Azon publikációk listája, ahol a HUMAC s.r.o. termékeit használták:
1.
Ondrašovičová, Silvia; Zigo, František; Gogoľa, Július; Lacková, Zuzana; Farkašová, Zuzana; Arvaiová, Juliana; Almášiová, Viera; Rehan, Ibrahim F.
The effects of humic acids on the early developmental stages of African cichlids during artificial breeding Journal Article
In: life, vol. 13, iss. 5, pp. 1071, 2023.
@article{nokey,
title = {The effects of humic acids on the early developmental stages of African cichlids during artificial breeding},
author = {Silvia Ondrašovičová and František Zigo and Július Gogoľa and Zuzana Lacková and Zuzana Farkašová and Juliana Arvaiová and Viera Almášiová and Ibrahim F. Rehan},
doi = {10.3390/life13051071},
year = {2023},
date = {2023-04-23},
journal = {life},
volume = {13},
issue = {5},
pages = {1071},
abstract = {The aim of this study was to compare the effect of humic acid (HA) obtained by extraction from alginate on the incubation of roes and fry development in African cichlids, Labidochormis caeruleus, as well as their influence on the stabilization of the physicochemical parameters of water in an aquarium during artificial breeding. The roes were obtained by extruding from a female buccal cavity immediately after fertilization. For the experiment, 4 groups of 40 roes were formed in an incubator with an artificial hatchery. Groups 1–3 were exposed to 1%, 5%, and 10% concentrations of HA, respectively. The control group C was not exposed to HA. In all groups, the mortality and size differences of the fry, as well as the temperature, pH, hardness, nitrite, and nitrate levels in the tanks, were determined during a 30-day monitoring period until the resorption of the yolk sac. The results of this study indicated the ability of HA in 5% and 10% concentrations to reduce nitrite and nitrate levels in the aquatic environment, which significantly reduced the mortality of roes and the survivability of the fry. The determination of the morphological measurements of the fry revealed an increased body length in the groups exposed to 5% and 10% HA concentrations compared to the control group by the end of the monitored period. It was also noted that the yolk sac was resorbed two days earlier in the same groups than in the control. Thus, the results showed that HAs are suitable for use in the artificial aquarium incubation of roes and fry development, which are increasingly exposed to adverse environmental factors. The knowledge obtained in this study and its transfer into practice can allow even less experienced aquarists to successfully breed aquarium fish species that could not normally be bred under artificial conditions without the addition of HA.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The aim of this study was to compare the effect of humic acid (HA) obtained by extraction from alginate on the incubation of roes and fry development in African cichlids, Labidochormis caeruleus, as well as their influence on the stabilization of the physicochemical parameters of water in an aquarium during artificial breeding. The roes were obtained by extruding from a female buccal cavity immediately after fertilization. For the experiment, 4 groups of 40 roes were formed in an incubator with an artificial hatchery. Groups 1–3 were exposed to 1%, 5%, and 10% concentrations of HA, respectively. The control group C was not exposed to HA. In all groups, the mortality and size differences of the fry, as well as the temperature, pH, hardness, nitrite, and nitrate levels in the tanks, were determined during a 30-day monitoring period until the resorption of the yolk sac. The results of this study indicated the ability of HA in 5% and 10% concentrations to reduce nitrite and nitrate levels in the aquatic environment, which significantly reduced the mortality of roes and the survivability of the fry. The determination of the morphological measurements of the fry revealed an increased body length in the groups exposed to 5% and 10% HA concentrations compared to the control group by the end of the monitored period. It was also noted that the yolk sac was resorbed two days earlier in the same groups than in the control. Thus, the results showed that HAs are suitable for use in the artificial aquarium incubation of roes and fry development, which are increasingly exposed to adverse environmental factors. The knowledge obtained in this study and its transfer into practice can allow even less experienced aquarists to successfully breed aquarium fish species that could not normally be bred under artificial conditions without the addition of HA.
2.
Zigo, František; Šamudovská, Alena Hreško; Bujňák, Lukáš
Carcass Characteristic, Caecal Metabolites and Dropping Quality in Broiler Chickens Fed Diets Containing a Humic Substances Journal Article
In: Asian Journal of Agriculture and Food Sciences, vol. 10, iss. 6, pp. 133-138, 2023.
@article{nokey,
title = {Carcass Characteristic, Caecal Metabolites and Dropping Quality in Broiler Chickens Fed Diets Containing a Humic Substances},
author = {František Zigo and Alena Hreško Šamudovská and Lukáš Bujňák},
doi = {10.24203/ajafs.v10i6.7116},
year = {2023},
date = {2023-01-01},
journal = {Asian Journal of Agriculture and Food Sciences},
volume = {10},
issue = {6},
pages = {133-138},
abstract = {The objective of the study was to determine the effect of humic substances added to diets on carcass characteristics, weight of visceral organs, fermentation process in the caecum and excretion of dry matter and crude protein in broiler chicks. One hundred one day old broiler chicks were assigned in two equal groups. Birds of the experimental group were fed with diets supplemented with humic substances (in amount: 5 g.kg-1 during the first two weeks and 7 g.kg-1 from the 3rd to the 6th week). No significant effect of humic substances supplementation was observed on carcass characteristics (carcass weight, carcass yield, abdominal fat pad) as well as the relative weight of the liver, the heart, the spleen and the bursa of Fabricius. On the other hand, in the experimental group was found significantly higher relative weight of the pancreas (P < 0.05). Also, the concentration of short-chain fatty acids in the caecum content was not significantly affected, but tested substance lowered the pH value in caecum (P < 0.05). Significantly lover content of crude protein (P < 0.05) and also significantly higher concentration of dry matter (P < 0.01) in the droppings of chicks was found in experimental group than in the control group. It was concluded that the addition of humic substances to the diets can contribute to reducing the burden on the environment from poultry farms.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The objective of the study was to determine the effect of humic substances added to diets on carcass characteristics, weight of visceral organs, fermentation process in the caecum and excretion of dry matter and crude protein in broiler chicks. One hundred one day old broiler chicks were assigned in two equal groups. Birds of the experimental group were fed with diets supplemented with humic substances (in amount: 5 g.kg-1 during the first two weeks and 7 g.kg-1 from the 3rd to the 6th week). No significant effect of humic substances supplementation was observed on carcass characteristics (carcass weight, carcass yield, abdominal fat pad) as well as the relative weight of the liver, the heart, the spleen and the bursa of Fabricius. On the other hand, in the experimental group was found significantly higher relative weight of the pancreas (P < 0.05). Also, the concentration of short-chain fatty acids in the caecum content was not significantly affected, but tested substance lowered the pH value in caecum (P < 0.05). Significantly lover content of crude protein (P < 0.05) and also significantly higher concentration of dry matter (P < 0.01) in the droppings of chicks was found in experimental group than in the control group. It was concluded that the addition of humic substances to the diets can contribute to reducing the burden on the environment from poultry farms.
3.
Lacková, Zuzana; Zigo, František; Farkašová, Zuzana; Ondrašovičová, Silvia
In: Life, vol. 12, no. 7, pp. 1016, 2022, ISSN: 2075-1729.
@article{nokey,
title = {The Effect of Humic Substances as an Organic Supplement on the Fattening Performance, Quality of Meat, and Selected Biochemical Parameters of Rabbits},
author = {Zuzana Lacková and František Zigo and Zuzana Farkašová and Silvia Ondrašovičová},
doi = {10.3390/life12071016},
issn = {2075-1729},
year = {2022},
date = {2022-07-08},
urldate = {2022-07-08},
journal = {Life},
volume = {12},
number = {7},
pages = {1016},
abstract = {In this study, we assessed the effect of humic substances, as an organic supplement in feed, on the fattening performance, meat quality and selected lipid and mineral parameters from the blood serum of rabbits. Three groups of the Giant Saris rabbit breed were used (one control and two experimental), with 16 animals per group. The animals in the control group were fed a standard pellet diet, the humic substances group received a basal diet supplemented with 5% humic substances, and the third group received a basal diet with 5% humic–fatty substances preparation during the entire experiment (from 35 to 120 days of age). There were 85 days of fattening; then, the rabbits were slaughtered. In the group supplemented with 5% humic–fatty substances addition, we noticed a higher final weight (p < 0.05) and higher average daily gains compared to the control group at the end of the fattening period, at 120 days of age. On the other hand, a slightly lower final weight (p > 0.05) in the group supplemented with humic substances was found compared to the control group. In the comparison of the individual parameters of the meat quality in rabbits, we observed a positive effect in the reduction in the intramuscular fat content and the lipid parameters as well as a lower total cholesterol from the blood serum in both supplemented groups. Regarding the mineral parameters, we observed elevated blood serum values of calcium and phosphorus in both experimental groups. The addition of humic–fatty substances appears to be the most effective way of supplementing rabbit feed due to the synergistic effect of humates and vegetable oils for their optimal growth development and the production of reduced-fat meat.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In this study, we assessed the effect of humic substances, as an organic supplement in feed, on the fattening performance, meat quality and selected lipid and mineral parameters from the blood serum of rabbits. Three groups of the Giant Saris rabbit breed were used (one control and two experimental), with 16 animals per group. The animals in the control group were fed a standard pellet diet, the humic substances group received a basal diet supplemented with 5% humic substances, and the third group received a basal diet with 5% humic–fatty substances preparation during the entire experiment (from 35 to 120 days of age). There were 85 days of fattening; then, the rabbits were slaughtered. In the group supplemented with 5% humic–fatty substances addition, we noticed a higher final weight (p < 0.05) and higher average daily gains compared to the control group at the end of the fattening period, at 120 days of age. On the other hand, a slightly lower final weight (p > 0.05) in the group supplemented with humic substances was found compared to the control group. In the comparison of the individual parameters of the meat quality in rabbits, we observed a positive effect in the reduction in the intramuscular fat content and the lipid parameters as well as a lower total cholesterol from the blood serum in both supplemented groups. Regarding the mineral parameters, we observed elevated blood serum values of calcium and phosphorus in both experimental groups. The addition of humic–fatty substances appears to be the most effective way of supplementing rabbit feed due to the synergistic effect of humates and vegetable oils for their optimal growth development and the production of reduced-fat meat.
4.
Zigo, František; Vasiľ, Milan; Farkašová, Zuzana; Ondrašovičová, Silvia; Zigová, Martina; Maľová, Jana; Výrostková, Jana; Bujok, Jolanta; Pecka-Kiełb, Ewa
Impact of humic acid as an organic additive on the milk parameters and occurrence of mastitis in dairy cows Journal Article
In: Potravinarstvo Slovak Journal of Food Sciences, vol. 14, pp. 358-364, 2020, ISSN: 13370960.
@article{Zigo2020,
title = {Impact of humic acid as an organic additive on the milk parameters and occurrence of mastitis in dairy cows},
author = {František Zigo and Milan Vasiľ and Zuzana Farkašová and Silvia Ondrašovičová and Martina Zigová and Jana Maľová and Jana Výrostková and Jolanta Bujok and Ewa Pecka-Kiełb},
url = {http://www.potravinarstvo.com/journal1/index.php/potravinarstvo/article/view/1340},
doi = {10.5219/1340},
issn = {13370960},
year = {2020},
date = {2020-01-01},
journal = {Potravinarstvo Slovak Journal of Food Sciences},
volume = {14},
pages = {358-364},
publisher = {HACCP Consulting},
abstract = {Given growing concerns about the use of antibiotics in the treatment of animals, identifying organic alternatives as feed additives to improve animal health and the development of immune responses has become of interest in dairy farming. Humic acids (HA) seem to be a suitable alternative with a favorable impact on the health and production parameters of animals. This study aimed to determine the effects of an HA supplemented diet on milk parameters as well as the effects on somatic cell count (SCC) and the occurrence of mastitis in dairy cows during the peripartum period. Twenty dairy cows in the last stage of pregnancy were selected from a herd of 140 cows. The selected cows were randomly divided into two groups: control (C) and experimental (E). The two groups were fed the same feed mixture and group E was additionally supplemented with HA at a total dose of 100 g per cow per day during the last 50 days of pregnancy. The milk parameters (dry matter, lactose, fat, crude protein, casein and milk urea) and SCC of every cow, and the presence of mastitis, were checked on days 10 and 30 during the first month of lactation. The results of the study show that dietary supplementation with HA significantly reduced the milk urea (MU) content and SCC on the 10th day after calving but did not affect the other milk compositions. In addition to the decreased MU and SCC, the number of positive quarters detected by the California Mastitis Test was reduced by 20.0% and the occurrence of mastitis caused by coagulase-negative staphylococci (CNS). Based on the obtained results we can conclude that the addition of HA stabilizes the nutrient digestion, as was confirmed by a reduced MU content in the supplemented group. Their indirect beneficial effects improved the development of immune responses, resulting in decreased SCC and the occurrence of mastitis caused by CNS.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Given growing concerns about the use of antibiotics in the treatment of animals, identifying organic alternatives as feed additives to improve animal health and the development of immune responses has become of interest in dairy farming. Humic acids (HA) seem to be a suitable alternative with a favorable impact on the health and production parameters of animals. This study aimed to determine the effects of an HA supplemented diet on milk parameters as well as the effects on somatic cell count (SCC) and the occurrence of mastitis in dairy cows during the peripartum period. Twenty dairy cows in the last stage of pregnancy were selected from a herd of 140 cows. The selected cows were randomly divided into two groups: control (C) and experimental (E). The two groups were fed the same feed mixture and group E was additionally supplemented with HA at a total dose of 100 g per cow per day during the last 50 days of pregnancy. The milk parameters (dry matter, lactose, fat, crude protein, casein and milk urea) and SCC of every cow, and the presence of mastitis, were checked on days 10 and 30 during the first month of lactation. The results of the study show that dietary supplementation with HA significantly reduced the milk urea (MU) content and SCC on the 10th day after calving but did not affect the other milk compositions. In addition to the decreased MU and SCC, the number of positive quarters detected by the California Mastitis Test was reduced by 20.0% and the occurrence of mastitis caused by coagulase-negative staphylococci (CNS). Based on the obtained results we can conclude that the addition of HA stabilizes the nutrient digestion, as was confirmed by a reduced MU content in the supplemented group. Their indirect beneficial effects improved the development of immune responses, resulting in decreased SCC and the occurrence of mastitis caused by CNS.
Top 10 szerző
1. Janka Vašková 122. Slavomír Marcinčák 11
3. Ladislav Vaško 9
4. Lukáš Bujňák 8
5. Pavel Naď 7
6. Jozef Nagy 7
7. Daniel Žatko 6
8. Martin Bartkovský 6
9. Štefan Tóth 6
10. Boris Semjon 5