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A consideration of the techniques for estimation of milk yield by suckled sheep and a comparison of estimates obtained by two methods in relation to the effect of breed, level of production and stage of lactation

Published online by Cambridge University Press:  27 March 2009

J. M. Doney ,
J. N. Peart ,
W. F. Smith  and
F. Louda
J. M. Doney
Affiliation:
Hill Farming Research Organization, Bush Estate, Penicuik, Midlothian, EH26 0PY
J. N. Peart
Affiliation:
Hill Farming Research Organization, Bush Estate, Penicuik, Midlothian, EH26 0PY
W. F. Smith
Affiliation:
Hill Farming Research Organization, Bush Estate, Penicuik, Midlothian, EH26 0PY
F. Louda
Affiliation:
School of Agriculture, Prague
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Summary

Three techniques, lamb-suckling and test-weighing, hand- or machine-milking following administration of oxytocin, and measurements of body-water turnover, used for the estimation of milk yield in suckled sheep are discussed in relation to sources of error and comparability of estimates.

Results are presented from an experiment in which the lamb-suckling and the oxytocin techniques were compared. The mean daily milk production of Scottish Blackface and East Friesland × Scottish Blackface ewes suckling single and twin lambs was measured by both methods at weekly intervals for 6 weeks. All ewes were well nourished to ensure full expression of milking capacity. Additional information from a similar experiment on Merino ewes is also presented.

The oxytocin method gave higher estimates of mean daily milk yield in the first week of lactation, especially in the groups of ewes rearing single lambs and in the Blackface breed. By the second week in most groups and the third week in all groups there were no significant differences between estimates made by the two methods and the relative values of the estimates were not affected by level of milk production, number of lambs suckled or genotype of ewe and lamb.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 92 , Issue 1 , February 1979 , pp. 123 - 132
Copyright
Copyright © Cambridge University Press 1979

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References

Barnicoat, C. R., Logan, A. G. & Grant, A. I. (1949). Milk-secretion studies with New Zealand Romney ewes. Journal of Agricultural Science, Cambridge 39, 44–55.Google Scholar
Bissett, G. W., Clark, B. S. & Lewis, G. P. (1967). The mechanism of the inhibitory action of adrenaline on the mammary gland. British Journal of Pharmacology and Chemotherapy 31, 550–559.CrossRefGoogle Scholar
Boyazoglu, J. G. (1963). Aspects quantitatifs de la production laitiere des brebis. Annales de Zootechnie 12. 237–296.CrossRefGoogle Scholar
Coombe, J. B., Wardrop, I. D. & Tribe, D. E. (1960). A study of milk production of the grazing ewe, with emphasis on the experimental technique employed. Journal of Agricultural Science, Cambridge 54, 353–359.CrossRefGoogle Scholar
Corbett, J. L. (1968). Variation in the yield and composition of milk of grazing Merino ewes. Australian Journal of Agricultural Research 19, 283–294.CrossRefGoogle Scholar
Denamur, R. & Martinet, J. (1961). Action de l'oxytocine sur la secretion du lait de brebis. Annales d'Endocrinologie 22, 777–781.Google Scholar
Doney, J. M. & Munro, Joan (1962). The effect of suckling, management and season on sheep milk production as estimated by lamb growth. Animal Production 4, 215–220.Google Scholar
Donker, J. D., Koshi, J. H. & Petersen, W. E. (1954). The effects of hourly milking with the aid of intravenous injections of oxytocin. Journal of Dairy Science 37, 1261–1268.Google Scholar
Findlay, A. L. R. (1970). Neural and behavioural interactions with lactation. In Lactation, The University of Nottingham Seventeenth Easter School in Agricultural Science, 1970. (Ed. Falconer, I. R..) London: Butterworths.Google Scholar
Hart, I. C. & Linzell, J. L. (1977). An analysis of specific stimuli causing the release of prolactin and growth hormone at milking in the goat. Journal of Endocrinology 72, 163–171.CrossRefGoogle ScholarPubMed
Horák, F. & Jakubec, V. (1964). (Studies of milk production by sheep during the consolidation period of cross-breeding between Valachian and Texel breeds.) Sborník Vysoké školy zemědělské v Brně (3), 521–529.Google Scholar
Labussiere, J., Martinet, J. & Denamur, R. (1969). The influence of the milk ejection reflex on the flow rate during the milking of ewes. Journal of Dairy Research 36, 191–201.Google Scholar
Linzell, J. L. (1972). Milk yield, energy loss in milk, and mammary gland weight in different species. Dairy Science Abstracts 34, 351–360.Google Scholar
Louca, A. (1972). The effect of suckling regime on growth rate and lactation performance of the Cyprus fat-tailed and Chois sheep. Animal Production 15, 53–59.Google Scholar
McCance, J. (1959). The determination of milk yield in the Merino ewe. Australian Journal of Agricultural Research 10, 839–853.CrossRefGoogle Scholar
Macfarlane, W. V., Howard, Beth & Stebert, B. D. (1969). Tritiated water in the measurement of milk intake and tissue growth of ruminants in the field. Nature, London 221, 578–579.CrossRefGoogle ScholarPubMed
Martinet, J. & Denamur, R. (1960). Étude préliminaire des mécanismes de l'évacution du lait de la glande mammaire chez la chevre et la brebis. Archives des Sciences Physiologiques 14, 35–96.Google Scholar
Martinet, J. & Denamur, R. (1969). The influence of the milk ejection reflex on the flow rate during the milking of ewes. Journal of Dairy Research 36, 191–201.Google Scholar
Moore, R. W. (1962). Comparison of two techniques for the estimation of the milk intake of lambs at pasture. Proceedings of the Australian Society for Animal Production IV, 66–68.Google Scholar
Morag, M. (1968 a). The effect of regular intravenous injections of oxytocin at milking time on the proportion of the yield obtained as residual milk in the ewe. Journal of Dairy Research 35, 377–381.Google Scholar
Morag, M. (1968 b). A galactopoeitic effect from oxytocin administered between milkings in the cow. Annales de Biologie Animale Biochimie Biophysique 8, 27–43.CrossRefGoogle Scholar
Morag, M. (1969). The relation between the passage of time and the secretion of milk in the ewe. Australian Journal of Agricultural Research 20, 941–951.CrossRefGoogle Scholar
Morag, M. & Fox, S. (1966). Galactokinetic responses to oxytocin in the ewe. Annales de Biologie Animale Biochimie Biophysique 6, 467–478.Google Scholar
Nicol, A. M. & Irvine, C. H. G. (1973). Measurement of the milk consumption of suckling beef calves by an isotope dilution method. Proceedings of the New Zealand Society for Animal Production 33, 176–183.Google Scholar
Owen, J. B. (1957). A study of the lactation and growth of hill sheep in their native environment and under lowland conditions. Journal of Agricultural Science, Cambridge 48, 387–412.CrossRefGoogle Scholar
Owen, J. B. & Ingleton, Jean W. (1963). A study of food intake and production in grazing ewes. II. The interrelationship between food intake and production output. Journal of Agricultural Science, Cambridge 61, 329–340.CrossRefGoogle Scholar
Peart, J. N. (1967). The effect of different levels of nutrition during late pregnancy on the subsequent milk production of Blackface ewes and on the growth of their lambs. Journal of Agricultural Science, Camrbidge 68, 365–371.Google Scholar
Peart, J. N. (1968). Lactation studies with Blackface ewes and their lambs. Journal of Agricultural Science, Cambridge 70, 87–94.CrossRefGoogle Scholar
Peart, J. N. (1970). The influence of liveweight and body condition on the subsequent milk production of Blackface ewes following a period of under-nourishment in early lactation. Journal of Agricultural Science, Cambridge 75, 459–469.CrossRefGoogle Scholar
Peart, J. N., Doney, J. M. & Macdonald, A. (1975). The influence of lamb genotype on the milk production of Blackface ewes. Journal of Agricultural Science, Cambridge 84, 313–316.Google Scholar
Poulton, S. G. & Ashton, W. M. (1972). Studies on ewe's milk. V. The effect of high cereal diets on ewes and on the yield of milk and milk constituents. Journal of Agricultural Science, Cambridge 78, 203–213.Google Scholar
Ricordeau, G., Boccard, R., Denamur, R. & Pen-Trequin, P. (1960). Mesure de la production laitiere des brebis pendent la période d'allaitement. Annales de Zootechnie 9, 97–120.Google Scholar
Semjan, Š. (1962). Residual milk of sheep. XVI. International Dairy Congress 1, 17–23.Google Scholar
Semjan, Š. (1969). (On the question of the real rate of milk and fat secretion in sheep.) Acta Zootechnica, Zborník VŠP Nitra 19, 73–80.Google Scholar
Sprain, D. G., Smith, V. R., Tyler, W. G. & Fosgate, O. T. (1954). The effect on milk and fat production of injections of oxytocin at alternate 14-day periods during lactation. Journal of Dairy Science 37, 195–201.Google Scholar
Thompson, P. D., Paape, M. J. & Smith, J. W. (1973). Residual milk yield as affected by dose and time of injection of oxytocin. Journal of Dairy Research 40, 221–227.Google Scholar
Treacher, T. T. (1970). Effects of nutrition in late pregnancy on subsequent milk production in ewes. Animal Production 12, 23–36.Google Scholar
Turner, H. G. (1955). Changes in the capacity of the udder of the dairy cow during the course of lactation. Australian Journal of Agricultural Research 6, 145–160.CrossRefGoogle Scholar
Wallace, L. R. (1948). The growth of lambs before and after birth in relation to the level of nutrition. Journal of Agricultural Science, Cambridge 38, 93–153.CrossRefGoogle Scholar
Wheelock, J. V. & Dodd, F. H. (1969). Non-nutritional factors affecting milk yield in dairy cattle. Journal of Dairy Research 36, 479–493.Google Scholar
Wheelock, J. V., Rook, J. A. F. & Dodd, F. H. (1965). The effect of intravenous injections of oxytocin during milking and the removal of residual milk on the composition of cow's milk. Journal of Dairy Research 32, 255–262.Google Scholar
Wright, D. E., Jones, Berry A. & Geenty, K. G. (1974). Measurement of milk consumption in young ruminants using tritiated water. Proceedings of the New Zealand Society of Animal Production 34, 145–150.Google Scholar
Wright, D. E. & Wolff, J. E. (1976). Measuring milk intake of lambs suckling grazing ewes by a double isotope method. Proceedings of the New Zealand Society of Animal Production 36, 99–102.Google Scholar
Yates, N. G., Macfarlane, W. V. & Ellis, R. (1971). The estimation of milk intake and growth of beef calves in the field by using tritiated water. Australian Journal of Agricultural Research 22, 291–306.Google Scholar