Effect of monensin on rumen fermentation, performance and body composition of growing bulls

Daenicke, Reinhard; Röhr, Klaus; Oslage, Hans Joachim

doi:10.1016/0301-6226(82)90026-4

Cited by 16 publications

(8 citation statements)

References 20 publications

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“…Dietary protein level or interaction of monensin • dietary protein level did not affect ruminal measurements in Period I. In Period II, similar shifts in VFA patterns due to monensin were (Raun et al, 1974;Beede and Farlin, 1977;Boling et al, 1977;Van Maanen et al, 1978;Daenicke et al, 1982;Beede et al, 1986). Apparent dry matter and gross energy digestibility coefficients were not affected by monensin (table 3) in Period I or II.…”

Section: Resultsmentioning

confidence: 81%

“…As a main effect, monensin improved conversion of DE intake to body ether extract energy gain by 12% (P<.05), while high protein increased efficiency about 16% (P<.05). Daenicke et al (1982) reported a 23% increase in body fat gain of German Friesian bulls fed 34 mg monensin/kg dry feed compared with controls. In the current experiment, within the low-protein diets, conversion of DE to body ether extract was increased 27% by monensin, compared with 12% within the high-protein treatment, though an interaction was not detected (P>.15).…”

Section: Resultsmentioning

confidence: 96%

“…A variety of documented and proposed modes of action of ionophores on ruminaI fermentation and dietary utilization modifications have been reviewed (Bergen and Bates, 1984;Schelling, 1984). However, relatively few studies (Byers, 1980a,b;Daenicke et al, 1982) have addressed effects of monensin on terminal body composition and true efficiency of body protein and energy deposition.…”

Section: Introductionmentioning

confidence: 99%

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Utilization by Growing Goats of Diets that Contain Monensin and Low or Excess Crude Protein: Comparative Slaughter Experiment

Beede¹,

Schelling²,

Mitchell³

et al. 1985

Journal of Animal Science

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Monensin was added at 0 or 23 mg/kg dry matter to low (8.3%) or high (17.5%) crude protein diets (2 X 2 factorial arrangement) that were fed to 28 growing wether goats for 194 to 256 d. Average daily gain increased 24% with monensin and 20% with higher crude protein (P less than .05). Feed conversion was improved by both monensin and higher crude protein (P less than .001). During the experiment, digestion and metabolism trials were conducted twice (Periods I and II) with each goat. Apparent dry matter and gross energy digestibility coefficients were not affected by monensin in either period. Digestibility of dietary N was enhanced 7% by monensin in Period II (P less than .01) and tended to be improved in Period I. Higher dietary protein increased all digestibility coefficients (P less than .001). Nitrogen retention was not affected by monensin but was greater (P less than .001) for high-protein-fed goats. Potential changes in empty body composition were assessed by comparative slaughter balance. No effects of dietary treatments on percentage composition of empty body were noted, except a trend for higher protein in monensin-fed goats compared with controls (P less than .1). Empty body protein gain as a percentage of protein intake improved 41% with monensin and decreased 37% with higher dietary protein content (P less than .05). Monensin increased conversion of dietary energy to body ether extract energy (12%, P less than .05), to protein energy (35%, P less than .001) and to total body energy (23%, P less than .001). Magnitude of improvement tended to be greater with low than high dietary protein treatments, suggesting a protein-sparing effect of monensin as determined by comparative slaughter method. However, N retention, measured by intake-excreta balances, was not affected by monensin, suggesting that these point estimates are less than adequate to evaluate true body protein gain.

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Section: Resultsmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Utilization by Growing Goats of Diets that Contain Monensin and Low or Excess Crude Protein: Comparative Slaughter Experiment

Beede¹,

Schelling²,

Mitchell³

et al. 1985

Journal of Animal Science

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show abstract

“…This variability in response between finishing and grazing cattle may be explained by two different feed intake mechanisms. Other reports gave conflicting results for carcass fatness (73,74). In grazing cattle, gut fill or rumen distention may be the limiting factor, because the intracellular water of the grass may contribute to the bulk of the food (67).…”

Section: Ruminantsmentioning

confidence: 99%

Growth promoters and meat yield

Fiems¹,

Cottyn²,

Boucque³

1991

Animal Biotechnology and the Quality of Meat Production

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“…The coccidiostat monensin is used as a growth promoter in ruminants and its effect on the composition of empty-body gain in Friesian bulls was studied by Daenicke et al (1982). Groups of twelve animals had equal intakes of feed and metabolizable energy, with or without 30 mg monensidkg feed.…”

Section: Body Composition Of Farm and Laboratory Animals 127mentioning

confidence: 99%

Recent studies on the body composition of ruminants

Greenhalgh

1986

Proc. Nutr. Soc.

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Effect of monensin on rumen fermentation, performance and body composition of growing bulls

Cited by 16 publications

References 20 publications

Utilization by Growing Goats of Diets that Contain Monensin and Low or Excess Crude Protein: Comparative Slaughter Experiment

Utilization by Growing Goats of Diets that Contain Monensin and Low or Excess Crude Protein: Comparative Slaughter Experiment

Growth promoters and meat yield

Recent studies on the body composition of ruminants

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