Effect of ionophores and 2-bromoethanesulphonic acid in hen caecal methanogenic cultures
M. Marounek 1,   V. Rada 2,   V. Benda 3
More details
Hide details
Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 104 00 Prague 10 - Czech Republic
Department of Microbiology and Biotechnology, Czech Agricultural University in Prague, 165 00 Prague 6 - Suchdol, Czech Republic
Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague 6 - Dejvice, Czech Republic
Publication date: 1996-09-13
J. Anim. Feed Sci. 1996;5(4):425–431
Laying hens, one year of age, fed a commercial concentrate were killed, and their caecal contents inoculated into a nutrient broth with starch as the energy source. Cultures were incubated for 24 h and production of methane, hydrogen and volatile fatty acids (VFA) measured. Thirteen mols of VFA were produced per 1 mol of methane in control incubations. Acetate, propionate and butyrate accounted for 89-94% of metabolite carbon. Only traces of lactate were produced. Monensin and salinomycin at 5 mg/l significantly decreased production of methane, total VFA, acetate, butyrate and valerate. Similar fermentation shifts were found in cultures containing 2-bromoethanesulphonic acid (2-BES) at 10 mmol/l. Propionate percentages were increased in all treated cultures. Hydrogen recoveries were incomplete in control cultures (70.5-82.1%). The headspace gas of control cultures contained ca 1% (v/v) of molecular hydrogen. Approximately twice more hydrogen gas accumulated in treated cultures.
Reductive Acetogenesis in the Hindgut and Attempts to its Induction in the Rumen—A Review
Veerle Fievez, F. Piattoni, L. Mbanzamihigo, D. Demeyer
Journal of Applied Animal Research
Comparison of In Vitro Fermentation and Molecular Microbial Profiles of High-Fiber Feed Substrates Incubated with Chicken Cecal Inocula
K. D. Dunkley, C. S. Dunkley, N. L. Njongmeta, T. R. Callaway, M. E. Hume, L. F. Kubena, D. J. Nisbet, S. C. Ricke
Poultry Science
Effect of substrate and feed antibiotics on in vitro production of volatile fatty acids and methane in caecal contents of chickens
Milan Marounek, Olga Suchorska, Oxana Savka
Animal Feed Science and Technology
Carbohydrate fermentation in the avian ceca: a review
D Józefiak, A Rutkowski, S.A Martin
Animal Feed Science and Technology
Evaluation of bee venom as a novel feed additive in fast-growing broilers
D. H. Kim, S. M. Han, M. C. Keum, S. Lee, B. K. An, S.-R. Lee, K.-W. Lee
British Poultry Science