Abstract
Availability of easily accessible methods and apparatus for establishing the essential parameters that indicate physiological status of animals at different stages of productive life may have greater application in daily controls on smaller farms in order to remove, in time, the causes and consequences of disturbances in the reproductive and productive cycle of cows. Two groups were formed, Domestic spotted cattle and Red Holstein, and in the blood serum from tested animals following parameters were determined: glucose, urea, total bilirubin, aspartate aminotransferase (AST), glutamate dehydrogenase (GLDH), and inorganic phosphorus. Determined glucose concentration of 2,97 mmol/L in redholstein cows is within physiological range, while in domestic spotted cows it is in hypoglycemia (1,14 mmol/L). Statistical significance also demonstrate derived concentrations in different genotypes of blood urea (3,42 : 4,90 mmol/L) and GLDH (12,19 : 5,76 IU/L).Differences in concentrations of certain parameters of the examined blood serum, and variations amplitude that occur between groups, as well as statistical analysis of results and the test of significance, just confirm the hypothesis that for each animal breed, reference values related to narrow distribution area of growing should be established.
Highlights
IntroductionThere is an increasing number of farmers who grow five or more cows
In recent years, there was a significant restructuring of our livestock production
Determined glucose concentration of 2,97 mmol/L in redholstein cows is within physiological range, while in domestic spotted cows it is in hypoglycemia and derived glucose difference of 1,83 mmol/L in two different genotypes is statistically highly significant
Summary
There is an increasing number of farmers who grow five or more cows. This tendency to increase milk production, often results in exclusion of cows from the herd, due to health and fertility disorders, which produces significant financial burdens. Prolongation of the conception and long service periods, caused by physiological disorder by one, and negative consequences arising from the genetic inferiority of their herds and low milk production, on the other side, there is a small possibility for improvement of the selection process. Given that the fertility traits are of very complex nature Lotthammer (1991) and Williamson (1986) state that the therapeutic and prophylactic measures have to be applied to the entire herd rather than to individuals in a herd, namely, the herd is a patient. Since sick animals are mostly under therapy, there is little time remaining for the prophylaxis and preventive measures, which are certainly cheaper and more efficient compared to the treatment of sick animals
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