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The development of the digestive system of the young animal V. The development of rumen function in the young lamb

Published online by Cambridge University Press:  27 March 2009

D. M. Walker  and
Gwen J. Walker
D. M. Walker
Affiliation:
Department of Animal Husbandry, University of Sydney, Australia
Gwen J. Walker
Affiliation:
Department of Animal Husbandry, University of Sydney, Australia
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Extract

1. A total of twenty-one Merino lambs varying in age from 2 to 11 weeks were slaughtered.

2. The enzymic activity of their rumen contents was measured on a variety of carbohydrates and on protein.

3. Enzymic activity was expressed as mg. carbohydrate hydrolysed/mg. protein nitrogen/hour.

4. When compared with the rumen contents of adult sheep, lactase and proteolytic activity decreased with age; maltase, sucrase and fructanase activity increased; amylase activity decreased from 2 to 11 weeks though adult values were similar to those of the 2-week-old lamb.

5. The rumen contents of the lamb were as efficient as those of the adult sheep in their ability to hydrolyse a wide variety of carbohydrates and protein.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 57 , Issue 2 , October 1961 , pp. 271 - 278
Copyright
Copyright © Cambridge University Press 1961

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