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Czech Journal of Animal Science, 2023 (vol. 68), issue 7

Camelina sativa as a sustainable and feasible feedstuff for broiler poultry species: A reviewReview

Yazavinder Singh, Marco Cullere, Eva Tùmová, Antonella Dalle Zotte

Czech J. Anim. Sci., 2023, 68(7):277-295 | DOI: 10.17221/29/2023-CJAS  

Camelina sativa can be identified as a promising oilseed crop due to its short growth cycle, tolerance to drought and frost, low-input requirements, resistance to pests and diseases, feed, and non-feed applications. Compared to other Brassicaceae family plants, camelina is mainly distinguished by high levels of n-3 polyunsaturated fatty acids and antioxidant content. However, camelina contains secondary plant metabolites, such as glucosinolates, phytic acid, sinapine, etc., and their presence limits the use of camelina by-products (oil, seed or cake) in poultry feeding. The breakdown of these compounds forms complexes that can inhibit...

Dietary supplementation of natural tannin relieved intestinal injury and oxidative stress in piglets challenged with enterotoxigenic Escherichia coliOriginal Paper

Qian Zhang, Lin Zhang, Linxiao Du, Yanyan Zhang, Dan Yi, Di Zhao, Binying Ding, Yongqing Hou, Tao Wu

Czech J. Anim. Sci., 2023, 68(7):296-305 | DOI: 10.17221/148/2022-CJAS  

This study is to explore the effects of natural tannin (NBT) on intestinal injury in piglets challenged with enterotoxigenic Escherichia coli (ETEC). Thirty-two 7-day-old piglets were divided into four groups: I) control group, piglets were fed a basic diet without challenge; II) ETEC group, piglets were fed a basic diet and challenged with enterotoxigenic E. coli; III) NBT + ETEC group, piglets were fed a basic diet with supplementation of 2 g/kg NBT and challenged with enterotoxigenic E. coli; and IV) ZnO + ETEC group, piglets were fed a basic diet with supplementation of 3 g/kg ZnO and challenged with enterotoxigenic...

Experimental evaluation of milk yield and selected traits of milk quality in Clun Forest ewesOriginal Paper

Jan Kuchtík, Kvìtoslava ©ustová, Tomá¹ Kopec, Ferenc Pajor, Leona Koneèná

Czech J. Anim. Sci., 2023, 68(7):306-312 | DOI: 10.17221/221/2022-CJAS  

In general, it can be stated that the economics of non-dairy sheep breeding in the Czech Republic experienced a worsening trend in recent years. One of the ways to improve this situation is to use some of these breeds also for milk production. One of the possible breeds usable for milk production, especially for the good milk production of mothers, is the Clun Forest (CF). The aim of our experiment was to evaluate the daily milk yield (DMY) and the contents of fat (F), total protein (TP) and lactose (L), pH, titratable acidity (TA), concentration of urea (CU) and somatic cell count (SCC) in CF ewes during lactation. In our experiment, the following...

Temperature regulates fatty acid desaturase and elongase at the transcriptional level and modulates the fatty acid profile in the early stage of the common carp (Cyprinus carpio)Original Paper

Hong-Tao Ren, Shi-Yang Gao, Yong Huang, Xiao-Chan Gao

Czech J. Anim. Sci., 2023, 68(7):313-321 | DOI: 10.17221/22/2023-CJAS  

This study explored the regulatory effect of temperature stress on fatty acid biosynthesis in the early stage of common carp (Cyprinus carpio) based on Δ6-fatty acids desaturase (Δ6FAD) and elongase-5 (ELOVL5) gene expression and fatty acid composition. One-day-old carp larvae were selected, and after seven days of acclimatisation at 25 °C, the larvae were subjected to temperature stress for 96 h in water at 32 °C or 10 °C. In the post-larval stage, 30-day-old carp juveniles were selected and, after seven days of acclimatisation at 25 °C, were subjected to temperature stress for seven days in water at 32 °C or 10 °C....