Concentração hepática de cobalto em caprinos e ovinos criados no Sertão pernambucano

Abstract

This study aimed to assess liver concentrations of cobalt (Co) in goats and sheep in the backlands of Pernambuco. For this we considered the seasonality factors, species and sex. The liver samples were obtained from animals slaughtered in the towns of Granite, and Araripina Ouricuri. Randomly selected a total of 206 animals, 77 goats (35 males and 42 females) and 129 sheep (86 males and 43 females). He was chosen the final third of each seasonal period for the completion of the collections. The samples went through the process of kiln drying, weighing, microwave wet digestion model MarsXpress - EMC Technology Inside and subsequent analysis by atomic absorption spectrometry coupled with mass (ICO-OES). It was observed that liver concentrations of Co in goats and sheep reared and slaughtered in the backlands of Pernambuco is at appropriate levels. Reference data for sheep and goats showed, respectively, means and standard deviations of the liver concentrations Co: sheep (0.59 ± 0.07 mg / kg) and goats (0.63 ± 0.08 mg / kg) ; males (0.56 ± 0.07 mg / kg) and females (0.66 ± 0.07 mg / kg), dry season (0.61 ± 0.08 mg / kg) and rainy season (0.61 ± 0.07 mg / kg). It was observed that the mean concentrations of Co for sheep and goats were not affected by seasonal period (P <0.9861), species (P <0.7326) and sex (P> .3805). The data are used to guide diagnostic studies on these species bred in Cobalt Hinterland Pernambucano, however we stress that more research is needed on the subject, since the region is known for presenting animals with various deficiencies of macro and trace minerals.