Genome Analysis of the Probiotic Strain Enterococcus faecium Ef79OSAU.

We report here the draft genome sequence of Enterococcus faecium strain Ef79OSAU, which was isolated from swine feces. The characteristics of strain Ef79OSAU reveal the absence of pathogenicity factors, a wide range of antimicrobial activity in vitro, and antilisteriosis activity in vivo. Analysis of the E. faecium Ef79OSAU genome revealed a cluster of genes encoding enterocin A without genetic determinants of pathogenicity.

[Gene pool of pig breeds in southern region of Ukraine as determined from immunogenetic parameters]. / Genofond porod svinei iuzhnogo regiona Ukrainy po immunogeneticheskim pokazateliam.

On the basis of the long-term observations of 22 334 pedigree animals, the level of genetic polymorphism and basic breed-specific immunogenetic parameters were determined in eight major pig breeds from southern Ukraine. The high level of gene diversity was revealed and the degree of genetic similarity between the studied breeds was estimated.

[Immunogenetic structure of the Ukrainian White Steppe species pig herd by frequency of complex genotypes in connection with some parameters of productivity]. / Immunogeneticheskaia struktura stada svinei ukrainskoi stepnoi beloi porody po chastote kompleksnykh genotipov v sviazi s nekotorymi parametrami produktivnosti.

Studying of the structural organization of the gene pool considering frequencies of occurrence of complex genotypes in animals simultaneously by many loci of blood groups allows to better characterize immunogenetic parameters of populations and peculiarities of selection acting upon animals of different genetic classes. The data on presence of the optimum level of gene diversity and peculiarities of selection acting upon polymorphic systems of blood groups in the pig herd of Ukrainian Steppe White breed have been obtained. The results can be used for increasing efficiency of breeding.

[Structural organization of the gene pool of the Ukrainian steppe white pig breed from immunogenetic markers]. / Strukturnaia organizatsiia genofonda ukrainskoi stepnoi beloi porody svinei po immunogeneticheskim markeram.

The study of structural organization of gene pool was conducted for eight blood-group genetic systems (transferrin, haptoglobin, and amilase) in three stock herds of pigs of the Ukrainskaya Stepnaya Belaya breed that were bred under the conditions of southern Ukraine. Typical gene combinations (complex genotypes) of this breed were detected, and the main breed-specific parameters of distribution of genetic markers were described.

[The comparative characteristics of the reproductive capacities of swine in 3 breeds of different immunogenetic classes]. / Sravnitel'naia kharakteristika vosproizvoditel'nykh sposobnostei svinei trekh porod raznykh immunogeneticheskikh klassov.

The comparative characterization of the level of development of some reproductive qualities of sows of three breeds from five breeding herds of the southern regions of Ukraine was performed in relation to peculiarities of genotypes with respect to some genetic systems of blood groups and serum proteins. Its results favor the complex approach for predicting animal productivity on the basis of data of immunogenetic analysis.

[Dynamics of microevolutionary processes during the use of pigs of various types under conditions at an industrial complex]. / Dinamika mikroévoliutsionnykh protsessov pri ispol'zovanii svinei razlichnogo tipa v usloviiakh promyshlennogo kompleksa,

Breeding of pigs in a closed herd during three generations under industrial complex conditions does not essentially increase the number of animals with homozygous genotypes of polymorphic systems of blood groups. One of the possible causes of this phenomenon is selection favourable to animals with a higher heterozygosity.

[Immunogenetic analysis of the population structure of Duroc breed swine during acclimatization]. / Immunogeneticheskii analiz struktury populiatsii svinei porody Diurok v protsesse akklimatizatsii.

The American Duroc pigs characterized by the specific immunogenetic structure and especially by the high level of B and Hp loci polymorphism, and by the amylase locus monomorphism as well. Immunogenetic analysis allows revealing changes in the genetic structure of the population induced by breeding and during adaptation.

[Photophysics of complex formations between chlorophyll a and its analogs with pi acceptors]. / Fotofizika protsessov v kompleksakh khlorofilla a i ego analogov s lambda-aktseptorami.

Efficient quenching of fluorescence was shown to proceed in the complexes of chlorophyll a and its analogs with tetracyanochinodimethane (TCD), 1,3,5-trinitrobenzene (TNB), m-dinitrobenzene (DNB) and n-benzoquinone. In chlorophyll a--TCD and--DNB complexes quenching is characterized by the rate constant approximately greater than 5 x 10(10) s-1, and in chlorophyll a--n-benzoquinone greater approximately than 5 x 10(9) s-1. Possible ways of desactivation of singlet-excited state of chlorophyll a in the complexes with TCD and TNB were analysed. No triplet states of chlorophyll a complexes with TCD and TNB and no cation-radicals were recorded. It is suggested that efficient desactivation of the pigment singlet-excited state may be explained by a reversible phototransfer of the electron.