Publications by authors named "Z Varadyova"

Greenhouse gas (GHG) emissions from livestock ruminants, particularly methane (CH), nitrous oxide, and indirectly ammonia (NH) significantly contribute to climate change and global warming. Conventional monoculture swards for cattle feeding, such as perennial ryegrass or Italian ryegrass, usually require substantial fertiliser inputs. Such management elevates soil mineral nitrogen levels, resulting in GHG emissions and potential water contamination.

View Article and Find Full Text PDF
Article Synopsis
  • Zinc nanoparticles (Zn-NPs) were tested as a feed supplement in lambs to see how they affect ruminal fermentation, microbiota, and histopathology over various durations.
  • The results showed that both ZnO-NP and Zn phosphate-NP improved dry matter digestibility and altered the bacterial population, with ZnO-NP showing beneficial effects on ammonia concentration and enzyme activities.
  • The study concluded that Zn-NP supplementation for up to 70 days enhanced feed efficiency and influenced rumen health, leading to observable changes in the ruminal epithelium and tissue structure.
View Article and Find Full Text PDF

In this paper, the growth requirements, fermentation pattern, and hydrolytic enzymatic activities of anaerobic ciliates collected from the hindgut of the African tropical millipede are described. Single-cell molecular analysis showed that ciliates from the millipede hindgut could be assigned to the and a new species named n. sp.

View Article and Find Full Text PDF

We evaluated the effects of dietary supplementation with medicinal plants (Herbmix) or organic selenium (Selplex) on the immune responses and histopathology of lambs infected with . Twenty-seven lambs were infected and reinfected with approximately 11,000 third-stage larvae of during the experiment (on days 0, 49 and 77). Lambs were divided into two supplemented experimental groups (Herbmix and Selplex) and unsupplemented group (Control).

View Article and Find Full Text PDF

Our study analyzed the parasitological status, antibody responses, and antioxidant parameters of lambs experimentally infected with a gastrointestinal nematode during the consumption of sainfoin pellets (SFPs) for 14 d. Twenty-four lambs infected with Haemonchus contortus were separated into two groups: untreated animals (control) and animals treated with SFPs (600 g dry matter/d). SFP treatment began on day (D) 30 post-infection.

View Article and Find Full Text PDF