Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-29T19:30:52.806Z Has data issue: false hasContentIssue false
  • English
  • Français

Inherited variation in carcass composition of Suffolk × Welsh lambs

Published online by Cambridge University Press:  02 September 2010

J. H. Watson  and
J. S. Broadbent
J. H. Watson
Affiliation:
Department of Agriculture, University College of North Wales, Bangor
J. S. Broadbent
Affiliation:
Department of Agriculture, University College of North Wales, Bangor
Get access

Extract

Relationships were measured between growth constants for live weight and tissue weights in the hind limb sample joint in 60 Suffolk × Welsh lambs.

The lambs were random samples of five male and five female from the single-born progeny of each of six Suffolk rams. They were slaughtered as near to 75 lb live weight as possible and a standard cut of the hind limb, extending up to and including the muscles of the upper thigh and pelvis, was removed from the carcass for dissection.

Whilst muscles in the upper thigh, pelvis and abdomen were affected predominantly by sex, sire effects increased and progressively substituted them in passing down the limb.

Linear growth in body weight was positively associated with weight of bone and muscle in the sample joint but not with subcutaneous or intermuscu-lar fat.

Type
Research Article
Information
Animal Production , Volume 10 , Issue 3 , August 1968 , pp. 257 - 264
Copyright
Copyright © British Society of Animal Science 1968

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Broadbent, J. S. 1962. An assessment of the value of performance testing as an aid to selection of crossing rams used in fat lamb production. Ph.D. Thesis, Univ. Wales: p. 150.Google Scholar
Broadbent, J. S. and Watson, J. H. 1966. Factors governing the shape of the growth curve of body weight and the age at slaughter of Suffolk × Welsh lambs. Anim. Prod. 8: 435–444.Google Scholar
Dickinson, A. G. 1960. Some genetic implications of maternal effects-an hypothesis of mammalian growth. J. agric. Sci., Camb. 54: 378–390.CrossRefGoogle Scholar
Dickinson, A. G. 1961. The genetical basis of conformation in cattle as revealed by crossbreeding. Z. Tierz. ZiichtBiol. 75: 262–275.CrossRefGoogle Scholar
Donald, H. P. and Purser, A. F. 1956. Competition in utero between twin lambs. J. agric. Sci., Camb. 48: 245–249.CrossRefGoogle Scholar
Fourie, P. D. 1963. Growth and development of sheep. 1. A carcass dissection technique. N.Z. J. agric. Res. 5: 109–222.Google Scholar
Khandekar, V. N., Goldstone, C. L. and McManus, W. R. 1965. Some indices of the carcass composition of Dorset Horn top cross lambs. 1. Measurements on the live body and carcass, the composition of sample joints and their relationship to carcass composition. J. agric. Sci., Camb. 65: 147–154.CrossRefGoogle Scholar
Orme, L. E., Cole, J. W. and Kincaid, C. M. 1959. Predicting total carcass lean in mature beef using weights of certain entire muscles. J. Anim. Sci. 18: 1479 (Abstr.)Google Scholar
Palsson, H. 1963. Paper for symposium on growth and development of meat animals. 38th meeting of the Brit. Soc. Anim. Prod., London, 1963 (mimeograph).Google Scholar
Rae, A. L. 1947. Present day knowledge of the inheritance of productive qualities in sheep and its practical application to sheep improvement. Proc. 10th Annu. Meeting Sheep Farmers, Massey Coll., N.Z.Google Scholar
Taylor, St C. S. 1962. Identical twins and developmental stability. Anim. Prod. 4: 144–164.Google Scholar
Timon, V. M. and Bichard, M. 1965a. Quantitative estimates of lamb carcass composition. 1. Sample joints. Anim. Prod. 7: 173–181.Google Scholar
Timon, V. M. and Bichard, M. 1965b. Quantitative estimates of lamb carcass composition. 3. Carcass measurements and a comparison of the predictive efficiency of sample joint composition, carcass specific gravity determinations and carcass measurements. Anim. Prod. 7: 189–201.Google Scholar