The Impact of Humic Substances as Feed Additive on Ruminal Fermentation

Result code in 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>

Result on the web

<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

—

Result language

angličtina

Original language name

The Impact of Humic Substances as Feed Additive on Ruminal Fermentation

Original language description

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.

Czech name

—

Czech description

—

Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

—

OECD FORD branch

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

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Scientific Papers Animal Science and Biotechnologies

ISSN

2344-4576

e-ISSN

—

Volume of the periodical

56

Issue of the periodical within the volume

1

Country of publishing house

RO - ROMANIA

Number of pages

5

Pages from-to

6-10

UT code for WoS article

—

EID of the result in the Scopus database

—