Effect of humic substances on the production parameters of pheasant hens

Sopoliga, Igor; Hreško-Šamudovská, Alena; Demeterová, M.; Naď, P.; Marcïn, A.; Skalická, M.

doi:10.15414/afz.2016.19.01.11-14

Cited by 3 publications

(2 citation statements)

References 10 publications

(5 reference statements)

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“…Experiments on the application of HS in animal rations have mainly focused on monogastric animals. The positive effects of humates on the growth of broiler chickens, productivity and health of laying poultry, as well as the chemical composition of eggs have been demonstrated in several studies (Trziszka et al, 2011;Mirnawati and Marlida, 2013;Sopoliga et al, 2016 ). The results of Wang et al (2020) indicated that humic acids in the rations improved growth performance and health of piglets.…”

Section: Introductionmentioning

confidence: 89%

Does humate supplementation affect ciliate population and fermentation parameters in the sheep rumen?

Majewska¹,

Kędzierska²,

Miltko³

et al. 2022

J. Anim. Feed Sci.

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Section: Introductionmentioning

confidence: 89%

Does humate supplementation affect ciliate population and fermentation parameters in the sheep rumen?

Majewska¹,

Kędzierska²,

Miltko³

et al. 2022

J. Anim. Feed Sci.

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“…Moreover, HS with supplementation with probiotic products based on lactobacilli significantly increased the egg albumen index and Haugh units. Sopoliga et al [25] reported increased hatchability in pheasant laying hens after the intake of humic substances in comparison to hens fed with the conventional feed mixture.…”

Section: Introductionmentioning

confidence: 99%

Effects of Dietary Supplementation of Humic Substances on Production Parameters, Immune Status and Gut Microbiota of Laying Hens

et al. 2021

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Despite the fact that humic substances (HS) have been frequently studied in relation to their effects on livestock health, studies on their influence on egg production and quality, immunity, and intestinal microbiota of laying hens are limited. In this study, the influence of 0.5% HS supplementation on the specific production parameters of eggshell mineral quality, immune parameters (relative expression of IgA, IGF-2, MUC-2 gene in cecum; activity of phagocytes, percentage of selected lymphocyte subpopulations in the peripheral blood), and number of lactic acid bacteria and enterobacteria in the intestinal contents in laying hens was tested. The addition of 0.5% HS to the laying hen feed had a positive effect on egg laying rate, daily egg mass, egg weight, feed conversion and eggshell quality and also had an immunostimulatory effect manifested by increased phagocyte activity and B cell response. Concurrently, an increase in the number of enterobacteria in the intestinal contents and a decrease in the proportion of T lymphocytes (p < 0.05) was observed, which can be considered as a negative effect of HS. The results confirmed that HS can be used for the improvement of egg production and targeted immunostimulation, but their effect on the intestinal microbiota and T lymphocytes should be studied in more detail.

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Effects of humic substances with urea on protozoal population and fermentation in the rumen of sheep

Marcïn¹,

Bujňák²,

Mihok³

et al. 2020

BJVM

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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<0.05) of Entodinium spp. by 243.19, of Diplodinium spp. by 5.11 and of Ophryoscolex spp. by 2.06 103.mL-1 were observed in EG on day 3. The effects on the amylolytic and cellulolytic activities as well as pH values were not significant. Ammonia was higher (P<0.05) in EG by 5.78 at 3 h and by 12.75 at 6 h on day 2, by 10.62 at 9 h on day 3, and by 7.84 mg.100 mL-1 at 6 h on day 4 after feeding. ∑VFA were increased (P<0.05) by 3.89 mmol.L-1 at 3 h on day 18 after feeding. The feed intake of HS combined with urea had significantly positive effects on the course of ammonia and protozoal population in RF.

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Effect of humic substances on the production parameters of pheasant hens

Cited by 3 publications

References 10 publications

Does humate supplementation affect ciliate population and fermentation parameters in the sheep rumen?

Does humate supplementation affect ciliate population and fermentation parameters in the sheep rumen?

Effects of Dietary Supplementation of Humic Substances on Production Parameters, Immune Status and Gut Microbiota of Laying Hens

Effects of humic substances with urea on protozoal population and fermentation in the rumen of sheep

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