SPLEEN BLOOD SUPPLY IN LANDRACE PIGS
The pattern of consecutive development of the arterial and venous arteries has been identified in the process of studies devoted to the problem of spleen blood supply in Landrace pigs. The spleen vessels in fetuses of new-born piglets of different age periods have been examined. The diameter of blood vessels and their growth rate have been measured. It is shown that the period of birth vessels diameter in pre-fetuses and fetuses is increasing unevenly, with the peak of intensive growth falling to the second half of the fetal period. It is the arteries that grow more intensively in the first half of the fetal period and the growth of veins falls to the second period.