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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

Published online by Cambridge University Press:  27 March 2009

J. N. Peart
J. N. Peart
Affiliation:
The Hill Farming Research Organisation, Edinburgh
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Extract

1. Using blood plasma FFA and ketone values to assess the nutritional state of individual ewes, high (H), medium (M) and low (L) planes of nutrition were imposed on 3 groups of Blackface ewes during pregnancy. By this method, ewes bearing single or twin foetuses were equally well or severely undernourished within treatment groups. The effects of these planes of nutrition during pregnancy have been assessed in terms of milk production, lamb growth, and live-weight changes by the ewes duriug their subsequent lactation. Immediately after parturition all ewes were individually fed a pelleted food ad lib. and their voluntary food intakes recorded. From 5 weeks of age individual voluntary intakes of solid food by the lambs were also recorded. Because of insufficient pen accommodation group-M ewes and lambs were discarded after 5 weeks of lactation.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 68 , Issue 3 , June 1967 , pp. 365 - 371
Copyright
Copyright © Cambridge University Press 1967

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References

REFERENCES

Agricultural Research Council (1965). The Nutrient Requirements of Farm Livestock, no. 2. Ruminants. London.Google Scholar
Alexander, G. & Davies, H. L. (1959). The relationship of milk production to numbers of lambs born or suckled. Aust. J. agric. Res. 10, 720–4.CrossRefGoogle Scholar
Barnicoat, C. K., Logan, A. G. & Grant, A. I. (1949). Milk secretion studies with New Zealand Romney ewes. J. agric. Sci., Camb. 39, 44–55, 237–48.CrossRefGoogle Scholar
Davies, H. L. (1958). Milk yield of Australian Merino ewes and lamb growth under pastoral conditions. Proc. Aust. Soc. Anim. Prod. 2, 15–21.Google Scholar
Evans, R. E. (1960). Rations for Livestock, Bull. No. 48, Minst. Agric. Lond.Google Scholar
Gardner, R. W., Hogue, D. E. & Bensadoun, A. (1964). Body composition and growth of suckling lambs as affected by level of feed intake. J. Anim. Sci. 23, 943–52.CrossRefGoogle Scholar
Hadjipieris, G. & Holmes, W. (1966). Studies on feed intake and feed utilization by sheep. I. The voluntary feed intake of dry, pregnant and lactating ewes. J. agric. Sci., Camb. 66, 217–23.CrossRefGoogle Scholar
Holmes, W. & Jones, J. G. W. (1964). The efficiency of utilization of fresh grass. Proc. Nutr. Soc. 23, 88–99.CrossRefGoogle Scholar
Holmes, W., Jones, J. G. W. & Drake-Brockman, R. M. (1961). The feed intake of grazing cattle. II. The influence of size of animal on feed intake. Anim. Prod. 3, 251–60.CrossRefGoogle Scholar
Holmes, W., Jones, J. G. W., Drake-Brockman, R. M. & White, N. (1965). The feed intake of milk cows. I. Intake of winter rations during pregnancy and lactation and the influence of change to pasture. Anim. Prod. 7, 27–37.Google Scholar
Holmes, W. & Jones, J. G. W. (1965). The feed intake of milk cows. II. The effect of roughage quality during late pregnancy and lactation. Anim. Prod. 7, 39–51.Google Scholar
Hutton, J. B. (1963). The effect of lactation on intake in the dairy cow. Proc. N.Z. Soc. Anim. Prod. 23, 39–51.Google Scholar
Jones, J. G. W., Holmes, W. & Drake-Brockman, R. M. (1965). The feed intake of grazing cattle. III. The influence of level of milk yield. Anim. Prod. 7, 141–51.Google Scholar
Munro, J. (1962). A study of the milk yield of three strains of Scottish Blackface ewes in two environments, Anim. Prod. 4, 203–13.Google Scholar
Russel, A. J. R., Doney, J. M. & Reid, R. L. (1967). The use of biochemical parameters in controlling nutritional state in pregnant ewes and the effect of undernourishment during pregnancy on lamb birthweight. J. agric. Sci., Camb.CrossRefGoogle Scholar
Spedding, C. W. R., Brown, T. H. & Large, R. V. (1963). The effect of milk intake on nematode infestation of the lamb. Proc. Nutr. Soc. 22, 32–41.CrossRefGoogle Scholar
Thomson, W. & Thomson, A. M. (1949). Lambing in relation to the diet of the pregnant ewe. Br. J. Nutr. 2, 290–305.CrossRefGoogle Scholar
Thomson, W. & Thomson, A. M. (1953). Effect of diet on milk yield of the ewe. Br. J. Nutr. 7, 263–74.CrossRefGoogle Scholar
Wallace, L. R. (1948). The growth of lambs before and after birth in relation to the level of nutrition. J. agric. Sci., Camb. 38, 93–153, 243–302, 369–401.CrossRefGoogle Scholar