Effect of intensity of feeding on the intestinal microflora of pigs.

In individual, single-phase feeding animals were fed extensively (group E--7 animals) or intensively (group I--7 animals) in semi ad libitum system. The mixtures differed in composition as well as energy and nutritional value, with constant ratio of protein to energy of 13.12:1 in intensive feeding and 13.

Characteristics of bacterial strains inhabiting the wood of coniferous trees.

The presented studies embraced samples of wood chips from coniferous trees which contained layers of duramen, alburnum and bark. Microbiological analysis involved qualitative and quantitative determination of bacterial flora inhabiting the studied wood material. The wood chips were found to contain primarily species belonging to the genera Bacillus and Pseudomonas.

Tolerance to creosote oil of bacteria of the genus Pseudomonas isolated from the wood of coniferous trees.

A number of Pseudomonas sp. strains isolated from wood shavings not preserved with chemical agents were characterized by tolerance to concentrated creosote oil. Of eleven strains subjected to closer scrutiny, five showed good or very good growth in minimal medium with creosote oil as sole carbon and energy source.

Effect of addition of "Greenline" preparations to feed mixtures for broilers on the composition of their intestinal microflora.

The current study deals with the possibility of replacing the antibiotic growth stimulator avilamycin, a mixture of oligosaccharides of the orthosomycin group, with the herbal preparations Greenline 1 and 2. The microbiological part of the study embraced examination of the intestinal microflora of broilers. The birds in the study belonged to four experimental groups, distinguished on the basis of feed supplements used.

Microbiological studies of feed and faeces of fatteners fed mixtures containing naked oat and permutite.

Quantitative and qualitative microbiological studies of feed mixtures and faeces of fatteners with body weight approximately 70 kg receiving complete mixtures: group I (control)--55% barley, II--55% naked oat, III--55% naked oat + 3% permutite were conducted. All mixtures were supplemented with the same protein concentrate for fatteners. It was found that feeding the fatteners with mixtures containing naked oat had a favourable effect on the composition of the faecal microflora, with increased participation of Lactobacillus spp.