Document Type : (original research)
Authors
1
Animal Science Research Institute of Iran, Agricultural Research, Education and Extension Organization, Karaj, Iran
2
Persian Gulf and Oman Sea Ecology Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Extension Organization, Bandar Abbas, Iran
3
Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
4
Persian Gulf Mollusks Research Station, Persian Gulf and Oman Sea Ecology Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Extension Organization, Bandar-e-Lengeh, Iran
5
Iranian Shrimp Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Bushehr, Iran
10.22034/aej.2022.340371.2802
Abstract
The effects of citric acid on the growth and blood indices of goldfish fry (Carassius auratus) were examined in a 60-day period. The goldfish fries (with initial weight of 7.10±0.16 g) were randomly categorized into four experimental treatments with three replications (25 fish/tank). The treatments included a control three groups of 1, 2, and 3 g citric acid per each kilogram of food ration. The results indicated that the growth parameters: The final weight, weight increase, specific growth rate, and condition factor in the citric acid groups had a significant increase compared to the control group (P<0.05). In addition, blood indices in the experimental treatment indicated that the red blood cell count and hemoglobin and hematocrit levels in the citric acid treatments had a significant increase compared to the control group (P<0.05). In general, adding citric acid at 2 g/kg of the diet of goldfish fry improved the growth parameters and blood indices.
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