Work

In vitro Effect of Essential Oils on Rumen Fermentation and Microbial Nitrogen Yield of High Concentrate Dairy Cow Diet

Year: 2016

Type: article

Abstract: Present study was conducted to investigate the effect of including plant essential oils on in vitro ruminal fermentation and microbial nitrogen synthesis of a dairy cow diet rich in concentrate. The treatments consisted of the diet alone (control; BD) as well as containing 50 and 100 μl L-1 essential oil of thyme (BDT), mint (BDM), savory (BDS), or a mixture of the essential oils at the rate of 1:1:1 (BDmix). Essential oils decreased gas production at 24, 48 and 96 h of incubation compared with that of BD. However, mint at the rate of 50 or 100 μl L-1 resulted an increase in the microbial nitrogen when compared to BD, BDS and BDT. The nitrogen content of truly undegraded residu (NDFN) content and NH3-N concentration were lower, while the dry matter digestibility was greater in the BDmix, regardless of dosage levels, as compared with the control. The inclusion of a mixture of essential oils at 50 μl L-1 to the basal diet caused intensified dry matter disappearance, in comparison to other treatments. Results showed that the synergetic effects of essential oils together in a dairy cow diet of rich in concentrate can alter rumen microbial fermentation and improve microbial protein yield.

Source: Biosciences Biotechnology Research Asia

DOI: 10.13005/bbra/2749

Authors: Seyed Masoud Davoodi, Mohsen Danesh Mesgaran, Ali Reza Vakili, Reza Valizadeh, Abdollah Ghasemi Pirbalouti

Institutions: Ferdowsi University of Mashhad, Islamic Azad University of Shahrekord

Language: English

Topic: Ruminant Nutrition and Digestive Physiology

Subfield: Animal Science and Zoology

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: diamond

OpenAlex ID: W4235679172

FWCI:

Cites: 28

Cited by: 6

Related to: 10