Abstract
Selenium Concentrations in Serum and its Outputs in Milk and Urine from Grazing Jersey Cow Herds Found in Two Dairy Production Regions from Costa Rica
Highlights
Blood samples were taken from the coccygeal vessels, milk samples were collected individually during milking from the milk yield meter container and urine was obtained using rubbing stimulation technique
Like other the study aimed to evaluate Se concentrations in three minerals, Se must be obtained from dietary sources, as such, different matrices of Jersey herds the mineral intake will depend on several factors including from two separate and relevant productive dairy regions from local availability of the mineral and the type of feedingstuffs[1,2] our country
Analyses were carried out intending to assess association between the Se concentrations by the flow injection metal hydride atomic absorption found in the three different types of samples collected and spectrophotometry (FI-MH-AAS) approach
Summary
Blood samples were taken from the coccygeal vessels, milk samples were collected individually during milking from the milk yield meter container and urine was obtained using rubbing stimulation technique. Milk and urine Se concentration for cows from Cartago and Zarcero were 44.13 (SD = 27.68), 30.94 (SD = 20.13), 78.37 (SD = 60.14) μg Se LG1 and 19.19 (SD = 10.59), 21.82 (SD = 19.07), 14.72 (SD = 6.50) μg Se LG1, respectively. The average GSH-Px concentration in serum was 73.74 and 33.82 for Cartago and Zarcero cows, respectively.
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