Niveles séricos de magnesio calcio y fósforo en hembras bovinas de carne (Bos indicus),en un establecimiento de San Borja, Beni, Bolivia

Abstract

Macrominerals are essential for the health and productive performance of cows. In order to establish the reference ranges of serum Mg, P and Ca, in selected beef bovine females (Bos indicus), in San Borja, Beni, Bolivia, by age group and reproductive condition, 173 blood samples were taken. The serum analysis of Ca and Mg was determined by the end-point colorimetric method, and the P by the end-point ultraviolet method, the chemical analyzer STAT FAX 1908 PLUS was used, accuracy quality control was applied. The type of research was observational cross-sectional. Statistical analysis was performed using Microsoft Excel 2010 and InfoStat 2020. The data were analyzed with measures of central tendency, kurtosis and asymmetry coefficient, Gaussian bell and ANVA with 95 % reliability. The values of Ca, Mg and P show an almost normal Gauss curve. For Mg, a single range of 1.5 to 3.3 mg dL-1 is declared (p>0.05). In P, two range values are declared per age group, (p<0.05), 4.5 to 8.6 mg dL-1 for bovine females from 2 to 4 years of age and 3.9 to 8.2 mg dL-1 from 5 to 12 years of age. For Ca, a single range (p>0.05) of 7.4 to 12.6 mg dL-1 is declared. These results provide useful local parameters for the evaluation of mineral status, diagnosis of subclinical deficiencies, reliable interpretations and nutritional management of cattle in the region.