Effect of various feed phosphates on biochemical indices of blood and mineral composition of bones in finishing pigs
2010
Dobrzanski, Z.,Wroclaw Univ. of Environmental and Life Sciences (Poland). Faculty of Biology and Animal Science | Pogoda-Sewerniak, K.,Wroclaw Univ. of Environmental and Life Sciences (Poland). Faculty of Biology and Animal Science | Dragan, S.,Wroclaw Medical Univ. (Poland). Faculty of Medicine | Korniewicz, D.,LNB POLAND Ltd., Kiszkowo (Poland) | Hoffmann, K.,Wroclaw Univ. of Technology (Poland). Faculty of Chemistry | Korniewicz, A.,Wroclaw Univ. of Environmental and Life Sciences (Poland). Faculty of Biology and Animal Science
The aim of this study was to evaluate the effect of three different chemical feed phosphates on the blood biochemical indicators and the content of main minerals of bones in finishing pigs. Over a period of 85 days of fattening, monocalcium, dicalcium and calcium-sodium phosphates were used. The feeding was based on standard mixtures of starter, grower and finisher type. Dicalcium phosphate was produced according to the new, pro-ecological technology based on phosphoric acid. The content of Ca, Na, P, solubility of P in citric acid, and the concentration of undesirable substances (As, Cd, F, Hg and Pb) were determined in feed phosphates. At the end of the fattening period, blood was collected from 36 pigs (12 from each group) and the following biochemical indicators were determined in the serum: enzymatic activity of aspartate aminotransferase, alanine aminotransferase, gamma-glutamyltransferase, creatine kinase, lactic dehydrogenase, lactic acid; the concentration of total protein, albumins, glucose, urea, creatinine, content of triglycerides, cholesterol and its high density and low density lipoproteins fractions, and mineral components concentration (Ca, Cl, Cu, Fe, K, Mg, Na, P, Zn). Basic macroelement content (Ca, Mg, P) was determined in the thigh bones from 30 pigs (10 from each group). Significant differences between groups were observed only for some biochemical indicators, i.e. creatine kinase, lactic dehydrogenase and lactic acid. The highest content of Ca, Mg and P was found in the bones of pigs supplemented with dicalcium phosphate.
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