Hostname: page-component-848d4c4894-4hhp2 Total loading time: 0 Render date: 2024-05-23T15:51:02.664Z Has data issue: false hasContentIssue false
  • English
  • Français

The effect of chloroform introduced into the rumen of the lactating goat on the yield and composition of the milk

Published online by Cambridge University Press:  01 June 2009

Saeid Basmaeil  and
John L. Clapperton
Saeid Basmaeil
Affiliation:
The Hannah Research Institute, Ayr, Scotland, KA6 5HL
John L. Clapperton
Affiliation:
The Hannah Research Institute, Ayr, Scotland, KA6 5HL
Get access Rights & Permissions [Opens in a new window]

Summary

In 2 experiments, chloroform was introduced into the rumen of lactating goats given a mixture of 40% chopped hay and 60% barley-based concentrates. The effects on food intake, apparent digestibility, rumen fermentation and the yield and composition of milk were measured. In expts 1 and 2 food intake was reduced by 7% and less than 1% respectively. There were no significant effects on apparent digestibility in expt 1, but there were significant increases in the apparent digestibility of the dry matter and organic matter in expt 2. The results of in vitro determinations suggested that the loss of energy in combustible gas was reduced by 52 and by 25% in expts 1 and 2 respectively. As a result of these changes, the metabolizability of the dietary energy was increased by 2·1 and 4·8% respectively. In both experiments, the total volatile fatty acid concentration in the rumen was reduced when chloroform was added and there were changes in the molar proportions of the individual fatty acids, principally a reduction in acetic acid and an increase in propionic acid. Milk yield was not affected, but the fat content of the milk was reduced and, in expt 1, the protein content was increased.

Type
Original Articles
Information
Journal of Dairy Research , Volume 47 , Issue 1 , February 1980 , pp. 51 - 60
Copyright
Copyright © Proprietors of Journal of Dairy Research 1980

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Annison, E. F. (1973). In Production Disease in Farm Animals, pp. 115–121. (Ed. Payne, J. M., Hibbitt, K. G. & Sansom., B. F.) London: Baillèire Tindall.Google Scholar
Armstrong, D. G. & Blaxter, K. L. (1965). In Energy Metabolism, pp. 59–72. (Ed. Blaxter., K. L.) London: Academic Press.Google Scholar
Armstrong, D. G. & Prescott, J. H. D. (1971). In Lactation, pp. 349–377. (Ed. Falconer., I. R.) London: Butterworths.Google Scholar
Banks, W., Clapperton, J. L., Ferrie, M. E. & Wilson, A. G. (1976 a). Journal of Dairy Research 43, 213–218.CrossRefGoogle Scholar
Banks, W., Clapperton, J. L. & Ferrie, M. E. (1976 b). Journal of Dairy Research 43, 219–227.CrossRefGoogle Scholar
Blaxter, K. L. & Clapperton, J. L. (1965). British Journal of Nutrition 19, 511–522.CrossRefGoogle Scholar
Brandt, A. E. (1938). Iowa Agricultural Experiment Station Research Bulletin no. 234.Google Scholar
Clapperton, J. L. (1974). British Journal of Nutrition 32, 155–161.CrossRefGoogle Scholar
Clapperton, J. L. (1977). Animal Production 24, 169–181.Google Scholar
Clapperton, J. L. & Czerkawski, J. W. (1969). British Journal of Nutrition 23, 813–826.CrossRefGoogle Scholar
Cottyn, B. G. & Boucque, C. V. (1968). Journal of Agricultural and Food Chemistry 16, 105–107.:CrossRefGoogle Scholar
Czerkawski, J. W. & Breckenridge, G. (1969). British Journal of Nutrition 23, 51–66.CrossRefGoogle Scholar
Harfoot, C. G. & Czerkawski, J. W. (1971). Proccedings of the Nutrition Society 30, 44–45A.Google Scholar
Hunter, E. A., Patterson, H. D. & Talbot, M. (1973). In EDEX Analysis of Experiments, Edinburgh Report no. 12Google Scholar
Hydén, S. (1961). Kungl. Lantbrukshögskolans Annaler 27, 51–79.Google Scholar
R., ØRskov E., Flatt, W. P., Moe, P. W., Munson, A. W., Hemken, R. W. & Katz, I. (1969). British Journal of Nutrition 23, 443–453.Google Scholar
Patterson, H. D. & Lucas, H. L. (1962). North Carolina Agricultural Experiment Station. Technical Bulletin no. 147.Google Scholar
Rook, J. A. F. & Balch, C. C. (1961). British Journal of Nutrition 15, 361–369.CrossRefGoogle Scholar
Storry, J. E. & Sutton, J. D. (1969). British Journal of Nutrition 23, 511–521.CrossRefGoogle Scholar
Sweetsur, A. W. M. (1971). Thesis, University of Strathclyde.Google Scholar
Trei, J. E., Singh, Y. K. & Scott, G. C. (1970). Journal of Animal Science 31, 256.Google Scholar