Czech Journal of Animal Science, 2019 (vol. 64), issue 9
Effect of the composition of starter diet fed in the rearing phase on the performance and certain physiological parameters of Holstein calvesOriginal Paper
Szandra Tóth, Melinda Kovács, Brigitta Bóta, Judit Szabó-Fodor, Gábor Bakos, Hedvig Fébel
Czech J. Anim. Sci., 2019, 64(9):367-376 | DOI: 10.17221/34/2019-CJAS 
The objective of this study was to compare the effects of calf starters of different starch and fibre content on the growth, blood and rumen parameters of Holstein female calves during the pre-weaning period. A total of 60 calves were divided into two groups. Group A/B was fed according to a two-phase calf nutrition system: the calves received calf starter "A" (28.5% starch content, 16% neutral detergent fibre (NDF), 9.2% acid detergent fibre (ADF)) in days 7-45 and then calf starter "B" (14.2% starch content, 32.4% NDF, 14.3% ADF) in days 46-70. Calves of group B received calf starter "B" throughout the experimental period. The calves were weaned...
Genotype imputation strategies for Portuguese Holstein cattle using different SNP panelsOriginal Paper
Alessandra Alves Silva, Fabyano Fonseca Silva, Delvan Alves Silva, Hugo Teixeira Silva, Cláudio Napolis Costa, Paulo Sávio Lopes, Renata Veroneze, Gertrude Thompson, Julio Carvalheira
Czech J. Anim. Sci., 2019, 64(9):377-386 | DOI: 10.17221/120/2019-CJAS
Although several studies have investigated the factors affecting imputation accuracy, most of these studies involved a large number of genotyped animals. Thus, results from these studies cannot be directly applied to small populations, since the population structure affects imputation accuracy. In addition, factors affecting imputation accuracy may also be intensified in small populations. Therefore, we aimed to compare different imputation strategies for the Portuguese Holstein cattle population considering several commercially available single nucleotide polymorphism (SNP) panels in a relatively small number of genotyped animals. Data from 1359 genotyped...
Effect of probiotic Clostridium butyricum CBM 588 on microbiota and growth performance of broiler chickensOriginal Paper
Roman Svejstil, Vladimir Plachy, Miroslav Joch, Hana Salmonova, Dagmar Duskova, Veerle Hautekiet, Eva Vlkova
Czech J. Anim. Sci., 2019, 64(9):387-394 | DOI: 10.17221/143/2019-CJAS
Clostridium butyricum CBM 588 is used as a probiotic in eastern Asian countries and has been recently approved as an animal feed additive in the European Union. The purpose of this study was to evaluate the effect of C. butyricum MIYAIRI 588 (CBM 588) on abundance of selected genera of caecal and crop bacteria, volatile fatty acids and growth performance of broiler chickens. We studied counts of anaerobic bacteria in caeca and crops of broiler chickens by plate-count method and evaluated their growth performance. CBM 588 significantly reduced E. coli counts in caeca of broiler chickens at days 10 and 42 and also enhanced...
Egg yolk colour and retinol concentration of eggs from laying hens fed diets containing carrot and beetroot mealOriginal Paper
Laura Aline Zanelatto de Souza, Heder José D'Avila Lima, Renata Aparecida Martins, Andrey Sávio de Almeida Assunção, Donaldo Antônio Nunes Junior, Willian Ferreira Silva, Felipe Gomes da Silva
Czech J. Anim. Sci., 2019, 64(9):395-403 | DOI: 10.17221/54/2019-CJAS
Compounds such as pigments, antioxidants, and pro-vitamins A are found in carrots and beetroots and could increase the nutritional value of eggs when added to diets for laying hens. This research evaluated retinol concentrations and egg yolk colour with addition of freeze-dried carrot (Daucus carota L.) and beetroot (Beta vulgaris L.) meal in the diets of 240 Hisex Brown laying hens. The hens were distributed in a completely randomized design in five groups according to five experimental diets: (1) maize and soybean meal; (2) sorghum and soybean meal; (3) sorghum and soybean meal plus 0.8% of freeze-dried carrot meal; (4) sorghum...