Effect of selected factors on mineral parameters in plasma of cows

Abstract

Abstract. Objective of this paper was to evaluate the effects of herd, exploitation, management system, and season on blood macro and micro-minerals in cows kept in a mountainous region. The cows were kept in four herds, two exploitation manners, and two systems. Concentrations of calcium (Ca), phosphorus (P) were significantly differed in the factors of herd and exploitation only, levels of copper (Cu) and zinc (Zn) showed differences in all factors. Beef animals had higher level of P than dairy exploitation (1.59 mg.L−1 vs. 1.42 mg.L−1; P<0.01) and lower level of Ca (2.10 mg.L−1 vs. 2.33 mg.L−1; P<0.001). Higher concentrations of Cu and Zn were recorded in dairy exploitation (0.91 mg.L−1, 1.17 mg.L−1) versus beef exploitation (0.67 mg.L−1, 0.86 mg.L−1) (P<0.001). We found higher concentrations in Cu (0.84 mg.L−1 vs. 0.62 mg.L−1 , P<0.001) and Zn (1.06 mg.L−1 vs. 0.96 mg.L−1, P<0.05) in non-ecological system. There were higher values of Cu and Zn in fall than spring (0.90 mg.L−1 and 1.10 mg.L−1 vs. 0.67 mg.L−1 and 0.93 mg.L−1) (P<0.001).

Assessment of Blood Metabolites Disorders and Related Pathological Risk Factors in Cows of Constantine Region, Algeria

“…Despite these results, the hyperphosphatemia observed in the same DCs group (n=152) did not affect the global Ca: P ratio (1.28) which was within normality range. Soch et al (2010) report that mineral balance is influenced of breeds and especially by the feeding during year. Thrall et al (2012) show that hyperphosphatemia has nearly constant association with renal failure, while moderate hypocalcemia is more common with chronic than acute renal failure in cattle.…”