Czech Journal of Animal Science, 2016 (vol. 61), issue 2
Persistence of bifidobacteria in the intestines of calves after administration in freeze-dried form or in fermented milkOriginal Paper
M. Geigerová, E. Vlková, V. Bunešová, V. Rada
Czech J. Anim. Sci., 2016, 61(2):49-57 | DOI: 10.17221/8727-CJAS 
In order to improve the gut microbiome of calves, probiotic bacteria can be fed as active living-cells (fermented milk), or as live but inactive (freeze-dried) cultures. Ten bifidobacterial strains with suitable probiotic properties (as determined in our previous study) were tested for survival during the freeze-drying process, and screened for their ability to ferment cow's milk. The viability of both freeze-dried and live-cell cultures during storage was also tested. All of the strains tested were able to ferment cow's milk, with average counts of 8.26 ± 0.62 log CFU/ml. Eight out of the ten strains were able to survive in milk for 2 months...
Impact of different processing of full-fat soybeans on broiler performanceOriginal Paper
J. Heger, M. Wiltafsky, J. Zelenka
Czech J. Anim. Sci., 2016, 61(2):57-66 | DOI: 10.17221/8728-CJAS
The response of broilers to various conditions of expander processing of full-fat soybeans (FFSB) was studied in an experiment involving 5040 birds allocated to 10 dietary treatments with six replicates. In treatments 1-8, the proportions of FFSB in starter, grower, and finisher diets were 40, 39‒43, and 34‒37%, respectively. Diets for treatments 9 and 10 contained commercial soybean meal (SBM) as a main protein source. All diets were isocaloric and were formulated to contain standardized ileally digestible amino acids at levels corresponding to 95% (treatments 1-7 and 10) or 100% (treatments 8 and 9) of requirement. In treatment 1, raw...
Phosphorus and nitrogen utilization efficiency in rainbow trout (Oncorhynchus mykiss) fed diets with lupin (Lupinus albus) or soybean (Glycine max) meals as partial replacements to fish mealOriginal Paper
A.J. Hernández, D. Roman
Czech J. Anim. Sci., 2016, 61(2):67-74 | DOI: 10.17221/8729-CJAS
The study was conducted to compare two plant ingredients as dietary protein sources for rainbow trout on the basis of feed acceptability, survival, growth, feed conversion, nitrogen and phosphorus utilization efficiency and loading. Two extruded diets were formulated with the inclusion of a soybean meal (DS) and a lupin meal (DL). The control diet was a fish meal (FM) based diet. All diets were isonitrogenous and isolipidic. Triplicate groups of 65 fish (5.10 ± 0.10 g) were assigned to each diet. At the end of the experiment (66 days), all groups of fish fed diets had a similar final growth and feed utilization efficiency (P > 0.05)....
Genetic relationship between lactation persistency and conformation traits in Polish Holstein-Friesian cow populationOriginal Paper
A. Otwinowska-Mindur, E. Ptak, W. Jagusiak
Czech J. Anim. Sci., 2016, 61(2):75-81 | DOI: 10.17221/8730-CJAS
The objective of this study was to find genetic relationships between lactation persistency and conformation traits of Polish Holstein-Friesian cows. The data were derived from SYMLEK - the Polish National Database. The analysis used 22 conformation traits and 3 persistency measures of 18 216 first lactation cows. Persistency was defined as milk yield in the second 100 days in milk (DIM) divided by the yield in the first 100 DIM, milk yield in the third 100 DIM divided by the yield in the first 100 DIM, and milk yield at 280 DIM divided by milk yield at 60 DIM. The lactation curve was modelled with fourth-order Legendre polynomials using a multiple-trait...
Transient effects of weaning on the health of newly weaning pigletsOriginal Paper
X. Tao, Z. Xu, X. Men
Czech J. Anim. Sci., 2016, 61(2):82-90 | DOI: 10.17221/8731-CJAS
The transient effects of weaning on the health of newly weaning piglets were investigated. In this study, 24 piglets were randomly assigned to weaning and suckling (control) groups. Weaning piglets were sacrificed on days 1, 4, and 7 post-weaning; suckling piglets were slaughtered at the corresponding time points. Blood samples and internal organs were collected for the determination of hematological traits, relative organ weights, and serum biochemical, antioxidant, enzyme, and immune indexes. The results revealed that piglets' growth performance significantly decreased on days 4 and 7 post-weaning. White blood cell and lymphocyte counts changed on...
Genetic relationship between management units of Czech dam pig breeds based on various types of data and pedigree informationOriginal Paper
E. Krupa, E. Žáková, Z. Krupová, R. Kasarda, A. Svitáková
Czech J. Anim. Sci., 2016, 61(2):91-97 | DOI: 10.17221/8732-CJAS
Knowledge of genetic relationship is an important control mechanism for animal performance-testing schemes. Genetic relationship between and within pig herds was calculated for two dam breeds, Czech Large White (CLW) and Czech Landrace (CLA). The impacts of different field data types (production and reproduction) and various numbers of generations within the pedigrees on genetic relationship were studied. The degree of genetic relationship between analyzed herds was generally low. It ranged from 1.01% (for CLW based on reproduction data and considering three generations of ancestors within the pedigree) to 2.57% (for CLA based on production data with...