Author/Authors :
صالحي ح. نويسنده Department of Horticultural Science, College of Agriculture, Shiraz University, Shiraz Salehi .H , اكبري پ نويسنده Department of Marine Sciences, Chabahar Maritime University, Fisheries group, Chabahar, Iran Akbary P , كاكولكي ش نويسنده Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran Kakoolak SH , ذريه زهرا م ج نويسنده Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran Zorriehzahra M J , سپه داري الف نويسنده Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran Sepahdari A , محرابي م ر نويسنده Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran Mehrabi M R , جدگال س نويسنده Offshore Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Chabahar, Iran Jadgal S
Abstract :
This experiment was conducted to evaluate the
efficacy of different levels of Echinacea
(Echinacea purpurea) methanol extract on the
growth performances (final weight (FW), daily
growth ratio (DGR), feed conversion rate
(FCR), voluntary feed intake (VFI) and protein
efficiency ratio (PER) and some of
hematological parameters (hemoglobin (Hb),
hematocrit (Hct), red blood cell (RBC) and
white blood cell (WBC) of grey mullet (Mugil
cephalus). The experiment was conducted in a
completely randomized design with 360 of
larvae (with average weight of 0.75±0.03g) in
4 treatments: control group
without using Echinacea extract, an another
groups (treatment 2, 3 and 4) the amounts of
this extract were 50,100 and 200 g/kg food.
The highest FW (4.22±0.11g), DGI
(1.72±0.50%) and the lowest FCR (0.95±0.05)
and VFI (1.77±0.05%), were observed in
treatment 4. But treatment 4 in all of these
growth parameters did not show a significant
difference compared with treatment 3 (P >
0.05). After 60 days, treatments 3 and 4,
showed significantly higher RBC, WBC, Hb
and Hct than those fed the control diet. Finally,
the present results suggest that diet containing
100 and 200 g kg-1 extract could improve
growth and hematological parameter of M.
cephalus.
