Effect of Various Feed Phosphates on Biochemical Indices of Blood and Mineral Composition of Bones in Finishing Pigs

摘要

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 pigsOver a period of 85 days of fattening monocalcium (MCP Finnish product) dicalcium (DCP Polish product) and calcium sodium (CSP Russian product) phosphates were used in fattener feeding 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 Pin citric acid and the concentration of undesirable substances (As Cd F Hg and Pb) were determined in feed phosphatesAt the end of the fattening period blood was collected from 36 finishing pigs (12 from each group) and the following biochemical indicators were determined in the scrum enzymatic activity of aspartate aminotransferase (AST) alanine aminotransferase (ALT) gamma-glutamyltransferase (GGT) creatine kinase (CK) lactic dehydrogenase (LDH) lactic acid (LA) the concentration of total protein albumins glucose urea creatinine content of triglycerides cholesterol and its high density lipoproteins (HDL) and low density lipoproteins (LDL) 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 (p < 0 05) between groups were observed only in some biochemical indicators i e CK LDH and LA The highest content of Ca Mg and P was found in the bones of pigs fed mixtures supplemented with DCP which indicates improved bioavailability of main macroelements from that phosphate