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- Title
BREED- AND GENDER-RELATED FEATURES OF BLOOD LYSOZYME ACTIVITY IN GOATS DEPENDING ON THE SEASON.
- Authors
Semerdjiev, V.; Sotirov, L.; Zunev, P.; Maslev, Ts.
- Abstract
The investigations were performed in 2005-2006. Serum lysozyme concentrations were assayed in goats from the Bulgarian Dairy breed (BDB) reared in the Institute of Mountain Stockbreeding and Agriculture - Troyan and Experimental Farm of the Trakia University - Stara Zagora, BDB×Toggenburg and BDB×Anglo-Nubian crosses, as well as local crosses reared in Bogomilovo, region of Stara Zagora and Anevo, region of Karlovo. Six goats were studied from each group, as well as 6 purebred BDB, 6 Anglo- Nubian and 6 Toggenburg bucks or a total number of 163 goats and 72 bucks. Blood samples were aseptically obtained in the morning prior to feeding from the jugular vein. The activity of lysozyme was assayed by the method of Lie (1). During spring the lowest lysozyme activity was exhibited by local goats reared in Anevo (0.192 ± 0.015) and the highest mean values - by local goats reared in Bogomilovo (p < 0.01). In summer, the highest lysozyme concentrations were those of the BDB breed from Troyan with 0.447 ± 0.244, and the lowest - of local goats from Anevo with 0.192 ± 0.015 and BDB from Stara Zagora: 0.204 ± 0.022 (p < 0.01). There was a tendency towards higher summer blood lysozyme activity in male animals as compared to females, with the exception of the BDB from Troyan. In autumn, blood lysozyme activity was the highest in most studied goat breeds, both in males and females. During winter, all goats and bucks except for those reared in Anevo, showed a reduced lysozyme activity.
- Subjects
STARA Zagora (Bulgaria); BULGARIA; LYSOZYMES; ANIMAL breeding; GOATS; GLYCOSIDASES; BLOOD; NUBIAN goat
- Publication
Trakia Journal of Sciences, 2009, Vol 7, Issue 3, p33
- ISSN
1312-1723
- Publication type
Article