Czech Journal of Animal Science, 2015 (vol. 60), issue 1
Crypto-tobiano horses in Hucul breedOriginal Paper
A. Stachurska, P. Jansen
Czech J. Anim. Sci., 2015, 60(1):1-9 | DOI: 10.17221/7905-CJAS 
The aim of the study was to verify the hypothesis that the crypto-tobiano horses which do not exhibit the full tobiano white-spotting pattern nonetheless transmit the dominant To gene to the progeny. The study was conducted on the Hucul population. Seven horses with white patches on their limbs, and with or without a small patch on the head, neck or trunk, were selected. At least one of the parents of the horses had to be tobiano or crypto-tobiano. Occasionally such horses produced a tobiano foal from a crossing with a solid-coloured horse. The white patches of the horses used in our study were divided into categories. To identify the To...
Exploration of natural cryoprotectants for cryopreservation of African catfish, Clarias gariepinus, Burchell 1822 (Pisces: Clariidae) spermatozoaOriginal Paper
Z.A. Muchlisin, W.N. Nadiah, N. Nadiya, N. Fadli, A. Hendri, M. Khalil, M.N. Siti-Azizah
Czech J. Anim. Sci., 2015, 60(1):10-15 | DOI: 10.17221/7906-CJAS
Toxicity is a major limitation to successful spermatozoa cryopreservation of fish. Due to this problem, it is critical to find potential cryoprotectants which are more environmental-friendly, non-toxic, easily prepared, and available at affordable prices. Hence, the objective of the present study was to investigate several natural cryoprotectants for optimal cryopreservation of the African catfish, Clarias gariepinus, Burchell 1822 (Pisces: Clariidae) spermatozoa. Three natural cryoprotectants were tested - egg yolk, glucose, and honey, while DMSO was used as a control at different concentrations (5, 10, and 15%). Sperms were diluted with...
Effect of sodium selenite or lactate-protein selenium complex supplementation on selenium status in goat kidsOriginal Paper
A. Pechová, L. Antošová, L. Pavlata, A. Podhorský
Czech J. Anim. Sci., 2015, 60(1):16-24 | DOI: 10.17221/7907-CJAS
The aim of the study was to compare the effect of selenium (Se) supplementation in organic (lactate-protein complex) or inorganic (sodium selenite) forms on Se concentrations in the blood and organs of goat kids. The experiment involved nineteen male goat kids divided into three groups: C, Se-I, and Se-O. Control group C (n = 5) was without Se supplementation, group Se-I (n = 7) received sodium selenite supplement (0.30 mg Se per animal/day), and group Se-O (n = 7) received lactate-protein selenium complex (0.28 mg Se per animal/day). The supplementation started on the day of weaning and continued for 13 weeks till the day...
Researching rumen degradation behaviour of protein by FTIR spectroscopyOriginal Paper
D. Liu, P. Wu, P. Jiao
Czech J. Anim. Sci., 2015, 60(1):25-32 | DOI: 10.17221/7908-CJAS
The objectives of the present study were: (1) to detect protein secondary structures using the Fourier transform infrared spectroscopy (FTIR), and (2) to investigate the relationship between protein secondary structures and their rumen degradation kinetics in dairy cattle. The study was carried out using FTIR to estimate protein molecular structure of eight different types of samples, such as soybean meal, cottonseed meal, rapeseed meal, distilled dried grains with solubles, and corn. Nutritive values of these samples were determined using the Cornell Net Carbohydrate and Protein System. The results showed that: (1) different feed protein sources had...
Effect of orexin-A on prolactin secretion in lambs born under different photoperiod conditions - in vitro studyOriginal Paper
E. Molik, M. Błasiak, T. Misztal, K. Romanowicz, D.A. Zięba-Przybylska
Czech J. Anim. Sci., 2015, 60(1):33-37 | DOI: 10.17221/7909-CJAS
The role of orexin-A in the regulation of prolactin secretion in lambs born in different photoperiods was determined. The experiment was conducted with 30 female lambs. Pituitary glands were collected from 40-day-old lambs in three different seasons (n = 10 per each season) and photoperiods (light (L) hours to darkness (D) hours): long (May - L 14 : D 10), intermediate (August - L 13 : D 11), and short (December - L 10 : D 14). At 40 days of age, the lambs were decapitated, and their pituitaries were dissected and cut in half along the longitudinal fissure so that each half contained both glandular and nervous parts. The in vitro...
Effects of dietary supplementation of chitosan on immune and antioxidative function in beef cattleOriginal Paper
T. Li, R. Na, P. Yu, B. Shi, S. Yan, Y. Zhao, Y. Xu
Czech J. Anim. Sci., 2015, 60(1):38-44 | DOI: 10.17221/7910-CJAS
The present experiment was conducted to study the effects of chitosan (CHI) on immune and antioxidative function in beef cattle. A total of 24 fattening Simmental cattle with similar body weight and age were divided randomly into three dietary groups, and the three diets contained 0, 500, and 1000 mg/kg CHI, respectively. The feeding trial lasted for 84 days. It was found that: (1) the addition of CHI in diets improved (P < 0.05) the levels of IgA and interleukin-1, and decreased (P < 0.1) the levels of soluble cluster of differentiation 4 receptor in serum at middle stage except that IgA remained unchanged in 1000 mg/kg CHI...