Czech Journal of Animal Science, 2014 (vol. 59), issue 5
Copper metabolism in goat-kid relationship at supplementation of inorganic and organic forms of copperOriginal Paper
I. Páleníková, K. Hauptmanová, E. Pitropovská, T. Páleník, T. Husáková, A. Pechová, L. Pavlata
Czech J. Anim. Sci., 2014, 59(5):201-207 | DOI: 10.17221/7400-CJAS 
The aim of the experiment was to compare the effect of inorganic and organic forms of copper (Cu) supplementation on Cu status of goats and their kids, colostrum and milk composition and quality, and on the Cu concentrations in amniotic fluids and fetal membranes. The experiment involved 22 clinically healthy pregnant goats with similar mean Cu concentration in blood serum. Goats were divided into 3 groups: E1, E2, and C. Basal feed ration differed only in Cu form and concentration in a grain mixture. The goats of experimental groups E1 and E2 received the supplement of Cu sulfate and Cu chelate, respectively. Control group C was without Cu supplementation....
Response of pullets to digestible lysine intakeOriginal Paper
J.A. de Araujo, N.K. Sakomura, E.P. da Silva, J.C. De Paula Dorigam, D.C. Zanardo Donato, J.H.V. da Silva, J.B.K. Fernandes
Czech J. Anim. Sci., 2014, 59(5):208-218 | DOI: 10.17221/7401-CJAS
The objective was to determine the efficiency of utilization of lysine and to describe the responses of pullets to different digestible lysine intakes using three mathematical functions to estimate an optimal intake maximizing body weight gain and feed conversion ratio. The trials were conducted using 2-6-, 8-12-, and 14-18-week-old birds and a completely randomized experimental design with eight treatments and six replicates. The digestible lysine levels ranged 3.20-10.67 g/kg (in 2-6-week-old animals), 2.24-7.48 g/kg (in 8-12-week-old animals), and 1.73-5.78 g/kg (in 14-18-week-old animals) and were obtained using a dilution technique. The efficiency...
Influence of mating systems and selection intensity on the extent of inbreeding and genetic gain in the Slovak Pinzgau cattleOriginal Paper
R. Kasarda, G. Mészáros, O. Kadlečík, E. Hazuchová, V. ©idlová, I. Pavlík
Czech J. Anim. Sci., 2014, 59(5):219-226 | DOI: 10.17221/7402-CJAS
The aim of the present paper was to simulate the scenarios for a maximum avoidance of inbreeding (MAI) mating strategy, and compare it with a random mating alternative, with the main focus on inbreeding and development of the genetic gain. The parameters of the simulation were based on the structure of the Slovak Pinzgau active population of 2868 animals (930 purebred cows). The selection under a total merit index (TMI) was simulated, covering the milk, survival, and live weight breeding value estimation results. The heritability of TMI (h2 = 0.09) was estimated using a REML single trait animal model. Alternatives assumed a closed...
Associations of fifty single nucleotide polymorphisms within candidate genes with meatness in pigsOriginal Paper
A. Borowska, T. Szwaczkowski, M. Koćwin-Podsiadła, S. Kamiński, A. Ru¶ć, E. Krzęcio-Nieczyporuk
Czech J. Anim. Sci., 2014, 59(5):227-237 | DOI: 10.17221/7403-CJAS
The objective of the paper was to classify 50 SNPs (from 17 chromosomes) according to their contribution to the meatness of 293 boars of two breeds (Polish Landrace and Polish Large White) using entropy analysis and standard association analysis. The collected data were classified into two groups (according to the official EUROP procedure) and used for entropy analysis. Associations of single genotypes versus their groups (located at single chromosomes) with the trait studied were estimated by the use of the Generalized Linear Model (GLM). Thus meatness was included as a continuous variable. The most important contributions have been estimated by both...
Differential expression profiling of estrogen receptor in the ovaries of two egg duck (Anas platyrhynchos) breedsOriginal Paper
Y. Wu, H.W. Xiao, Z.H. Liang, A.L. Pan, J. Shen, J.S. Pi, Y.J. Pu, J.P. Du, Z.H. Chen
Czech J. Anim. Sci., 2014, 59(5):238-243 | DOI: 10.17221/7404-CJAS
In the present study, quantitative real-time PCR was employed to investigate expression profiling and expression difference of ESR1 and ESR2 in ovaries of Shaoxing duck and Jingjiang duck during three laying stages. Results showed the expression levels of ESR1 and ESR2 in ovaries were increased from the age of the first egg to the age of 500 days in both duck breeds. The expression of ESR1 in Shaoxing duck was lower than that in Jingjiang duck for the age of the first egg and of 180 days, and for the age of 500 days it was higher in Shaoxing duck than in Jingjiang duck. The ESR2 showed converse...
Imputation accuracy of bovine spongiform encephalopathy-associated PRNP indel polymorphisms from middle-density SNPs arraysOriginal Paper
A. Gurgul, K. Sieńko, K. Żukowski, K. Pawlina, M. Bugno-Poniewierska
Czech J. Anim. Sci., 2014, 59(5):244-249 | DOI: 10.17221/7405-CJAS
Statistical methods of imputation allow predicting genotypes of markers (which were not genotyped in the whole population) based on known linkage disequilibrium relationships between the flanking polymorphisms and the information obtained from reference datasets used as a pattern. In this study we attempted to predict genotypes of two bovine spongiform encephalopathy (BSE) susceptibility associated indel polymorphisms located in the promoter region of PRNP gene relying on the data obtained from middle density SNPs arrays in a sample of the population of Holstein cattle. The two SNPs panels spanning PRNP locus were tested in terms...