Czech Journal of Animal Science, 2019 (vol. 64), issue 3

Effects of dietary manganese on antioxidant status, biochemical parameters and thickness of intestinal mucus in laying hensOriginal Paper

Elena Piešová, Zita Faixová, Zuzana Maková, Katarína Venglovská, Ľubomíra Grešáková, Štefan Faix, Klaudia Čobanová

Czech J. Anim. Sci., 2019, 64(3):99-106 | DOI: 10.17221/148/2018-CJAS  

The objective of this study was to investigate the effects of different sources of manganese (Mn) on the antioxidant status, some biochemical parameters and thickness of intestinal mucus in laying hens. Ninety-six 20-week-old hens of the Lohman Brown strain were randomly divided into four groups; each group was replicated six times with four hens per replicate. Hens in the control group were fed the basal diet (BD) with natural background Mn level of 45.5 mg/kg feed. For the three experimental groups, the BD was supplemented with 120 mg Mn/kg either from Mn-sulphate or Mn-chelate of protein hydrolysate (Mn-Bioplex) or Mn-chelate of glycine hydrate...

The importance of hoof health in dairy productionOriginal Paper

Lenka Krpálková, Victor E. Cabrera, Ludmila Zavadilová, Miloslava Štípková

Czech J. Anim. Sci., 2019, 64(3):107-117 | DOI: 10.17221/27/2018-CJAS  

The objective of this study was to evaluate the association of hoof health on reproduction and production performance, somatic cell count, and longevity in dairy cattle. The data set consisted of records from 19 145 dairy cows at 11 dairy farms in the Czech Republic during years 1998 to 2016. Observations were grouped according to the number of hoof disease (HD) incidence. Each record included a binary variable indicating if HD was observed. The prevalence (% of all cows) observed with HD and its changes according to parity, milk yield, and calving interval were calculated. Great variability among farms was observed. HD detected in the first month...

Effect of inbreeding on fertility traits in five dog breedsOriginal Paper

Joanna Kania-Gierdziewicz, Sylwia Pałka

Czech J. Anim. Sci., 2019, 64(3):118-129 | DOI: 10.17221/104/2017-CJAS  

The aim of the study was to analyze retrospectively the influence of inbreeding on fertility traits in five dog breeds: German Shepherd dog (GSD), Golden (GR) and Labrador (LR) Retrievers, Beagle and the Tatra Shepherd dog (TSD). The data were 436 litters, with the total of 2560 puppies: 1307 males and 1206 females. The parents of the litters were 163 dogs and 228 bitches. For each litter the litter size, number of male and female puppies, sex ratio, and sex difference were calculated. The fixed effects of breed, of litter birth year and linear regression coefficients on litter and parents' inbreeding were included in the linear model for litter traits....

Free amino acid concentration in serum and trapezius muscle from male and female silver foxes (Vulpes vulpes)Original Paper

Iwona Łuszczewska-Sierakowska, Marcin R. Tatara, Maria Szpetnar, Jacek Kurzepa

Czech J. Anim. Sci., 2019, 64(3):130-140 | DOI: 10.17221/42/2018-CJAS  

Serum and muscle concentrations of 29 amino acids were determined in Silver fox. Serum concentrations of proline, alanine, tyrosine and aromatic amino acids were significantly higher in males than in females (all P = 0.05). Taurine and glycine concentrations in skeletal muscles were significantly higher in males than in females (P < 0.01). Muscle concentrations of cysteic acid, taurine, aspartate, threonine, serine, glycine, alanine, citruline, valine, leucine, gamma-amino-butyrate, ethanoloamine, lysine and histidine were significantly higher than in serum in both sexes (P < 0.05). In females, the concentrations of...

Effect of including different levels of moringa (Moringa oleifera) leaf meal in the diet of finishing pigs: Performance, pork quality, fatty acid composition, and amino acid profileOriginal Paper

Tingting Zhang, Bingwen Si, Yan Tu, Kai Cui, Chaolong Zhou, Qiyu Diao

Czech J. Anim. Sci., 2019, 64(3):141-149 | DOI: 10.17221/204/2018-CJAS  

A total of 144 cross-bred (Duroc × Landrace × Yorkshire) finishing pigs with a similar initial weight (65.4 ± 1.03 kg) were used to investigate the effect of moringa leaf meal on growth performance, meat quality, fatty acid composition, and amino acid profile. The moringa leaf meal-inclusion rates were 0% (M0 or control), 3% (M3), 6% (M6) and 9% (M9). The results showed that supplementing moringa leaf meal significantly increased the daily weight gain of finishing pigs, but had a minor impact on pork quality indicators and the amino acid profile in the Longissimus dorsi. The fatty acid profile in the Longissimus dorsi was significantly...