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The use of monensin in European pasture cattle

Published online by Cambridge University Press:  02 September 2010

J. I. D. Wilkinson ,
W. G. C. Appleby ,
D. C. J. Shaw ,
G. Lebas  and
R. Pflug
J. I. D. Wilkinson
Affiliation:
Lilly Research Centre Ltd, Erl Wood Manor, Windlesham, Surrey
W. G. C. Appleby
Affiliation:
Elanco Products Ltd, Kingsclere Road, Basingstoke, Hampshire RG21 2XA
D. C. J. Shaw
Affiliation:
Elanco Products Ltd, Kingsclere Road, Basingstoke, Hampshire RG21 2XA
G. Lebas
Affiliation:
Eli Lilly France SA, 203 Bureaux de la Colline, 92 St Cloud, France
R. Pflug
Affiliation:
Eli Lilly GmbH, Niederlassung Bad Homburg, 638 Bad Homburg, Marienbader Platz, West Germany
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Extract

Monensin increases propionic acid production in the rumen and improves the efficiency of feed conversion in fattening cattle. Trials carried out in the USA showed that 200 mg monensin/head per day was the optimum dose for increasing the rate of live-weight gain in beef cattle at pasture.

Twelve pasture trials, involving a total of 434 beef cattle, were carried out during 1976 and 1977 to assess the efficacy of monensin for grazing cattle under European conditions. Each trial compared a group given 200 mg monensin/head per day in 0·5 to 10 kg of carrier supplement with a negative control group, fed blank supplement. The average initial live-weight was 260 kg and the average trial duration was 119 days. Daily live-weight gains of the control and monensin-treated cattle averaged 0·786 and 0·893 kg/head per day respectively, an advantage of 107g/head per day or 13·7 % in favour of the monensin treatment (P<0·001). The growth-promoting effect of monensin showed no tendency to diminish with time.

Type
Research Article
Information
Animal Production , Volume 31 , Issue 2 , October 1980 , pp. 159 - 162
Copyright
Copyright © British Society of Animal Science 1980

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References

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