Skip to main content Accessibility help
×
Home

Pre partum milk fat secretion and concentrations of progestins, prostaglandin and oestrone sulphate in mammary fluid of the goat

  • Gordon E. Thompson (a1) and Jane A. Goode (a1)

Summary

As much secretion as possible was removed manually twice daily, from both mammary glands of 6 late-pregnant goats beginning on d 137 of gestation. Removing mammary fluid before parturition stimulated fluid secretion by different amounts in individual goats. The mean volume of fluid secreted pre partum by the goats correlated directly with their secretion of triglyceride and the percentage composition of C18 fatty acids in the triglyceride fatty acids; the volume also correlated with the concentration of progestins, but not prostaglandin F or oestrone sulphate, in the fluid.

Copyright

References

Hide All
Brownhill, J., Stewart, H. J. & Thompson, G. E. 1985 Prepartum milking and the onset of secretion of milk fat in the goat. Journal of Physiology 366 291298
Heap, R. B., Gwyn, M., Laing, J. A. & Walters, D. E. 1973 Pregnancy diagnosis in cows; changes in mik progesterone concentration during the oestrous cycle and pregnancy measured by a rapid radioimmunoassay. Journal of Agricultural Science 81 151157
Heap, R. B., Hamon, M. & Fleet, I. R. 1984 Transport of oestrone sulphate by the mammary gland in the goat. Journal of Endocrinology 101 221230
Holdsworth, R. J., Heap, R. B., Booth, J. M. & Hamon, M. 1982 A rapid direct radioimmunoassay for the measurement of oestrone sulphate in the milk of dairy cows and its use in pregnancy diagnosis. Journal of Endocrinology 95 712
Linzell, J. L. & Peaker, M. 1974 Changes in colostrum composition and in the permeability of the mammary epithelium at about the time of parturition in the goat. Journal of Physiology 243 129151
Maule Walker, F. M. & Peaker, M. 1980 Local production of prostaglandins in relation to mammary function at the onset of lactation in the goat. Journal of Physiology 309 6579
Maule Walker, F. M., Stewart, H. J. & Thompson, G. E. 1982 The lactogenic response to pre-partum milking and synthetic ACTH in British Saanen goats and Friesland sheep. Journal of Physiology 325 7273P
Slotin, C. A., Heap, R. B., Christiansen, J. M. & Linzell, J. L. 1970 Synthesis of progesterone by the mammary gland of the goat. Nature 225 385386
Snedecor, G. W. & Cochran, W. G. 1956 Statistical Methods 5th edn. Ames, IA: Iowa State University Press.

Pre partum milk fat secretion and concentrations of progestins, prostaglandin and oestrone sulphate in mammary fluid of the goat

  • Gordon E. Thompson (a1) and Jane A. Goode (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed