Performance and caecal adaptation of turkeys to diets without or with antibiotic and with different levels of mannan-oligosaccharide.

Publisher: Taylor & Francis Country of Publication: England NLM ID: 101222433 Publication Model: Print Cited Medium: Print ISSN: 1745-039X (Print) Linking ISSN: 14772817 NLM ISO Abbreviation: Arch Anim Nutr Subsets: MEDLINE

Original Publication: Abingdon, Oxfordshire, U.K. : Taylor & Francis

Anti-Bacterial Agents/*administration & dosage ; Bambermycins/*administration & dosage ; Cecum/*metabolism ; Mannans/*administration & dosage ; Oligosaccharides/*administration & dosage ; Turkeys/*growth & development; Adaptation, Physiological ; Animal Feed ; Animal Nutritional Physiological Phenomena ; Animals ; Anti-Bacterial Agents/pharmacology ; Bambermycins/pharmacology ; Cecum/growth & development ; Cecum/microbiology ; Dietary Supplements ; Dose-Response Relationship, Drug ; Fatty Acids, Volatile/analysis ; Hydrogen-Ion Concentration ; Mannans/metabolism ; Oligosaccharides/metabolism ; Random Allocation ; Weight Gain/drug effects

A study on turkeys was conducted to evaluate the administration of different levels of mannan-oligosaccharide (MOS) (0.1, 0.25 and 0.5%) to a diet without or with an antibiotic (Flavomycin, 8 mg/kg feed). The growth performance as well as caecal development and metabolism indicators of turkeys after 8 weeks of experimental feeding were estimated. No interactions were noted between the contents of antibiotic and MOS in the diet in any of the parameters examined. During 8 weeks of experimental feeding, the feed intake as well as feed conversion ratio were similar in all experimental groups. The turkeys fed a control diet (without MOS) supplemented with antibiotic were the heaviest, but there were no statistical differences between groups. Depending on dietary dose, MOS had a different influence on caecal digesta parameters. The medium level of dietary MOS (0.25%) resulted in the highest caecal pH, dry matter and protein concentrations as well as the bacterial glycolytic activity (including beta-glucuronidase). Compared to other dietary treatments, the highest amount of MOS (0.5%) reduced ammonia concentration and enhanced volatile fatty acids concentration, especially of acetate and butyrate, in the caecal digesta. The medium level of dietary MOS caused a significant enhancement of propionate, iso-butyrate and iso-valerate concentrations in the digesta. The antibiotic addition to a diet resulted in a lack of birds' response.

0 (Anti-Bacterial Agents)
0 (Fatty Acids, Volatile)
0 (Mannans)
0 (Oligosaccharides)
11015-37-5 (Bambermycins)

Date Created: 20041215 Date Completed: 20050106 Latest Revision: 20081121

20250114

10.1080/00039420400005042

15595620