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The effect of body-weight changes during pregnancy and lactation on the performance of three breeds of sheep

Published online by Cambridge University Press:  27 March 2009

A. P. Mavrogenis ,
J. Hancock  and
A. Louca
A. P. Mavrogenis
Affiliation:
Agricultural Research Institute, Nicosia, Cyprus
J. Hancock
Affiliation:
Agricultural Research Institute, Nicosia, Cyprus
A. Louca
Affiliation:
Agricultural Research Institute, Nicosia, Cyprus
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Summary

Three husbandry systems were used to promote differential live-weight gains in 603 Cyprus Fat-tailed, Chios and Awassi ewes. Ewes on the high level of feeding had heavier litters than those on the medium and low levels. Litter size was not affected by level of feeding during pregnancy. Milk production was highest (P < 0·01) for ewes on the high level. The milk production of Chios and Awassi ewes was similar on the high and low feeding levels, but Awassi ewes outyielded both other breeds on the medium level. Chios ewes had larger and heavier litters (P < 0·01) than both other breeds. The correlations between live weights during lactation and milk yield were low and negative indicating a tendency for body loss at high yields.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 95 , Issue 2 , October 1980 , pp. 357 - 363
Copyright
Copyright © Cambridge University Press 1980

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References

Butterworth, M. H. & Blore, T. W. D. (1969). The lactation of Persian Blackhead ewes and the growth of lambs. The effect of three different nutritional regimes during gestation on subsequent growth. Journal of Agricultural Science, Cambridge 73, 133–137.CrossRefGoogle Scholar
Forbes, J. M. (1969). A note on the voluntary feed intake of lactating ewes, their milk yield and the growth rate of their lambs. Animal Production 11, 263–266.Google Scholar
Harvey, W. R. (1975). Least-squares Analysis of Data with Unequal Subclass Numbers. USDA, ARS. H·4, U.S. Government Printing Office, Washington, D.C.Google Scholar
Lawlor, M. J., Louca, A. & Mavrogenis, A. (1974). The effect of three suckling regimes on the lactation performance of Cyprus Fat-tailed, Chios and Awassi sheep and the growth rate of the lambs. Animal Production 18, 293–299.Google Scholar
Louca, A., Mavrogenis, A. & Lawlor, M. J. (1974). Effects of plane of nutrition in late pregnancy on lamb birth weight and milk yield in early lactation of Chios and Awassi sheep. Animal Production 19, 341–349.Google Scholar
McCleland, T. H. & Forbes, T. J. (1971). A study of protein requirements of housed Scottish Blackfaced ewes during late pregnancy. Animal Production 13, 643–651.Google Scholar
Morag, M., Raz, A. & Eyal, E. (1970). Mother-offspring relationships in Awassi sheep. IV. The effect of weaning at birth, or after 15 weeks, on lactational performance in the dairy ewe. Journal of Agricultural Science, Cambridge 75, 183–187.CrossRefGoogle Scholar
National Research Council (1968). Nutrient Requirements of Sheep. National Academy of Science, National Research Council, Washington, D.C.Google Scholar
Peart, J. N. (1967). The effect of different levels of nutrition during late pregnancy on the subsequent milk production of Blackface ewes and the growth of their lambs. Journal of Agricultural Science, Cambridge 68, 365–371.CrossRefGoogle Scholar
Peart, J. N. (1970). The influence of live weight and body condition on the subsequent milk production of Blackface ewes following a period of undernourishment in early lactation. Journal of Agricultural Science, Cambridge 75, 459–469.CrossRefGoogle Scholar
Robinson, J. J. & Forbes, T. J. (1968). The effect of protein intake during gestation on ewe and lamb performance. Animal Production 10, 297–309.Google Scholar
Sheehan, W. & Lawlor, M. J. (1972). Energy supplementation of silage for ewes in late pregnancy. Animal Production 15, 29–37.Google Scholar
Thomson, W. & Thomson, A. M. (1953). Effect of diet on milk yield of the ewe and growth of her lamb. British Journal of Nutrition 7, 263–274.CrossRefGoogle ScholarPubMed
Treacher, T. T. (1970). Effects of nutrition in late pregnancy on subsequent milk production in ewes. Animal Production 12, 23–26.Google Scholar
Treacher, T. T. (1971). Effects of nutrition in pregnancy and in lactation on milk yield in ewes. Animal Production 13, 493–501.Google Scholar