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Czech Journal of Animal Science, 2014 (vol. 59), issue 12

Volume 59, Contents Author Index 2014Index

editors

Czech J. Anim. Sci., 2014, 59(12):I-VIII | DOI: 10.17221/7798-CJAS  

Analyses of genetic relationships between linear type traits, fat-to-protein ratio, milk production traits, and somatic cell count in first-parity Czech Holstein cowsOriginal Paper

V. Zink, L. Zavadilová, J. Lassen, M. Štípková, M. Vacek, L. Štolc

Czech J. Anim. Sci., 2014, 59(12):539-547 | DOI: 10.17221/7793-CJAS  

Genetic and phenotypic correlations between production traits, selected linear type traits, and somatic cell score were estimated. The results could be useful for breeding programs involving Czech Holstein dairy cows or other populations. A series of bivariate analyses was applied whereby (co)variance components were estimated using average information (AI-REML) implemented via the DMU statistical package. Chosen phenotypic data included average somatic cell score per a 305-day standard first lactation as well as the production traits milk yield, fat yield, protein yield, fat percentage, and protein percentage per the standard first lactation. Fifteen...

Impact of cadmium on the level of hepatic metallothioneins, essential elements, and selected enzymes in the experimental rat modelOriginal Paper

J. Zídková, M. Melčová, K. Bartošová, I. Šestáková, V. Zídek, J. Száková, D. Miholová, P. Tlustoš

Czech J. Anim. Sci., 2014, 59(12):548-556 | DOI: 10.17221/7794-CJAS  

The response of different strains of laboratory rats (Rattus norvegicus L.) on both acute (via intraperitoneal injection) and chronic (via drinking water and/or diet) cadmium intoxication was investigated in the model study. The rat strains Long Evans (LE), Spontaneously hypertensive rat (SHR), and Brown Norway (BN) were tested and compared, and total Cd levels and metallothionein (MT) concentrations were determined in the liver of experimental animals. The liver MT concentrations were determined by using adsorptive chronopotentiometry and modified Brdička reaction and were significantly correlated (r = 0.965) with...

Effect of dietary glycerin supplementation in the starter diet on broiler performanceOriginal Paper

J.R. Henz, R.V. Nunes, C. Eyng, P.C. Pozza, R. Frank, R.A. Schone, T.M.M. Oliveira

Czech J. Anim. Sci., 2014, 59(12):557-563 | DOI: 10.17221/7795-CJAS  

This study was conducted to evaluate the performance, carcass composition, and litter moisture of broiler chicks fed crude glycerin for 1-21 days. The study used 1056 male birds distributed in a completely randomized design, with six treatments (0, 3, 6, 9, 12, and 15% crude glycerin from 1 to 10 days), with eight replicates. After the 10th day, each treatment group was divided into two groups out of which one continued to receive the same glycerin level and the second group started to receive a glycerin-free diet. The parameters weight gain, feed intake, feed : gain, and livability during the first 10 days exhibited a quadratic response...

Effect of melamine and cyanurid acid contaminated diets on blood indicators in broiler chickensOriginal Paper

E. Straková, K. Karásková, D. Zapletal, P. Suchý

Czech J. Anim. Sci., 2014, 59(12):564-570 | DOI: 10.17221/7796-CJAS  

The effect of melamine and cyanuric acid contaminated diets on basic haematological and biochemical blood indicators in male broiler chickens (Ross 308) was studied. The chickens were divided into 6 experimental groups (30 birds per group) and fed diets with an addition of 50 or 100 mg of melamine or 50 or 100 mg of cyanuric acid per kg of feed, with the contaminants added separately (either melamine or cyanuric acid) or in combination (melamine + cyanuric acid). The control group (C) was fed a diet without melamine or cyanuric acid. At the end of the experiment (day 40), 8 birds per treatment group were randomly selected for haematological and biochemical...

Comparison of different forms of dietary selenium supplementation on gene expression of cytoplasmic thioredoxin reductase, selenoprotein P, and selenoprotein W in broilersOriginal Paper

X.A. Zhan, H.F. Wang, D. Yuan, Y.X. Wang, F. Zhu

Czech J. Anim. Sci., 2014, 59(12):571-578 | DOI: 10.17221/7797-CJAS  

Effects of different forms of dietary selenium (Se) supplementation on gene expression of cytoplasmic thioredoxin reductase (TrxR1), selenoprotein P (SelP), and selenoprotein W (SelW) in broilers were investigated. A total of six hundred Ross 308 broilers (1-day-old) with similar body weight were randomly divided into three groups, each of which included 5 replicates of 40 birds. These three treatments received the same basal diet with only background Se level of 0.04 mg Se/kg, supplemented with 0.15 mg Se/kg as sodium selenite (SS) or l-selenomethionine (l-Se-Met) or d-selenomethionine (d-Se-Met) for 42 days. The SS supplemented...