). Survival rate of larvae was significantly (P<0.05) lower in group 8 (two days feeding by pellet and one day feeding by Chironomid larvae). Collectively, this study showed that reproductive and growth performance of Guppy can be improved by feeding live food, especially Artemia.

کلیدواژه‌ها [English]

  • Guppy
  • Live food
  • pellet food
  • Reproductive indeces
  • Growth indece