Effect of phytogenic feed additive (Digestarom PEP) on growth performance, hematological parameters, immunity system, and carcass quality of giant gourami (Osphronemus goramy)

Karimifar, Behnam; Abdolhay, Hossein; Mohamadizadeh, Flora; Shamsaie Mehrgan, Mehdi; Hosseini Shekarabi, Seyed Pezhman

doi:10.22092/ijfs.2022.350692.0

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	Effect of phytogenic feed additive (Digestarom PEP) on growth performance, hematological parameters, immunity system, and carcass quality of giant gourami (Osphronemus goramy)
Iranian Journal of Fisheries Sciences
دوره 21، شماره 1، فروردین 2022، صفحه 220-234 اصل مقاله (387.21 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22092/ijfs.2022.350692.0
نویسندگان
Behnam Karimifar¹؛ Hossein Abdolhay^* ²؛ Flora Mohamadizadeh³؛ Mehdi Shamsaie Mehrgan¹؛ Seyed Pezhman Hosseini Shekarabi¹
¹Department of Fisheries Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
²Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
³Department of Fisheries Science, Bandarabas Branch, Islamic Azad University, Hormozgan, Iran
چکیده
There is a growing interest among researchers to use herbal supplementations in aquafeed to enhance growth performance as well as the immunity systems of aquatic animals. Therefore, this study was conducted to investigate the effect of phytogenic feed additive (Digestarom PEP) on growth performance, chemical composition, hematological and immune responses of giant gourami (Osphronemus goramy). For this purpose, giant gourami with the average weight 3.1±0.2 g with selective experimental treatments included, control (0 g Digestarom PEP/kg), T1 PEP 0.5% (5 g Digestarom PEP/kg), T2 PEP 1% (10 g Digestarom PEP/kg), and T3 PEP 1.5% (15 g Digestarom PEP/kg) were feed for 60 days. Based on the growth performance results, a significant difference was observed in the specific growth rate (3.19 %/day), weight gain (18.47 g), and feed conversion factor (0.78) of PEP 1.5% treatment compared to other treatments (p<0.05). Based on the hematological results, there was a significant difference in the red and white blood cells numbers, neutrophil and monocyte percentages, and hematocrit level in PEP 1.5% treatment compared to other treatments (p <0.05). The levels of immune indices including lysozyme activity, IgM, complement proteins (C3 and C4) were significantly increased (p<0.05) in PEP 1.5% treatment compared to others, especially the control one. Also, there was a significant difference in the crude protein (15.37%) and lipid (3.87%) contents among PEP 1% and PEP 1.5% compared to control and PEP 0.5% (p<0.05). In conclusion, the results of this study showed that dietary administration of Digestrom™ PEP, especially at 1.5% concentration, could improve growth performance and innate immune responses of giant gourami.
کلیدواژه‌ها
Digestrom PEP؛ Osphronemus goramy؛ Growth promoter؛ Immunostimulant

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Effect of phytogenic feed additive (Digestarom PEP) on growth performance, hematological parameters, immunity system, and carcass quality of giant gourami (Osphronemus goramy)