Hematological parameters necked carp and carp under vitamin and mineral supplements

  • O. Rudenko
Keywords: necked carp, carp, blood, hematological indices, leukocytes, hemoglobin, red blood cells

Abstract

Nowadays the quantitative needs of fat-soluble vitamins, and especially micronutrients Zinc, Iodine and Selenium, as well as their influence on hematological parameters in fish studied only in some species. Considerable interest has the studies of hematology profile in carp fish, particularly necked carp, scaly carp and carp, which is one of the original forms to create carp Lyubinskiy type and is used for carp-carp hybrids.The data of hematological and morphological studies in nacked carp and carp under action of fat-soluble vitamins and minerals Zinc, Iodine and Selenium in the composition of dietary supplement to their diet are presented in the article.Experiments conducted on two groups of fish (wild carp and necked carp ) age of two years, which by principle analogues were divided into two control and two experimental groups of 10 individuals in each. Fish kept in special trays under conditions of continuous closed system of water circulation. Fishes of control groups within 30 days were fed with granulated feed. Individual research groups were fed with a similar feed additives drug “Tryvit” in calculating the amount of 2,500 IU of vitamin A, 3333 IU of vitamin D3, vitamin E 1,7 mg and 5 mg/kg of potassium iodide, 40 mg/kg zinc sulphate and 0,3 mg/kg sodium selenite per kg of feed.The material for the study was blood a month after the fish feeding investigated mineral-vitamin complex. In blood samples were tested for hemoglobin, counted the number of red blood cells and hematocrit value and blood indices calculated according to generally accepted methods.Stated, that in case of feeding the carp with a specified additives increased a blood hemoglobin level in the fish, number of red blood cells, segmented neutrophils and monocytes and decreased the number of white blood cells and lymphocytes. It should be noted that these changes were more remarkable in the blood of carp, carp than nacked. In particular, the concentration of hemoglobin in the blood of carp was 7,5 % (p <0,05) higher number of leukocytes and 5,4 % (p <0,05) compared to controls. This data suggests a positive effect of vitamin and mineral supplements for an oxygen transport and blood immune function in fish, and especially in carp.

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Published
2017-07-07
Section
Agricultural sciences (animal husbandry)