Nowadays, lipidology is a rapidly advancing branch of biochemistry. Achievements of the branch are widely applied to biology, medicine and livestock-breeding. Most lipids are several molecules bound with each other and not referred to highly polymeric substances.
Lipids refer to structural components of cells; they can combine with other substances to produce composite cellular structures. They perform protecting, transporting, regulating functions and play a big part in growth, thermoregulation, adipopexis, and energy exchange in the organism. Lipids deposit energy in a cell. They are involved in energy transformations in mitochondria, hormone and immune processes, cell differentiation, regulation of gene activity and cell cycle.
Lipids can be predecessors of the synthesis of some vitamins and hormones, particularly those of local action. Membrane enzymes activity correlates to the lipids contained in the membranes.
Lipids are the most important components of membranes and other interface surfaces between hydrophobic intracellular regions and liquids. Biological functions of membranes correlate to the ratio of separate structural lipids available in the membranes. Different animals have ontogenetic peculiarities of lipid exchange.
An experiment was carried out on the SSF experimental training farm «Tulinskoye» of Novosibirsk State Agrarian University. Precocious Meat pigs of Novosibirsk breeding (SM-1) were the objects to examine. They are well adapted to local natural and climatic conditions. The animals of control fattening and aged 6 months were examined. The offspring from six Precocious Meat boars (Svetly 1704, Sovet 1618, Sayan 225, Som 69, Sobol 139, and Signal 1440) were under the control in the experiment. The pigs were kept following the technology for complexes and farms.
The amount of general lipids was determined in the blood serum of six-month SM-1 pigs different in genotypes. Statistical processing of the data obtained was done with the package of software MS Excel and Statistica 6.
According to the experimental data the differences in the amount of general lipids in the blood serum of the progenies from genotypically different pigs was identified. The data obtained showed the greatest difference in the changes of the general lipids content in blood between the progenies of Signal 1440 and Sovet 1618. The difference made up 33,64 % (p < 0,001). The depth of fat in the gilts of Signal 1440 was bigger than that in the same aged Sovet 1618 because fat depth directly correlates to the concentration of lipids in blood serum. The examinations carried out allow to suggest that the parameters of lipids exchange may be employed when evaluating pigs´ productivity.
The work was submitted to the international scientific conference «Problems of agroindustrial complex», Thailand (Bangkok-Pattaya), December, 20-30, 2011, came to the editorial office on 23.11.2011.