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Korowiecka K, Trela M, Tombarkiewicz B, Pawlak K, Niedziółka JW, Swadźba M, Lis MW. Assessment of the effect of selected substances used for disinfection
of hatching eggs on hatching results in chickens. ROCZNIKI NAUKOWE POLSKIEGO TOWARZYSTWA ZOOTECHNICZNEGO 2017. [DOI: 10.5604/01.3001.0013.5221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of the study was to investigate whether egg disinfectants have a toxic effect on the tissues
of the developing chicken embryo. The basic active ingredients of the disinfectants tested were
quaternary ammonium compounds (Amino-Steril); stabilized peracetic acid and hydrogen peroxide
(Oxydion); glutaraldehyde, didecyldimethylammonium chloride, quaternary ammonium compounds
and benzyl-C12-C16-alkyldimethyl (Viron FF); and stabilized hydrogen peroxide (Hydro-Clean). The
tests were performed on hatching eggs from Ross 308 parent stock. The potential adverse effects of
aqueous solutions of the disinfectants were tested in vitro using the Hen’s Egg Test – Chorioallantoic
Membrane (HET-CAM). The results were confirmed in in vivo tests by analysing the hatchability of
disinfected eggs. In the in vitro tests, aqueous solutions of the disinfectants with concentrations of
1%, 0.5%, 0.25% and 0.125% were spotted onto previously prepared chorioallantoic membranes of
live eight-day-old chicken embryos (n = 8 embryos/disinfectant/concentration). The toxicity of the
substances was assessed on the basis of the occurrence of hyperaemia, haemorrhage, and coagulation
of the blood vessels of the membrane after 0.5, 2 and 5 minutes, using the 21-point Luepke scale. The
in vivo testing consisted of two experiments conducted under production conditions, using eggs from
flocks in the peak (37th week of life) and the final (54th week) laying periods. The eggs were sprayed
with a 1% aqueous solution of disinfectant (400 eggs/disinfectant/experiment) about 2 hours before
incubation. Hatching results, the stage of embryonic development at the time of death and any cases
of infection were evaluated. The HET-CAM tests showed that the 1% solutions of the disinfectants
induced strong (Hydro-Clean), moderate (Oxydion and Amino-Steril) and weak (Viron FF) reactions,
while the 0.125% concentration produced a weak reaction or none. Analysis of hatching results showed
that they were not affected by the disinfectants. However, in the case of laying hens in their final
production period, spraying with aqueous solutions of each agent reduced losses due to early embryo
mortality. In conclusion, the disinfectants tested can be safely used in poultry hatcheries
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Affiliation(s)
- Klaudia Korowiecka
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
| | - Magdalena Trela
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
| | - Barbara Tombarkiewicz
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
| | - Krzysztof Pawlak
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
| | - Jerzy W. Niedziółka
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
| | - Magdalena Swadźba
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
| | - Marcin W. Lis
- University of Agriculture in Krakow Faculty of Animal Sciences, Institute of Veterinary Science Department of Veterinary Science, Animal Reproduction and Animal Welfare
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