Effects of direct-fed microbials on pig fecal flora and volatile fatty acid (VFA) densities and VFA-producing microbe

Issue Date

3-2007

Abstract

This work was carried out to investigate the effect of a direct-fed microbial (DFM) known as "DMP- odor" on changes in microbial fecal flora and its inhibitory effect on volatile fatty acid (VFA) producing microbe responsible for malodors in pig feces. Bifidobacterium (p
The inhibition effect of DMP-odor on the intestinal VFA-producing microbe known as Clostridium acetobutylicum occurred after 38 h when it was combined with the culture extracts of nine malodorant- utilizing microbes. The death phase started after 65 h incubation. These results indicate that some substances produced by the malodorant-utilizing microbes can inhibit the growth of C. acetobutylicum. The feces of pigs fed with DMP-odor contained less VFA than that of the control. Acetic acid, propionic acid, iso-butyric acid, iso-valeric acid and valeric acid had a decreased (P < 0.05) concentration of 60.88%, 78.62%, 44.96%, 76.49% and 69.02%, respectively, compared to the control group. Therefore, the influence of DMP-odor on the dynamics of fecal flora can be beneficial to animal performance. In addition, DMP-odor can diminish potential malodor from feces in pig barns.

Source or Periodical Title

Philippine Agricultural Scientist, The (Formerly: The Philippine Agriculturist)

ISSN

0031-7454

Volume

90

Issue

1

Page

46-53

Document Type

Article

College

College of Agriculture and Food Science (CAFS)

Frequency

quarterly

Physical Description

graphs, tables, references

Language

English

Subject

Bifidobacterium, Clostridium acetobutylicum, direct-fed microbials, pig fecal flora, volatile-fatty-acid-producing microbe

En – AGROVOC descriptors

MICROORGANISMS; INTESTINAL FLORA; MICROBIAL FLORA; FAECES; FAECAL FLORA; VOLATILE FATTY ACIDS; BIFIDOBACTERIUM; ENTEROBACTERIACEAE; CLOSTRIDIA; ODOUR; SWINE

This document is currently not available here.

Share

COinS