| Abstrakt: |
The aim of the present study was to evaluate the values of some blood parameters – RBC, Hct, Hgb, MCHC, MCH and MCV of Ile-de-France sheep with different basal hematocrit levels according to their response to moderate hypoxia (with an altitude difference of 1000 m). The experiment was conducted at the „Petrohan― experimental base of the IASKostinbrod for 42 days after the sheep were transported there. Sheep (age 1.5- 7.5 years) were divided into three groups (n=8) according to the hematocrit level: low (LHct) − 19.7-27.9%), high (HHct) − 32, 0-36.9% and medium (MHct) − 28.3- 29.8%. Blood samples were collected by jugular venipuncture before transport and on days 7, 20 and 42 after transport. Blood analysis was performed with a 5-Part-Diff Automated Hematology Analyzer. The highly reliable between-group differences in basal hematocrit levels remained unchanged over the 42-day acclimation period. The same differences were observed in hemoglobin and red blood cell count; There was a significant increase in hematocrit and hemoglobin levels at day 20 in sheep with low hematocrit relative to basal levels (P<0.05) and at day 42 in sheep with low hematocrit relative to basal levels and at day 7 (P<0.05 ); There were no significant differences both between and within groups for MCH and MCV; However, for the MCHC, there was an inverse and significant difference between the groups with high and low hematocrit at 7, 20 and 42 days (P<0.05), which is an indication of a specific adaptive response of sheep with low hematocrit through increased synthesis of hemoglobin. [ABSTRACT FROM AUTHOR] |
