Haematological, hormonal and biochemical blood parameters in lamb: Effect of age and blood sampling time
2009
Bórnez, R. | Linares, M.B. | Vergara, H.
This study examined the effect of blood sampling time (farm, transport, lairage) on welfare physiological indicators in two groups of different age/weight Manchega breed lambs (suckling vs light). Blood sampling time had a different effect on both types of lamb: In light lambs, there was an increase (P <0.001) in red blood cells (RBC), haemoglobin, hematocrit and urea after lairage; but adrenaline, glucose and creatinine increased after transport. In suckling lambs, there were higher values of cortisol and potassium on the farm, both glucose and sodium increased after transport while adrenaline did after lairage. In general, significant differences (P <0.001) were found between both types of lamb in the parameters analysed. Light lambs showed higher values of RBC, haemoglobin, hematocrit, adrenaline, noradrenalin, LDH, CK, sodium and lactate than younger animals in all blood sampling times. Only after lairage were urea and leucocytes lower (P <0.05) in suckling than in light lambs, while cortisol was higher on the farm and lower after lairage in younger animals.
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