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The effect of a submaintenance diet on the composition of the pig

Published online by Cambridge University Press:  27 March 2009

R. W. Pomeroy
R. W. Pomeroy
Affiliation:
School of Agriculture, Cambridge University
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Extract

Five inbred Large Whites from the same strain as used by McMeekan (1940) were reared on a High Plane of nutrition to approximately 330 lb. live weight at which one was killed as a control. The rest were put on to a submaintenance diet of straw and water and killed successively at roughly equal intervals in live weight between 330 and 200 lb. The weights of blood, organs and offals were determined and the carcasses were jointed and completely dissected into their constituent tissues. The total weights of each and the weights within the various joints were recorded.

(1) Organs. The early-maturing organs, brain, eyes, etc., continued to grow. Other organs like the heart, liver, lungs, etc., suffered a greater or less degree of atrophy which was probably determined by a suspension of their functions.

(2) Carcass composition. The tissues of the carcass were affected in reverse order to their development, i.e. fat most, muscle less and bone least. Bone continued to grow in the earlier stages of submaintenance.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 31 , Issue 1 , January 1941 , pp. 50 - 73
Copyright
Copyright © Cambridge University Press 1941

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