[Genetic characteristics of the 1st Soviet miniswine Minisibs. II. The immunogenetic characteristics of laboratory Minisibs]. / Nekotorye geneticheskie osobennosti pervykh otechestvennykh mini-svinei minisibs. Soobshchenie II. Immunogeneticheskie osobennosti laboratornykh minisibsov.

A laboratory miniature Siberian pig "Minisibs"--a new laboratory animal in USSR is characterized by a very wide immunogenetic polymorphism for all the blood group systems studied, significantly differing in this respect from all the wild and domestic pigs. When "Minisibs" were compared with American, West-German and Japanese miniature pigs in relation to the blood group systems E, F, G and L, the considerable distinction was demonstrated. These immunogenetic peculiarities indicate adequately the complicated phylogenesis of "Minisibs" and the rovel of different European and Asian domestic pig breeds and wild boars in it. "Minisibs" are to be used mainly as a medical and biological model. Besides, they could be of great use in studies of selection and genetics for modelling microevolutionary processes as well as for obtaining monospecific antisera-reagents which detect a wide spectra of erythrocyte and sera antigens. A prerequisite for this is a well studied immunogenetic polymorphism.

[Genetic characteristics of the 1st Soviet miniswine, Minisibs (miniature Siberian swine). I. The breeding of Minisibs and their morphophysiological properties]. / Nekotorye geneticheskie osobennosti pervykh otechestvennykh mini-svinei Minisibs. Soobshchenie I. Vyvedenie Minisibs i ee morfofiziologicheskie svoistva.

The first form of laboratory mini-pigs "Minisibs" (miniature siberian swine) in USSR is the result of the distant hybridization and of the system of complex crosses between domestic and wild pigs of European and Asiatic origin (Sweden Landrace, Black Vietnamese, Sus scrofa ferus, Sus scrofa nigripes). "Minisibs" have a very small size, their live weight at birth is 517.16 +/- 6.48 g, at the age of two months--4.72 +/- 0.13 kg, at the age of 6 months when sexual maturity is achieved--19.02 +/- 0.89 kg and at the age of 12 months when they are adult males--29.75 +/- 2.98, females--35.35 +/- 0.01 kg. More than 88% of "Minisibs" are white, they have calm behaviour, are omnivorous, tolerant to a wide range of ecological conditions. "Minisibs" have a set of immunogenetical and cytogenetical features, in which they differ from other known miniature pigs. One of these features is the chromosome polymorphism: "Minisibs" have a 2n = 38, 37 and 36 karyotypes. "Minisibs" are very similar to a man in morphological and physiological parameters of many organs, and in the course of various pathological processes. For these reasons, mini-pigs "Minisibs" can be efficiently used as the best adequate model in the large scope of medical and biological programmes.