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A note on the effect of monensin sodium administered by intraruminal controlled-release devices on productivity of dairy cows at pasture

Published online by Cambridge University Press:  02 September 2010

G. A. Lynch ,
M. E. Hunt  and
S. N. McCutcheon
G. A. Lynch
Affiliation:
Farms Administration, Massey University, Palmerston North, New Zealand
M. E. Hunt
Affiliation:
Farms Administration, Massey University, Palmerston North, New Zealand
S. N. McCutcheon
Affiliation:
Department of Animal Science, Massey University, Palmerston North, New Zealand
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Abstract

The effects of monensin sodium, administered by intraruminal controlled-release devices at a rate of 320 mglday, on milk and milk solids production and bloat score were examined in a trial with 90 lactating dairy cows given only mixed ryegrasslwhite clover pasture. Monensintreated cows had significantly greater yields of milk and milk protein than control cows (1397·2 (s.e. 22·9) v. 1296·9 (s.e. 16·3) kg milk, 49·6 (s.e. 0·9) v. 46·5 (s.e. 0·6) kg protein) over the 14-week period of treatment (P < 0·01). Yield of fat was similar in monensin-treated and control cows (62·9 (s.e. 1·5) v. 63·4 (s.e. 1·1) kg). Live weight, condition score and bloat score were not influenced by treatment but pasture conditions were not conducive to severe bloat challenge.

Keywords

bloatdairy cowsmilk productionmonensin
Type
Research Article
Information
Animal Production , Volume 51 , Issue 2 , October 1990 , pp. 418 - 421
Copyright
Copyright © British Society of Animal Science 1990

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References

REFERENCES

Bauman, D. E. and Elliot, J. M. 1983. Control of nutrient partitioning in lactating ruminants. In Biochemistry of Lactation (ed. Mepham, T. B.). PP 437–468. Elsevier Science Publishers. Amsterdam.Google Scholar
Bergen, W. G. and Bates, D. B. 1984. Ionophores: their effect on production efficiency and mode of action. Journal of Animal Science 58: 1465–1483.CrossRefGoogle ScholarPubMed
Gilmour, A. R. 1985. REG: a generalised linear models programme. Miscellaneous Bulletin, Division of Agricultural Services, Department of Agriculture, New South Wales, No. 1.Google Scholar
Goodrich, R. D., Garrett, J. E., Gast, D. R., Kirick, M. A., Larson, D. A. and Meiske, J. C. 1984. Influence of monensin on the performance of cattle. Journal of Animal Science 58: 1484–1498.CrossRefGoogle ScholarPubMed
Holmes, C. W. and Wilson, G. F. 1984. Milk Production from Pasture. Butterworths, Wellington.Google Scholar
Mohskn, M. K., El-keraby, F. and El-safty, M. S. 1981. Effect of monensin on milk yield, milk composition and reproductive performance of Friesian cows. Agricultural Research Review 59: 15–27.Google Scholar
Pankhurst, I. and McGowan, A. 1978. Monensin adminstration to cows in early lactation. Research Reporl 1978, Dairy Research Institute, Ellinbank, Kyabram, Victorian Department of Agriculture, pp. 50–51.Google Scholar
Pankhurst, I., Robinson, I. and McGowan, A. 1977. Effect of monensin, cobalt and hien on milk composition and yield. Research Report 1977, Dairy Research Institute, Ellinbank, Kyabram, Victorian Department of Agriculture, pp. 33–34.Google Scholar
Schelling, G. T. 1984. Monensin mode of action in the rumen. Journal of Animal Science 58: 1518–1527.CrossRefGoogle ScholarPubMed
Schlink, A. C. and Ellis, K. J. 1982. A controlled release monensin capsule for cattle. Proceedings of the Australian Society of Animal Production 14: 615.Google Scholar
Sprott, L. R., Goehring, T. B., Beverly, J. R. and Corah, L. R. 1988. Effects of ionophores on cow herd production: a review. Journal of Animal Science 66: 1340–1346.CrossRefGoogle ScholarPubMed
Van beukelen, P., Van lingen, A. F. V., Peeters, M. E., Wensing, T. and Breukink, H. J. 1984. Effects of monensin in the ration on milk fat production and some rumen metabolites in cows during early and mid-lactation. Zentralblatt fur Veterinarmedizin Reihe A 31: 350–360.CrossRefGoogle ScholarPubMed