The research material consisted of eggs bought from parent stock of Ross 308 meat chickens. The birds were kept on deep litter in enclosed housing (Borzychy, Masovian Voivodeship, Poland) in accordance with the requirements given in "Instructions for Raising a Ross 308 Flock" [16]. The microclimate conditions of the chicken houses were strictly controlled in accordance with accepted standards.

The aim of the study was to assess breeding of zebra finches kept in a flock in an amateur indoor aviary. The research was carried out at an amateur breeding facility in the Masovian Voivodeship in 2014-2018. The subject of the study was 5 pairs of zebra finches (Taeniopygia guttata) kept in an indoor aviary. Analysis of breeding was based on the following parameters: number of eggs laid, number of chicks hatched, and number of chicks reared from two broods each year. The reproductive parameters of the zebra finch pairs were varied. There were differences between individual pairs of birds for both the number of eggs laid per clutch and the number of chicks reared. Most of the zebra finch pairs had very good reproductive parameters; only a pair consisting of two albino individuals did not rear any offspring in any of the breeding seasons.

No abstract

The aim of this study was to assess the reproductive parameters of privately bred ring-necked parakeets (Psittacula krameri). The study was carried out in an amateur breeding facility in the Masovian voivodeship in 2013–2017. Observations were carried out on four pairs of ring-necked parakeets kept year round in outdoor aviaries. The analysis was based on the following indicators: number of eggs laid, number of chicks hatched, and number of chicks reared from two broods each year. The reproductive parameters of the pairs of ring-necked parakeets were varied. There were marked differences between individual pairs of birds concerning both the number of eggs in the clutch and the number of chicks reared. Most pairs reared two broods each year. In the first year of observation, the birds reared eight chicks from 13 laid eggs, while in the last year of data collection they reared 11 chicks from 16 eggs.