The relationship between serum lysozyme activity
and reproductive performance in turkeys

Studies were carried out in order to determine the dynamics of changes in lysozyme activity in the serum of turkey females during the laying period, and to identify the relationship between lysozyme activity and utility parameters. The experiments were carried out on 107 randomly chosen females from a maternal female strain (J-44), selected to increase egg production. Lysozyme activity was determined four times, in the 6th, 12th, 18th and 24th week of the laying period. Lysozyme activity was found to increase significantly in the 12th week, followed by a subsequent, gradual decrease. In the 18th week of the laying period, a significant negative correlation was found between lysozyme activity and the number of laid eggs and hatchabihty, and a significant positive correlation between lysozyme activity and percentage of unhatched poults. Correlation between lysozyme activity and reproductive performance in other periods was low and insignificant.

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ISSN:

1230-1388

Assigning DOI numbers, introducing articles from supplements and recent publications to POL-index database, maintaining anti-plagiarism detection, electronic system to proceed manuscripts and webpage of the Journal with interactive pdf files, and language correction of manuscripts published in Journal of Animal and Feed Sciences are financed in the years 2018–2019 by the Ministry of Science and Higher Education from the funds for science popularization activities, Agreement No. 631/P-DUN/2018.