| Basic data |
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| OCA1. Surname awarded to the assessed person | Marcin |
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| OCA2. Name awarded to the assessed person | Andrej |
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| OCA3. Degrees awarded to the assessed person | Assoc. prof. , B.Sc., DVM, CSc. |
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| OCA4. Hyperlink to the entry of the person in the Register of university staff | https://www.portalvs.sk/regzam/detail/6166 |
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| OCA5. Area of assessment | study programme nutrition of animals and dietetics · III. degree |
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| OCA6. Category of the research/artistic/other output | scientific output |
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| OCA7. Year of publication of the research/artistic/other output | 2020 |
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| OCA8. ID of the record in the Central Registry of Publication Activity (CRPA) or the Central Registry of Artistic Activity (CRAA) | ID = 169343 |
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| OCA9. Hyperlink to the record in CRPA or CRAA | https://app.crepc.sk/?fn=detailBiblioForm&sid=DD8DDAB5DB598AB39F572D474D |
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| Characteristics of the output that is not registered in CRPA or CRAA |
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| OCA10. Hyperlink to the record in another publicly accessible register, catalogue of research/ artistic/other outputs | DOI: 10.15547/bjvm.2199 |
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| OCA11. Characteristics of the output in the format of the CRPA or the CRAA bibliographic record, if the output is not available in a publicly accessible register or catalogue of outputs | ADM - MARCIN, Andrej - BUJŇÁK, Lukáš - MIHOK, Tomáš - NAĎ, Pavel. Effects of humic substances with urea on protozoal population and fermentation in the rumen of sheep. In: Bulgarian Journal of Veterinary Medicine. 2020. ISSN 1311-1477, Vol. 23, no. 1 (2020), p. 60-69. (10 - H-index, 0.211 - SJR, Q3 - SJR Best Q) |
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| OCA12. Type of the output (if the output is not registered in CRPA or CRAA) | article |
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| OCA13. Hyperlink to the webpage where the output is available (full text, other documentation, etc.) | http://tru.uni-sz.bg/bjvm/BJVM-March%202020%20p.60-69.pdf |
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| OCA14. Characteristics of the author's contribution | The first author analyzed the influence of humic substances on the qualitative and quantitative representation of rumen protozoa, as well as the influence on amylolytic and cellulolytic activity. |
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| OCA15. Annotation of the output with contextual information concerning the description of creative process and the content of the research/artistic/other activity, etc. | The aim was to investigate the effects of humic substances (HS) combined with urea, on pH, ammonia, total volatile fatty acids (∑VFA), protozoal population, amylolytic and cellulolytic activities in rumen fluid (RF) of 12 female crossbred merino sheep (n = 6 in experimental EG and control CG groups). The basic daily ration consisted of 1.25 kg grass hay, 0.25 kg cereal grains – equally wheat and barley (daily intake of crude protein 113.45 g, crude fibre 394.19 g, crude fat 17.27 g and ash 71.85 g) and 10 g urea. HS were applied at 20 g.day-1 per animal in EG on day 2–18. Increased protozoal cells (P |
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| Other data |
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| OCA16. Annotation of the output in English | The dietary intake of HS combined with urea significantly increased NH3 content in RF without significant effects on pH and negative effects on ∑VFA values. The positive effects of additives were observed on the ruminal populations of Entodinium spp., Diplodinium spp. and Ophryoscolex spp., and on RF amylolytic and cellulolytic activities. |
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| OCA17. List of maximum 5 most significant citations corresponding to the output | 2022 01 (SCOPUS:2-s2.0-85145478825) 1049059: Does humate supplementation affect ciliate population and fermentation parameters in the sheep rumen? / Majewska, M. P. [Autor, 20%] ; Kędzierska, A. [Autor, 20%] ; Miltko, R. [Autor, 20%] ; Bełżecki, G. [Autor, 20%] ; Kowalik, B. [Autor, 20%]. – DOI 10.22358/jafs/153957/2022. – SCO In: Journal of Animal and Feed Sciences [textový dokument (print)] [elektronický dokument] : a scientific journal of the Polish Academy of Sciences. – Jabłonna (Poľsko) : Polska Akademia Nauk. Instytut Fizjologii i Żywienia Zwierząt im Jana Kielanowskiego. – ISSN 1230-1388. – Roč. 31, č. 4 (2022), s. 371-378 [tlačená forma] [online]
2021 01 (SCOPUS:2-s2.0-85108884202; Web of Science Core Collection:WOS:000675937000001) 456398: The Effect of Humic Mineral Substances from Oxyhumolite on the Coagulation Properties and Mineral Content of the Milk of Holstein-Friesian Cows / Teter, Anna [Autor, 16.667%] ; Kedzierska-Matysek, Monika [Autor, 16.667%] ; Barlowska, Joanna [Autor, 16.666%] ; Krol, Jolanta [Autor, 16.667%] ; Brodziak, Aneta [Autor, 16.666%] ; Florek, Mariusz [Autor, 16.667%]. – DOI 10.3390/ani11071970. – WOS CC ; SCO In: Animals [elektronický dokument] . – Bazilej (Švajčiarsko) : Molecular Diversity Preservation International. – ISSN (online) 2076-2615. – Roč. 11, č. 7 (2021), [online] |
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| OCA18. Characteristics of the output's impact on socio-economic practice | Humic substances are natural organic compounds that are formed by the decomposition of organic matter and have applications in various fields, including agriculture and animal production. Their addition to feed for ruminants such as sheep can affect rumen fermentation processes and protozoan populations, which in turn have an impact on animal production and health.
A study focusing on the effect of humic substances in combination with urea on pH, ammonia content, total volatile fatty acids (∑VFA), protozoan populations, and amylolytic and cellulolytic activity in the rumen of sheep showed that this combination can positively affect fermentation processes. Specifically, the addition of humic substances with urea led to an improvement in rumen fermentation parameters, which may have a positive impact on nutrient utilization and overall animal health.
Improving rumen fermentation processes can lead to more efficient feed utilization, which is important for reducing feed costs and increasing milk or meat production. In addition, optimizing fermentation can reduce methane production, which has a positive impact on the environment. Implementing humic substances with urea into feed rations can also contribute to improving animal health, which is crucial for sustainable and efficient animal production.
Given these findings, it is possible to recommend the inclusion of humic substances in combination with urea into sheep feed rations in order to improve rumen fermentation processes, increase production and support overall animal health. This approach can have a positive impact on the economic efficiency of farms and contribute to the sustainability of agricultural practices. |
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| OCA19. Characteristics of the output and related activities' impact on the educational process | The methodology and experimental results obtained from testing the effects of humic substances on the protozoan population and amylolytic and cellulolytic activity in the rumen fluid of sheep in a feeding experiment can be used in the educational process and also in the preparation of students\' final theses. |
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