Blood metaBolic profile and some of hormones concentration in ewes during different physiological status

AntunoviC, Z., J. novoSELEC, H. SAuERWEin, M. SpERAndA, M. vEGARA and v. pAviC, 2011. Blood metabolic profile and some of hormones concentration in ewes during different physiological status. Bulg. J. Agric. Sci., 17: 687-695 The aim of this paper is to determine the influence of physiological status on blood metabolic profile and some of hormones concentration in the blood of ewes. Investigations were carried out on 45 Tsigai ewes (15 pregnant ewes on the 10th day prior to lambing, 15 lactating ewes on the 20th day of the lactation and 15 non-pregnant ewes) during winter feeding season. The ewes were average 3 years old and healthy. Ewes were fed meadow hay and 300 g of feed mixture. Higher concentrations of Cl, urea, total bilirubin, AST and GGT activities were determined in the blood ewes in lactation compared to high pregnant and non pregnant ewes. The opposite trend was observed for concentration glucose, hemoglobin, T3, RBC and ALT activity. In the blood pregnant ewes were determined lower concentrations of glucose and urea in relation to non-pregnant ewes and higher concentrations of total protein, albumin, LDL-cholesterol, hematocrit, leptin and insulin in relation to the ewes in lactation. In the ewe’s blood in lactation were determined higher concentrations of K, a number of PLT and increased LDH activity in relation to pregnant ewes. Higher concentrations of triglycerides and lower PLT were determined in blood pregnant ewes in relation to non-pregnant ewes. Changes in concentrations of biochemical indicators (glucose, cholesterol, triglycerides, urea), T3, leptin and insulin levels indicate an energy deficiency of ewes in early lactation. The results obtained blood indicators point out justification of the blood metabolic profile in the assessment of food status ewes and ensuring good health in very demanding physiological states high pregnancy