V3 - HREŠKO ŠAMUDOVSKÁ, Alena - BUJŇÁK, Lukáš - MARCIN, Andrej - MIHOK, Tomáš - HARČÁROVÁ, Michaela - ZÁBRANSKÝ, Luboš - NAĎ, Pavel. Influence of humic substances on growth performance and blood serum parameters in fattening turkeys. In: Polish Journal of Veterinary Sciences. 2024. ISSN 1505-1773, Vol. 27, no. 2 (2024), p. 165-172. (2022: 0.800 - IF, 32 - H-index, 0.900 - IF 5y, 0.242 - SJR, Q3 - SJR Best Q, Q3 - JCR Best Q)

Basic data
OCA1. Surname awarded to the assessed personMarcin
OCA2. Name awarded to the assessed personAndrej
OCA3. Degrees awarded to the assessed personAssoc. prof. , B.Sc., DVM, CSc.
OCA4. Hyperlink to the entry of the person in the Register of university staffhttps://www.portalvs.sk/regzam/detail/6166
OCA5. Area of assessmentstudy programme nutrition of animals and dietetics · III. degree
OCA6. Category of the research/artistic/other output
OCA7. Year of publication of the research/artistic/other output2024
OCA8. ID of the record in the Central Registry of Publication Activity (CRPA) or the Central Registry of Artistic Activity (CRAA)ID = 1179013
OCA9. Hyperlink to the record in CRPA or CRAAhttps://app.crepc.sk/?fn=detailBiblioForm&sid=3D317B62F21FC1F8006ACFC30134
Characteristics of the output that is not registered in CRPA or CRAA
OCA10. Hyperlink to the record in another publicly accessible register, catalogue of research/ artistic/other outputsDOI: 10.24425/pjvs.2024.149346
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 outputsV3 - HREŠKO ŠAMUDOVSKÁ, Alena - BUJŇÁK, Lukáš - MARCIN, Andrej - MIHOK, Tomáš - HARČÁROVÁ, Michaela - ZÁBRANSKÝ, Luboš - NAĎ, Pavel. Influence of humic substances on growth performance and blood serum parameters in fattening turkeys. In: Polish Journal of Veterinary Sciences. 2024. ISSN 1505-1773, Vol. 27, no. 2 (2024), p. 165-172. (2022: 0.800 - IF, 32 - H-index, 0.900 - IF 5y, 0.242 - SJR, Q3 - SJR Best Q, Q3 - JCR Best Q)
OCA12. Type of the output (if the output is not registered in CRPA or CRAA) article
OCA13. Hyperlink to the webpage where the output is available (full text, other documentation, etc.)https://journals.pan.pl/dlibra/publication/149346/edition/131635/content
OCA14. Characteristics of the author's contributionThe third author actively contributed to the course of the turkey experiment in the determination of production parameters.
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 present study was conducted to evaluate the effect of humic substances on performance and selected blood biochemical parameters in turkeys. A total of twenty 6-week-old turkey hybrids (Big 6) were divided into two groups. The first group of turkeys was fed the basal diet without any supplementation of humic substances as a control group. The second group was fed the basal diet supplemented with 5 g of humic substances per kg of diet. The study lasted 35 days, until the 11th week of age of the turkeys. The addition of humic substances had no effect on the live body weight, body weight gain, feed intake, feed conversion ratio, or growth rate of turkeys. Similarly, the monitored blood biochemical parameters, except for the levels of P, Mg, and Na, were not significantly affected by the addition of humic substances. The addition of humic substances led to a significant decrease in the concentration of P (p˂0.05), Mg (p˂0.05), and Na (p˂0.01) in the blood serum of turkeys. It was concluded that the addition of humic substances may lead to a reduction of some mineral substances in the blood of animals, which may be due to their chelating effects. This may indicate a reduced availability of some biologically important minerals for the body, which could subsequently manifest itself in some health issues and a decrease in animal production. During the duration of our study, there were no signs of disturbance in the health of the animals. In view of the achieved results, further studies will be necessary to determine the appropriate concentration and duration of administration of the monitored preparation and to evaluate its influence on the availability of nutrients and feed conversion and its possible use as a safe non-antibiotic growth stimulator in turkey nutrition.
Other data
OCA16. Annotation of the output in EnglishIn conclusion, the addition of humic substances to the feed in the amount of 5 g/kg did not have a significant effect on the observed production parameters, such as live weight of turkeys, weight gains, feed intake, feed conversion, and growth rate. However, it led to a significant reduction of phosphorus, magnesium, and sodium in the blood serum of turkeys. In view of the achieved results, further studies will be necessary to determine the appropriate concentration and duration of administration of the monitored preparation and to evaluate its influence on the availability of nutrients and feed conversion and its possible use as a safe non-antibiotic growth stimulator in turkey nutrition.
OCA17. List of maximum 5 most significant citations corresponding to the output
OCA18. Characteristics of the output's impact on socio-economic practiceExperimental results of testing the effects of humic substances in fattening turkeys with the aim of determining their impact on production parameters and selected blood values ​​have the potential to be used in farm conditions with economic benefits in connection with better feed utilization.
OCA19. Characteristics of the output and related activities' impact on the educational processThe methodology and experimental results of testing the effects of humic substances in turkeys on production parameters and selected blood values ​​are usable in the theoretical educational process and also within the experimental activities of students in preparing experiments for final theses.

Last updated: 28.10.2026

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