Czech Journal of Animal Science, 2024 (vol. 69), issue 5
A decision support system based on disease scoring enables dairy farmers to proactively improve herd healthOriginal Paper
Jan Saro, Luděk Stádník, Petra Bláhová, Simona Huguet, Helena Brožová, Jaromír Ducháček
Czech J. Anim. Sci., 2024, 69(5):165-177 | DOI: 10.17221/53/2024-CJAS 
Decision support systems (DSSs) enable dairy farmers to make informed and timely decisions on herd health management. However, the lack of a disease scoring system by category and severity limits the application of this approach. In this study, we developed an innovative approach to dairy herd health management by establishing a novel scoring system for dairy herd health management aimed at providing a more nuanced understanding of disease impact. For this purpose, we retrieved 5-year data from 2 558 disease diary records of 798 primiparous and multiparous cows housed on a Czech farm and classified 125 production diseases into six categories, namely...
In vitro and in sacco evaluation of total mixed ration silage added different levels of chitosanOriginal Paper
Ayu Septi Anggraeni, Anuraga Jayanegara, Ahmad Sofyan, Erika Budiarti Laconi, Nur Rochmah Kumalasari, I Nyoman Gunadarma, Hendra Herdian, Rusli Fidriyanto
Czech J. Anim. Sci., 2024, 69(5):178-190 | DOI: 10.17221/173/2023-CJAS
This experiment aimed to evaluate the effects of chitosan administration to total mixed ration (TMR) silage on ruminal fermentation characteristics and degradability by using both in vitro and in sacco methods. The completely randomized design (CRD) used in this study included five treatments and six replications. The treatments consisted of TMR silage with distilled water as control (SA), TMR with 1% acetic acid (SB), 0.5% chitosan in 1% acetic acid diluent (SC), 1% chitosan in 1% acetic acid diluent (SD), and 1.5% chitosan in 1% acetic acid diluent (SE). The variables observed were ruminal fermentation parameters, methane production...
High percentage of morphological defects in sperm of the Zemplin rabbit breed: A major obstacle to fertility?Original Paper
Jakub Vozaf, Andrea Svoradová, Jaromír Vašíček, Lucia Olexiková, Andrej Baláži, Hana Ďuránová, Alexander Ostró, Silvia Toporcerová, Peter Chrenek
Czech J. Anim. Sci., 2024, 69(5):191-199 | DOI: 10.17221/29/2024-CJAS
This research investigates the high prevalence of morphological defects in the sperm of a particular rabbit breed, namely the Zemplin rabbit (ZR). We tried to uncover the possible causes and consequences of the observed abnormalities. Ejaculate samples from ten adult males were divided into two qualitative groups according to the motility parameters revealed by CASA (computer-assisted sperm analysis). Group A contained samples with total motility (TM) above 50% and progressive motility (PM) above 30%. Group B contained samples with TM and PM below these values. Viability (SYBR-14/DRAQ5TM and SYTOXTM Green/DRAQ5TM staining)...
Meta-analysis of genetic parameters for productive traits in Nile tilapia (Oreochromis niloticus)Original Paper
Elizangela Zayana Lima D'suze, Nandrya Hayne Santos de Lima, Denise de Assis Paiva, Nilsa Duarte da Silva Lima, Thalles Ribeiro Gomes, José Teodoro de Paiva
Czech J. Anim. Sci., 2024, 69(5):200-208 | DOI: 10.17221/6/2024-CJAS
The advances in the production traits of Oreochromis niloticus are due to the development of genetically superior broodstock animals. Understanding the genetic variability of fish stocks is crucial to any animal breeding program. The aim of this study was to perform a meta-analysis of genetic parameters that considers the variability between studies for economically important traits in the Nile tilapia (Oreochromis niloticus) production. The final dataset from literature review contained 226 estimates of heritability and 53 estimates of genetic correlation across 37 peer-reviewed articles published between 2002 and 2022. Weighted genetic...
Corrigendum: Protective effects of green tea (Camellia sinensis) extract against cypermethrin-induced neurotoxicity in rainbow trout (Oncorhynchus mykiss) brain tissuesCorrigendum
Murteza Cakir
Czech J. Anim. Sci., 2024, 69(5):209 | DOI: 10.17221/83/2024-CJAS