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A note on the growth performance and carcass composition of Texel- and Suffolk-sired lambs in an intensive feeding system

Published online by Cambridge University Press:  02 September 2010

M. G. A. Latif
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading, Berkshire RG6 2AT
E. Owen
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading, Berkshire RG6 2AT
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Abstract

Sixteen male and 16 female lambs were used to compare the performance and carcass composition of Texel- and Suffolk-sired lambs out of Finnish Landrace × Dorset Horn ewes. Lambs were weaned at 6 weeks of age and individually fed an all-concentrate diet ad libitum to slaughter at 30 kg (females) and 36 kg (males). At slaughter, offal weights were recorded and carcass left sides jointed and dissected.

Breed types did not differ in weight at weaning, growth iate, age at slaughter, daily feed intake or feed conversion rate. Texels had heavier carcasses (17·2 v. 16·4 kg: P <0·01) and higher dressing percentages (50·7 v. 49·2: P <0·05) than Suffolks. Texel-cross carcasses had 2·9% more lean (P <0·05), but 3·8% less total fat CP <0·01).

The results indicate the suitability of Texel-sired lambs for intensive lamb production.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1980

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References

REFERENCES

Ahlschwede, G. A. 1977. Lamb finishing in confinement. In Sheep Nutrition and Management, pp. 5157. US Feed Grains Council, London.Google Scholar
Animal Breeding Research Organisation. 1975. A note on the A.B.R.O. experiments evaluating six sire breeds for lowland slaughter lamb production. Animal Breeding Research Organisation, Edinburgh.Google Scholar
Elsley, F. W. H., Smith, C. and Wolf, B. T. 1978. Serial carcase growth in meat lambs. Index of Research supported by the Meat and Livestock Commission, p. 35.Google Scholar
Latif, M. G. A. and Owen, E. 1979. Comparison of Texel- and Suffolk-sired lambs out of Finnish Landrace × Dorset Horn ewes under grazing conditions. J. agric. Sci., Camb. 93: 235239.CrossRefGoogle Scholar
Meat and Livestock Commission. 1970. Instructionsfor assessment, photography, jointing and tissue separation of lamb carcass. Meat and Livestock Commission, Bletchley, Milton Keynes.Google Scholar
Meat and Livestock Commission. 1975. Sheep Carcass Classification. Meat and Livestock Commission, Bletchley, Milton Keynes.Google Scholar
More O'Ferrall, G. J. and Timon, V. M. 1977a. A comparison of eight sire breeds for lamb production. 1. Lamb growth and carcass measurements. Ir. J. agric. Res. 16: 267275.Google Scholar
More O'Ferrall, G. J. and Timon, V. M. 1977b. A comparison of eight sire breeds for lamb production. 2. Lamb carcass composition. Ir. J. agric. Res. 16: 277284.Google Scholar
Ørskov, E. R. 1976. The effect of processing of cereals on digestion in ruminants. A.R.C. Res. Rev. 2: 3741.Google Scholar
Ørskov, E. R., Fraser, C. and McHattie, I. 1974. Cereal processing and food utilization by sheep. 2. A note on the effect of feeding unprocessed barley, maize, oats and wheat on food utilization by early-weaned lambs. Anim. Prod. 18: 8588.Google Scholar
Robinson, J. J. and Ørskov, E. R. 1975. An integrated approach to improving the biological efficiency of sheep meat production. Wld Rev. Anim. Prod. 11 (3): 6376.Google Scholar
Speedy, A. W. 1977. Feeding sheep under extensive and intensive conditions. In Sheep Nutrition and Management, pp. 5968. US Feed Grains Council, London.Google Scholar