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Growth rate and carcass quality in bacon pigs: A study of polynomial coefficients fitted to growth rate data

Published online by Cambridge University Press:  27 March 2009

H. P. Donald
H. P. Donald
Affiliation:
Institute of Animal Genetics, University of Edinburgh
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Extract

1. An examination of carcass reports from two groups of bacon pigs (comprising eleven litters and seventy-five pigs) was made to determine whether the variation in growth rate of normally reared pigs was associated with differences in carcass measurements. The method adopted was to fit orthogonal polynomials to the third degree to the last 10–11 fortnightly weighings converted to logarithms.

2. The residual standard deviation after fitting was about 2–4%. For present purposes, the fitting of second degree parabolae appeared adequate.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 30 , Issue 4 , October 1940 , pp. 582 - 597
Copyright
Copyright © Cambridge University Press 1940

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References

REFERENCES

Aitken, A. C. (1933). Proc. Roy. Soc. Edinb. 53, 54–78.CrossRefGoogle Scholar
Crampton, E. W. (1938). Sci. Agric. 19, 155–61.Google Scholar
Donald, H. P. (1939). Proc. VI Internal. Congr. Animal Breeding, Zurich.Google Scholar
Fisher, R. A. (1936). Statistical Methods for Research Workers. Edinburgh: Oliver and Boyd.Google Scholar
Jackson, C. M. (1936). Amer. J. Anat. 58, 179–93.CrossRefGoogle Scholar
Jackson, C. M. (1937). Amer. J. Anat. 68, 371–81.Google Scholar
Lush, J. L. (1936). Res. Bull. Iowa agric. Exp. Sta. no. 204.Google Scholar
Mansfield, W. S., Trehane, W. R. & Peacock, R. B. (1937). J. Roy. agric. Soc. 98, 172–85.Google Scholar
McCay, C. M., Crowell, M. F. & Maynard, L. A. (1935). J. Nutrit. 10, 63–79.CrossRefGoogle Scholar
McMeekan, C. P. & Hammond, J. (1939). J. Minist. Agric. 46, 238–43.Google Scholar
Sinclair, R. D. & Murray, J. A. (1935). Sci. Agric. 16, 169–174.Google Scholar
Smith, A. D. B. & Donald, H. P. (1939). J. agric. Sci. 29, 274–94.CrossRefGoogle Scholar
Snedecor, G. W. (1938). Statistical Methods. Iowa: Collegiate Press, Ames.Google Scholar
Stothart, J. G. (1938). Sci. Agric. 19, 162–72.Google Scholar
Wishart, J. (1938). Biometrika, 30, 16–28.CrossRefGoogle Scholar
Wishart, J. (1939). J. Roy. Stat. Soc. Suppl. 6, 1–22.Google Scholar