Hatchability of broilers after disinfecion hatching eggs with ozone
2000
Chmelnicna, M. (Slovenska Polnohospodarska Univ., Nitra (Slovak Republic))
The hatchability of broiler chicken was investigated after disinfecting the hatching eggs two hours after their setting by exposure to the air with higher concentration of negative ions and higher content of ozone (0.450 ppm, 12 hours - 5 groups) and with formaldehyde (20 g KMnO4 + 30 g formalin, 40% concentration, per 1 cubic m, 5 groups) in a Bios-Midi incubator using a standard hatching technology. Within the initial 510 hours of incubation, almost identical results were obtained with a tendency of better stimulation of hatching by disinfection with ozone (chickens hatched from 86.5% of fertile eggs, on average) compared to disinfection with formaldehyde (84.2% on average). Similar tendency was observed after 526 hours of incubation. The mortality of chickens did not reflect any differences between the two methods of disinfection of setting eggs. No negative effect of disinfection with ozone on livability of chickens was observed
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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