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The effect of body condition and nutrition during late pregnancy on the performance of grazing ewes during lactation

Published online by Cambridge University Press:  02 September 2010

M. J. Gibb
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 SLR
T. T. Treacher
Affiliation:
Grassland Research Institute, Hurley, Maidenhead, Berkshire SL6 SLR
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Abstract

Ewes with body condition scores of 2·6 (T) and 3·3 (F) on day 90 of pregnancy were allocated to one of two feeding regimes calculated either to maintain ewe body reserves (H) or to mobilize body reserves and produce a daily loss of 150 g in ewe body weight (L) during the last 8 weeks of pregnancy. Eight ewes with twin lambs from treatments TL, TH, FL and FH, and six ewes with single lambs from treatment TH, were grazed for the first 10 weeks of lactation at a mean daily herbage dry matter allowance of lOOg/kg live weight.

Feeding treatments applied during pregnancy produced differences in ewe live weights and body condition scores at lambing (68·6, 72·4, 76·7, 831 (s.e. 2·40) kg and 1·9, 2·9, 2·8, 31 (s.e. 011) for treatments TL, TH, FL and FH respectively) that persisted through lactation, but had no effect on herbage organic matter intake by ewes (mean 21 (s.e. 0·05) kg/day) milk yield (2·4 (s.e. 0·13) kg/day), lamb growth rate (mean 245 (s.e. 4·7) g/day) or herbage intake by lambs in weeks 7, 8 and 10 (mean 0·23, 0·28 and 0·36 (s.e. 0·007) kg/day).

Ewes with single lambs, when compared with ewes with twins, had similar intakes of herbage organic matter (mean 2·2 (s.e. 0·14) kg/day), produced 0·28 less milk (mean 1·7 (s.e. 010) kg/day) and increased in weight (mean 5·0 (s.e. 1·96) kg). Single lambs had significantly higher growth rates (322 (s.e. 13·1) g/day) overall but had similar intakes of herbage organic matter in weeks 7, 8 and 10 (means 0·25, 0·29 and 0·39 (s.e. 0·03) kg/day).

The range of ewe body condition and feeding in late pregnancy examined in this experiment had little subsequent effect on milk production by the ewes suckling twin lambs, given a plentiful supply of herbage.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1982

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References

REFERENCES

Geisler, Pamela A. and Jones, C. Merryl. 1979. A model for calculation of the energy requirements of the pregnant ewe. Anim. Prod. 29: 339355.Google Scholar
Geisler, Pamela A. and Neal, Heather. 1979. A model for the effects of energy nutrition on the pregnant ewe. Anim. Prod. 29: 357369.Google Scholar
Gibb, M. J. and Treacher, T. T. 1978. The effect of herbage allowance on herbage intake and performance of ewes and their twin lambs grazing perennial ryegrass. J. agric. Sci., Comb. 90:139147.CrossRefGoogle Scholar
Gibb, M. J. and Treacher, T. T. 1980. The effect of ewe body condition at lambing on the performance of ewes and their lambs at pasture. J. agric. Sci., Camb. 95: 631640.CrossRefGoogle Scholar
Gibb, M. J., Treacher, T. T. and Shanmugalingam, V. S. 1981. Herbage intake and performance of grazing ewes and of their lambs when weaned at 6, 8, 10 or 14 weeks of age. Anim. Prod. 33: 223232.Google Scholar
Hadjipieris, G. and 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: 217223.CrossRefGoogle Scholar
Hadjipieris, G., Jones, J. G. W., Wimble, R. H. and Holmes, W. 1966. Studies on feed intake and feed utilization by sheep. II. The utilization of feed by ewes. J. agric. Sci., Camb. 66: 341349.CrossRefGoogle Scholar
Jefferies, B. C. 1961. Body condition scoring and its use in management. Tasm. J. Agric. 32: 1921.Google Scholar
McCance, I. 1959. The determination of milk yield in the Merino ewe. Aust. J. agric. Res. 10: 839853.CrossRefGoogle Scholar
Maxwell, T. J., Doney, J. M., Milne, J. A., Peart, J. N., Russel, A. J. F., Sibbald, A. R. and MacDonald, D. 1979. The effect of rearing type and prepartum nutrition on the intake and performance of lactating Greyface ewes at pasture. J. agric. Sci., Camb. 92: 165174.CrossRefGoogle Scholar
Peart, J. N. 1968. Some effects of live weight and body condition on the milk production of Blackface ewes. J. agric. Sci., Camb. 70: 331338.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. J. agric. Sci., Camb. 75: 459469.CrossRefGoogle Scholar
Peart, J. N., Doney, J. M. and Smith, W. F. 1979. Lactation pattern in Scottish Blackface and East Friesland × Scottish Blackface cross-bred ewes. J. agric. Sci., Camb. 92: 133138.CrossRefGoogle Scholar
Peart, J. N., Edwards, R. A. and Donaldson, Elizabeth. 1975. The yield and composition of the milk of Finnish Landrace × Blackface ewes. II. Ewes and lambs grazed on pasture. J. agric. Sci., Camb. 85: 315323.CrossRefGoogle Scholar
Penning, P. D. and Gibb, M. J. 1977. The use of corticosteroid to synchronise parturition in sheep. Vet. Rec. 100: 491492.CrossRefGoogle ScholarPubMed
Penning, P. D. and Gibb, M. J. 1979. The effect of milk intake on the intake of cut and grazed herbage by lambs. Anim. Prod. 29: 5367.Google Scholar
Ross, G. J. S., Jones, R. D., Kempton, R. A., Lauckner, F. B., Payne, R. W., Hawkins, Diana and White, R. P. 1978. Maximum likelihood program. Users' Guide, Rothamsted Expl Stn.Google Scholar
Rowell, J. G. and Walters, D. E. 1976. Analysing data with repeated observations on each experimental unit. J. agric. Sci., Camb. 87: 423432.CrossRefGoogle Scholar
Tilley, J. M. A. and Terry, R. A. 1963. A two-stage technique for the in vitro digestion of forage crops. J. Br. GrassldSoc. 18: 104111.CrossRefGoogle Scholar
Treacher, T. T. 1970. Effects of nutrition in late pregnancy on subsequent milk production in ewes. Anim. Prod. 12: 2336.Google Scholar
Treacher, T. T. and Geisler, Pamela A. 1980. Validation of a model of nutrition of the ewe during pregnancy. A. Rep. Grassld Res. Inst., 1979, pp. 8284.Google Scholar
Wood, P. D. P. 1967. Algebraic model of the lactation curve in cattle. Nature, Land. 216: 164165.CrossRefGoogle Scholar
Young, N. E., Newton, J. E. and Orr, R. J. 1980. The effect of a cereal supplement during early laction on the performance and intake of ewes grazing perennial ryegrass at three stocking rates. Grass Forage Sci. 35: 197202.CrossRefGoogle Scholar