Methodological approach to the tensiometrical analysis of the blood serum samples of Duroc pigs

Abstract

Abstract The aim of this work was to compare the dynamic surface tension (DST) with biochemical parameters of the blood serum of Duroc pigs (BSDP). BSDP samples were taken after various times of pig fattening: 65 days (Group 1), 72 days (Group 2), 84-89 days (Group 3), 91-100 days (Group 4). Our approach is consisting in the BSDP-DST-measurement using all four modes of BPA-tensiometer: M1) “Standard experiment”; M2) “Experiment at constant lifetime”; M3) “Accelerated experiment”; M4) “Quick scan”. Here, we have worked out all the modes mentioned above for determining the BSDP tensiometric parameters. The BSDP-DST parameters obtained for groups 3 and 4 (84-89 and 91-101 fattening days, respectively) were very high and close in numbers. (from 73.4-74.6 mN/m for STo, to 58.1-60.5 mN/m for STm, respectively). These BSDP-DST parameters were significantly higher (7-13%) at extremely low interface “life-times” (0.01-0.1 s), as compared to those for groups 1 and 2 (65 and 72 fattening days, respectively). In contrast, the BSDP-DST parameters obtained for groups 1 and 2 were low (from 66.1-71.4 mN/m for STo, to 56.9-57.9 mN/m for STm, respectively). These data (in combination with other physical-chemical methods) can be used for the fundamental data set and monitoring the pig growth, health, productivity, etc.