The influence of different breeding units and breeding systems on reproductive results of cockatiels (Nymphicus hollandicus)
Journal Title: Acta Scientiarum Polonorum Zootechnica - Year 2015, Vol 14, Issue 1
Abstract
The aim of this study was to evaluate the influence of breeding units and two housing systems on the reproductive effects of cockatiels (Nymphicus hollandicus). The study was taken in an amateur breeding in the Masovian voivodeship in 2013. The material of the study was 10 pairs of cockatiels (Nymphicus hollandicus), half of which was bred in an aviary gregarious system, the rest of the birds was kept indoor in individual cages in pairs. The analysis of the breeding work is based on indicators: the number of eggs, the number of chicks reared and demises of birds in the two systems of breeding. The observed pairs of cockatiels characterized good reproductive indicators. However, the significant differences were found between the systems of rearing. All pairs had 2 clutches per year, but at the end of the breeding season the birds kept in the aviary reared a total number of 44 chicks. In comparison, the birds kept in individual cages reared only 22 chicks.
Authors and Affiliations
Dorota Banaszewska, Dominik Ostrowski, Barbara Biesiada-Drzazga, Katarzyna Andraszek, Krzysztof Górski, Marta Flis-Chruściel
Consumer assessment of yogurts made from sheep’s, goat’s, cow’s and mixed milk
The main objective of the study was a comparison for cholesterol in yogurts made from sheep milk, goat milk, cow milk, and their 1:1 mixures. The products were also subjected to consumer sensory evaluation of flavour, co...
Assessment of ultraviolet light effect in hatching eggs disinfection on hatchability traits of two breeds of quails and chickens
This study was carried out to investigate the effectiveness of ultraviolet light (UV) (262 nm, 10 mW ∙ cm–2) used as a disinfectant of hatching eggs for two breeds of chicken; Greenleg Partridge (GP) and Polbar (Pb) and...
TIME OF LYING IN THE HORSE WITH REGARD TO ITS SEX AND SYSTEM OF MANAGEMENT
The objective of the study was to determine demands for lying in adult horse males and females, as well as in females maintained under various systems. 43 horses were studied in three centres. Time of lying was measured...
SZACOWANIE POZIOMU ZAPASÓW ENERGETYCZNYCH U KRÓW MLECZNYCH NA PODSTAWIE GRUBOŚCI TŁUSZCZU PODSKÓRNEGO
Celem pracy było określenie zależności między zmianą poziomu zapasów energetycznych, mierzonych grubością tłuszczu podskórnego u krów mlecznych w początkowym okresie laktacji, a ich płodnością i produkcyjnością. Badania...
The molybdenum content in the muscles of red deer (Cervus elaphus)
The aim of the study was to evaluate the molybdenum concentrations in the muscles of red deer hunted in north-eastern Poland. Samples for analysis were collected from 27 females, and metal concentrations were determined...