Czech Journal of Animal Science, 2006 (vol. 51), issue 8
Relationships between conformation traits and longevity of Holstein cows in the Czech Republic
M. Vacek, M. Štípková, E. Němcová, J. Bouška
Czech J. Anim. Sci., 2006, 51(8):327-333 | DOI: 10.17221/3946-CJAS 
The relationships between conformation traits and longevity traits were analyzed in 41 489 Holstein cows born in the years 1994-1999 which were culled by 30th June 2005. Pearson correlation coefficients between type traits and the herd life or productive life of cows were calculated. The effects of type trait scoring level on the length of productive life were described by means of analyses of variance. The observed correlations between herd life or productive life and type traits are in the range of -0.061 to 0.160. Negative correlations were found for rump angle, rear leg set, udder depth, and teat length. Most of the body traits had slightly...
The use of extruded chickpeas in diets for growing-finishing pigs
V. Christodoulou, V.A. Bampidis, E. Sossidou, J. Ambrosiadis, B. Hučko, C. Iliadis, A. Kodeš
Czech J. Anim. Sci., 2006, 51(8):334-342 | DOI: 10.17221/3947-CJAS
The effect of partial and total replacement of soybean meal (SBM) with extruded chickpeas (Cicer arietinum L.) and partial replacement of SBM with raw chickpeas on pig growth and carcass characteristics was determined in a 17 week experiment. Sixty growing-finishing pigs were allocated to five dietary treatments: CKP0, ECKP100, ECKP200, ECKP300 and CKP100 of 12 animals each, and received a diet ad libitum. The diet for CKP0 treatment had no chickpeas (control), while those for treatments ECKP100, ECKP200 and ECKP300 included 100, 200 and 300 kg/t of extruded (at 120°C for 20 s) chickpeas, respectively, and for treatment CKP100 it...
The estimation of live weight from body measurements in Yankasa sheep
R.A. Afolayan, I.A. Adeyinka, C.A.M. Lakpini
Czech J. Anim. Sci., 2006, 51(8):343-348 | DOI: 10.17221/3948-CJAS
Live body measurements of weight, height, length, girth, stifle- and hip-width and a measure of muscularity (ratio of stifle to hip width) were monitored on 258 Yankasa sheep stratified into age categories of 1 to over 3 years determined mostly from records and partly by dentition. These animals are from purebred Yankasa sheep kept as a part of the open nucleus-breeding scheme of the National Animal Production Research Institute, Shika, Zaria, Nigeria. The effect of sex, type of birth and age group of lambs on live measurements and muscularity were analyzed by least-squares procedures. All variables examined, except sex, had significant (P...
The effect of dietary Jerusalem artichoke (Helianthus tuberosus L.) on performance, egg quality characteristics and egg cholesterol content in laying hens
G. Yildiz, P. Sacakli, T. Gungor
Czech J. Anim. Sci., 2006, 51(8):349-354 | DOI: 10.17221/3950-CJAS
This research was carried out to determine the effect of Jerusalem artichoke (JA) with or without 5, 10% vetch (V) supplementation on performance, egg quality characteristics and egg cholesterol content. In the study, seventy-five 25 weeks-old commercial white laying hens were randomly divided into one control and 4 treatment groups each containing 15 hens. Control group was fed basal diet without JA or V. Treatment group 1, 2, 3 and 4 were fed diets containing 5% V, 5% JA, 5% JA + 5% V and 10% JA + 10% V, respectively. The feeding period lasted 16 weeks. In the study, it was determined that dried-ground JA contained dry matter, crude protein, ether...
The effect of magnetic field on hatchability of Japanese quail eggs
Z. Tarasewicz, D. Szczerbinska, D. Majewska, A. Danczak, M. Ligocki, A. Wolska
Czech J. Anim. Sci., 2006, 51(8):355-360 | DOI: 10.17221/3951-CJAS
The effect of environmental conditions on hatching indices of poultry eggs is sufficiently important that new methods for their improvement are sought, among others through exposing the eggs during hatching to an artificially generated magnetic field of variable frequency. Hatching eggs in this study came from Pharaoh quail in the 4th month of laying. The flock was kept under optimum microclimate conditions and fed a complete feed mix containing 21% total protein and 11.7 MJ ME. The eggs (n = 150), after weighing, were divided into 3 groups equal in respect of numbers: control (I) and two experimental (II and III). The eggs of group II and...
Application of FT NIR spectroscopy in the determination of basic chemical composition of pork and beef
J. Mlček, K. Šustová, J. Simeonovová
Czech J. Anim. Sci., 2006, 51(8):361-368 | DOI: 10.17221/3952-CJAS
The objective of this paper was to determine basic components of pork and beef (fat, protein, water content) using FT NIR spectroscopy. The samples were analysed on an FT NIR Nicolet Antaris device in a reflec-tance regimen. Reference results from classical analyses were used for the calibration of the device. Calibration models were created using PLS algorithm (method of partial least squares) and verified by cross-validation. High correlation coefficients (R) of calibration were calculated (fat 0.998; protein 0.976; water 0.994), and subsequently of validation as well (fat 0.997; protein 0.970; water 0.993) and very low standard deviations...
The effects of season and rearing systems on meat quality traits
S. Bogosavljević-Bosković, V. Kurćubić, M. Petrović, V. Dosković
Czech J. Anim. Sci., 2006, 51(8):369-374 | DOI: 10.17221/3953-CJAS
With the aim to examine the effect of season and rearing system on major broiler meat quality traits appropriate experimental investigations were conducted. Trial material included a total of 800 one-day-old broilers of the Hybro line hybrid. The experiment was organized in two replications, as trial I (conducted in the spring season) and trial II (conducted in the summer season). Two broiler fattening methods were employed, the intensive and semi-intensive one (using free-range rearing). The experimental chicks were slaughtered after seven weeks of fattening. Following the fattening period, 60 broilers (30 broilers from each experimental group) were...