Addition of formic acid or starter cultures to liquid feed. Effect on pH, microflora composition, organic acid concentration and ammonia concentration.
Some of the charateristics of good quality fermented liquid feed (FLF) are low pH, high numbers of lactic acid bacteria, and low numbers of enterobacteria. In order to test strategies to avoid a proliferation of enterobacteria during the initial phase of FLF elaboration, two in vitro studies were carried out. Addition of various doses of formic acid or two different starter cultures were tested. Adding 0.1% formic acid or L. plantarum VTT E-78076 to the liquid feed seemed to be addecuate ways of inhibiting the growth of enterobacteria, without depleting the growth of lactic acid bacteria.
Canibe
N
N
Danish Institute of Agricultural Sciences, Department of Animal Nutrition and Physiology, Research Centre Foulum, P.O. Box 50, 8830 Tjele, Denmark.
Miquel
N
N
Miettinen
H
H
Jensen
B B
BB
D000641:Ammonia / Q000032:analysis; D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D000898:Antibiosis; D004305:Dose-Response Relationship, Drug; D004755:Enterobacteriaceae / Q000187:drug effects / Q000254:growth & development*; D005285:Fermentation / Q000187:drug effects; D005516:Food Microbiology; D005561:Formates / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration; D048191:Lactiplantibacillus plantarum / Q000502:physiology*; D013552:Swine
D005561:Formates; C030544:formic acid; D000641:Ammonia