UDC 636.5.032.35
DOI 10.36461/NP.2025.75.3.012

EFFECT OF DIFFERENT TREATMENT METHODS AND STORAGE PERIODS OF HATCHING EGGS ON THE HATCHABILITY OF CHICKS
T.V. Shishkina, Candidate of Agricultural Sciences, Associate Professor,
N.V. Nikishova, Candidate of Agricultural Sciences, Associate Professor,
T.A. Guseva, Candidate of Agricultural Sciences, Associate Professor,
Yu.A. Borisov, undergraduate student, O.P. Tukanova, student
Penza State Agrarian University, Penza, Russia, tel. 8-(8412) 628-380
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article presents the results of research conducted on hatching eggs of laying hens of the parent herd Cobb-500. Four groups were formed depending on the method of treatment of eggs and their storage period: Group I – Formaldehyde – up to 5 days; group II – manganese chloride + egg white – up to 5 days; group III – Formaldehyde – 6 to 10 days; group IV – manganese chloride + egg white – 6 to 10 days. During the experiment, egg incubation technology was studied; the results of incubation and the quality of the hatched young were evaluated, and the results of the analysis of incubation waste were analyzed. The quality of hatching eggs generally met the requirements, as their average weight, density and shape index were within the normal range; however, the content of carotenoids and vitamin A was slightly below the standard. In group II, the highest percentage of chicks suitable for further cultivation was observed – 99.32%. Moreover, this group had the smallest number of weak and non-viable individuals as well. In group I, the percentage of chickens suitable for cultivation was the lowest – 98.16%, and it had the largest number of weak and non–viable chicks - 0.84%. An assessment of the weight of hatching eggs showed that the best result was in group II (70.1 g). This indicator exceeded the results of groups III, I and IV by 0.9, 0.4 and 0.6 g, respectively. According to the results of incubation, the following data were obtained: the hatch of young animals was 66.3%, and the proportion of unfertilized eggs was 25.4%. The largest amount of incubation waste was observed in groups I and III, where formaldehyde and magnesium chloride treatment was used, and eggs were stored longer. Thus, the treatment of hatching eggs with manganese chloride together with egg white gives better results than using formaldehyde.
Keywords: incubation, eggs, treatment, storage, quality, hatchability.

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