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Egg yolk and white proteins from hens kept in eight conservation flocks in Poland were separated with horizontal polyacrylamide gel electrophoresis. The analyses were done on 100-120-egg samples from each of the following breeds: Green-Legged Partridge, ZKF and ZK11, Yellow-Legged Partridge, Z33, Polbar, PB, Leghorn, H22 and G99, Rhode Island Red, RD2, and Sussex, S66. After estimating phenotype frequency...
Blue dun colour with no white markings represents a trait of the Polish Konik horse breed. However, in spite of long-term selection, non-blue-dun individuals, and those with the markings have still been appearing. The aim of this study was to analyse the genetic structure of the Polish Konik population with respect to coat colour and, on this basis, to propose improved methods of selection. The material...
The blue dun colour shade is not a selection criterion in Polish Konik horse breeding, hence it has been possible to undertake the analysis of its inheritance on the example of this population. The material consisted of Polish Konik horses registered in the Studbook.
Blood serum proteins of 36 males and 71 females of parental generation and of 516 progeny of various breeds of geese were separated by means of thinlayer, horizontal, alkaline polyacrylamide gel electrophoresis. In the subregion of slowmigrating prealbumin (PASG) in alkaline gel, ten different phenotypes were found. It was determined, both in the parents and the progeny, that the genes of a single,...
The study covered 97 Japanese quails of various genotypes of the protein referred to as preactin (PAK). The birds of AA genotype had a single, intensively stained, fastmigrating band; the BB genotypes had a single, slowmigrating, also intensively stained band, whereas the AB birds had two bands. The protein concentration, established basing on the area and height of peaks, was significantly higher...
The investigations were aimed at the determination of genetic distance among eight lines of laying hens kept in Poland and belonging to the following breeds: GreenLeg ZKF and Z11, Leghorn H22 and G99, Rhode Island Red RD2, YellowLeg Ż33, Polbar (Pb) and Sussex (Sx). The phenotype frequencies of fastmigrating prealbumin (PaF), eggyolk transferrin and ovalbumin (OvA), ovoglobulins: G3, G4 and...
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