Czech Journal of Animal Science, 2007 (vol. 52), issue 2
Effect of olive cake on daily gain, carcass characteristics and chemical composition of lamb meat
B. Mioč, V. Pavić, I. Vnučec, Z. Prpić, A. Kostelić, V. Sušić
Czech J. Anim. Sci., 2007, 52(2):31-36 | DOI: 10.17221/2261-CJAS 
This experiment investigated the effect of olive cake in the feed of weaned Pramenka lambs on their daily gain, carcass traits and on the chemical composition of different groups of muscles. For that purpose, 45 male lambs were divided into three groups with 15 lambs each and fed separately for 50 days. The first group (control) was fed a commercial concentrate, while the second and third (test) groups were fed a concentrate with the addition of 15% and 30% olive cake, respectively. The results showed that the high level of olive cake inclusion (30%) decreased (P < 0.01) daily gain, final weight, empty carcass weight and (P < 0.05)...
A sensor for investigating the interaction between biologically important heavy metals and glutathione
D. Húska, O. Zítka, V. Adam, M. Beklová, S. Křížková, L. Zeman, A. Horna, L. Havel, J. Zehnálek, R. Kizek
Czech J. Anim. Sci., 2007, 52(2):37-43 | DOI: 10.17221/2345-CJAS
Glutathione (GSH) is a water-soluble tripeptide playing a crucial role in the number of cellular reactions including detoxification of heavy metals. Glutathione can be found both in an oxidized (GSSG) and reduced (GSH) state. The aim of this paper was to use electrochemical methods to determine glutathiones and to investigate interactions of GSH and cadmium, zinc, copper and nickel ions or feed additive for animal nutrition. It clearly follows from the results that GSH and GSSG can be distinguished by cyclic voltammetry whereas the level of their current response is proportional to their concentration. Moreover, we studied these interactions by cyclic...
Relationship between abnormal spermatozoa and seminal plasma free amino acids in boars
J. Čeřovský, S. Frydrychová, A. Lustyková, M. Rozkot
Czech J. Anim. Sci., 2007, 52(2):44-49 | DOI: 10.17221/2346-CJAS
The objective of this study was to provide some data on concentrations of seminal plasma free amino acids (FAAs) in order to compare these values with different total contents of morphologically abnormal spermatozoa (MAS) in the semen of 37 experimental adult boars. The boars were kept in the same housing, feeding and breeding conditions. Immediately after collection, semen gel free volume, sperm concentration and total MAS were determined microscopically. The boars were divided into two groups (A - n = 24, B - n = 13) according to the significantly different total MAS content (x: A = 9.46 ± 4.95, B = 46.00 ± 14.54%,...
Mechanical behaviour under compression loading and some physical parameters of Japanese quail (Coturnix coturnix japonica) eggs
R. Polat, S. Tarhan, M. Çetin, U. Atay
Czech J. Anim. Sci., 2007, 52(2):50-56 | DOI: 10.17221/2262-CJAS
Technical information and data on the physical and mechanical properties of agricultural and animal products are necessary to design various equipments for agriculture and industry. In this study some physical properties such as mass, length, diameter, geometric mean diameter, surface area, sphericity, volume, coefficient of friction and packaging coefficient were determined for Japanese quail eggs. Furthermore, the mechanical behaviour of Japanese quail eggs was determined in terms of average rupture force, deformation and toughness (energy absorbed by the Japanese quail eggs per unit volume). Egg samples were compressed along their X and Z-axes....