The Impact of Humic Substances as Feed Additive on Ruminal Fermentation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26788462%3A_____%2F23%3AN0000032" target="_blank" >RIV/26788462:_____/23:N0000032 - isvavai.cz</a>

Výsledek na webu

<a href="https://spasb.ro/index.php/public_html/article/view/5" target="_blank" >https://spasb.ro/index.php/public_html/article/view/5</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Impact of Humic Substances as Feed Additive on Ruminal Fermentation

Popis výsledku v původním jazyce

The rumen is settled with a complex microbial ecosystem where feeds consumed by animals are digested with the help of rumen microorganisms, which play an important role in contributingnutrients to the host animal. This study focused on investigating the effect of humic substances (HS)dietary inclusion on the protozoal community in the rumen and qualitative parameters of the ruminal fluid. In the presented research, three cannulatedbeefcows were housed in individual pens and were fed with the basal diet enriched with the organic feed additive Humac®Natur AFM(comprise: 65 % humic and 5 % fulvic acids, Ca 42.28, Mg 5.11, Fe 19.05 g/kg,Cu 15, Zn 37, Mn 142, Co 1.24, Se 1.67, Mo 2.7 mg/kgof DM)in 3 different concentrations: 60 g/day (4,8 g/kg of DM) and 110 g/day (8,9 g/kg of DM) and 200 g/day (16,1 g/kg of DM).The rumen liquorof each animal was collectedtwo times per week via a rumen cannula with a probe connected to a vacuum pumpfor further laboratory analyses. Test of rumen fluid included: measurementof pH, physical characteristics, the concentration of nitrogenic compounds and ammonia, determinationof rumen protozoaactivity, and counting of the total number of protozoal ciliates; the motility of ruminal ciliates was also observed. The rumen pH level was affected by the sampling period, but diet treatment had no significant impact on rumen pH.The pH values in rumen fluid samples were within the normal range, the same as physicalcharacteristics (color, odor, consistency, and sedimentation time).In conclusion, dietary HS supplementation significantly reduced protozoal activity in the rumen in all tested concentrations, which was also in correlation with lower protozoal motilityand ammonia concentrations.

Název v anglickém jazyce

The Impact of Humic Substances as Feed Additive on Ruminal Fermentation

Popis výsledku anglicky

The rumen is settled with a complex microbial ecosystem where feeds consumed by animals are digested with the help of rumen microorganisms, which play an important role in contributingnutrients to the host animal. This study focused on investigating the effect of humic substances (HS)dietary inclusion on the protozoal community in the rumen and qualitative parameters of the ruminal fluid. In the presented research, three cannulatedbeefcows were housed in individual pens and were fed with the basal diet enriched with the organic feed additive Humac®Natur AFM(comprise: 65 % humic and 5 % fulvic acids, Ca 42.28, Mg 5.11, Fe 19.05 g/kg,Cu 15, Zn 37, Mn 142, Co 1.24, Se 1.67, Mo 2.7 mg/kgof DM)in 3 different concentrations: 60 g/day (4,8 g/kg of DM) and 110 g/day (8,9 g/kg of DM) and 200 g/day (16,1 g/kg of DM).The rumen liquorof each animal was collectedtwo times per week via a rumen cannula with a probe connected to a vacuum pumpfor further laboratory analyses. Test of rumen fluid included: measurementof pH, physical characteristics, the concentration of nitrogenic compounds and ammonia, determinationof rumen protozoaactivity, and counting of the total number of protozoal ciliates; the motility of ruminal ciliates was also observed. The rumen pH level was affected by the sampling period, but diet treatment had no significant impact on rumen pH.The pH values in rumen fluid samples were within the normal range, the same as physicalcharacteristics (color, odor, consistency, and sedimentation time).In conclusion, dietary HS supplementation significantly reduced protozoal activity in the rumen in all tested concentrations, which was also in correlation with lower protozoal motilityand ammonia concentrations.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Papers Animal Science and Biotechnologies

ISSN

2344-4576

e-ISSN

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Svazek periodika

56

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

RO - Rumunsko

Počet stran výsledku

5

Strana od-do

6-10

Kód UT WoS článku

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EID výsledku v databázi Scopus

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