Concentrations of Na, K, Ca in blood serum of sheep lambed in February and September
1999
Krajnicakova, M. | Bekeova, E. | Maracek, I. (Vyskumny Ustav Veterinarnej Mediciny, Kosice (Slovak Republic))
The study was aimed at the observation of the selected parameters of mineral homeostasis in Slovak Merino sheep lambed in February and September. Thirty ewes were included in this experiment and divided into two groups (n=15). The animals were kept on acommercial farm and fed in accordance with the standard defined for the above animals. Blood samples were collected from v.jugularis on days 1, 4, 7, 14, 17, 21, 25, and 34 post partum. Levels of sodium (Na), potassium (K), and calcium (Ca) were determined in blood serum using a spectrophotometer Atom Spek (Rang-Higler). The results of the observed parameters were evaluated by Student t-test. Significant evaluated parameters were compared to day 1 after parturition. When evaluating the sodium (Na) levels in ewes lambed in February, the lowest significant (P less than 0.05) concentrations were found on day 25 post partum. In the group of ewes lambed in September, a significant decrease was found on days 25 (P less than 0.05 and) and 17 (P less than 0.001), and on the remaining days (P less than 0.01). The potassium levels in blood serum from ewes lambed in February were lowest on day 25 and in ewes lambed in September, a significant decrease was recorded on days 4 and 14. On day 14 a significant decrease (P less than 0.05) was observed in the calcium concentrations in ewes lambed in September. There were significant inter-group differences (P less than 0.05) in sodium and calcium concentrations on day 7 and in potassium levels on day 4. The selected electrolytes during the physiological puerperium of ewes lambed in February and September are discussed
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