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[The effect of avoparcin on apparent digestibility, characteristics of rumen fermentation and fattening and slaughter output of growing cattle].

Abstract
Four digestion experiments with 5 wethers each (0, 15, 30 or 60 mg avoparcin per animal and day), three individual feeding experiments (28, 18 or 56 bulls per experiment; 0 and 150/200; 0, 250 and 500 or 0 and 200 mg avoparcin per animal and day in the experiments 1, 2 or 3) and two group feeding experiments (60 bulls and 161 heifers per experiment; salt lick stones without or with 2.5 g avoparcin per kg) were carried out in order to investigate the influence of avoparcin on apparent digestibility, figures of rumen fermentation, fattening and slaughtering results as well as protein, fat and energy retention. Avoparcin supplementation did not significantly influence the apparent digestibility of organic matter and crude nutrients. Concentration of acetate of rumen liquid was decreased (16 or 36) and that of propionate was increased (25 or 50 mmoles per mol) when 200 or 500 mg avoparcin per animal and day were added. Acetate:propionate ratio decreased from 4.2 to 3.5 and 3.1:1. Avoparcin did not influence feed intake, enhanced daily weight gain (37 to 174 g per animal and day) and improved feed efficiency (5 to 26%). Salt lick stones with avoparcin increased weight gain (58 and 96 g per animal and day). Slaughtering results and body composition of bulls were not influenced by avoparcin. Daily retention of protein, fat and energy was significantly increased (16 to 18%; P less than 0.05) when avoparcin was supplemented.
AuthorsG Flachowsky, G H Richter, W I Ochrimenko, M Matthey
JournalArchiv fur Tierernahrung (Arch Tierernahr) Vol. 40 Issue 10 Pg. 991-1004 (Oct 1990) ISSN: 0003-942X [Print] England
Vernacular TitleUntersuchungen zum Einfluss von Avoparcin auf scheinbare Verdaulichkeit, Kennzahlen der Pansenfermentation sowie Mast- und Schlachtleistung wachsender Rinder.
PMID2076056 (Publication Type: English Abstract, Journal Article)
Chemical References
  • Anti-Bacterial Agents
  • Glycopeptides
  • avoparcin
Topics
  • Animals
  • Anti-Bacterial Agents (chemistry, pharmacology)
  • Body Composition (drug effects)
  • Cattle (growth & development, metabolism)
  • Digestion (drug effects)
  • Eating (drug effects)
  • Female
  • Fermentation (drug effects)
  • Glycopeptides (chemistry, pharmacology)
  • Male
  • Molecular Structure
  • Rumen (drug effects, metabolism)
  • Sheep (growth & development, metabolism)
  • Weight Gain (drug effects)

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