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Proteolytic enzyme activity in the gut of doe-suckled and hand-reared rabbits

Published online by Cambridge University Press:  09 March 2007

M. J. Henschel
M. J. Henschel
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
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Abstract

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1. Proteolytic activity in the stomachs and pancreases of infant doe- and hand-reared rabbits was studied to the age of 3–4 weeks.

2. In the stomachs of both the doe- and hand-fed animals total proteolytic activity at birth was low, rising slowly during the first 2 weeks and then rapidly, until at 3 weeks of age the level was similar to that of the adult.

3. In the pancreases of the doe-suckled pups the level of proteolytic activity was highest during the 1st week of life, falling steadily after that to a minimum at 3 weeks of age. In contrast in the hand-reared rabbits, it fell sharply during the 1st week and then rose, reaching at 2 weeks of age a level slightly higher than that found in the doe-suckled pups.

4. Growth and survival of hand-reared rabbits during the first 12 d of life were improved by predigestion of the diet with trypsin and α-chymotrypsin.

Type
General Nutrition
Information
British Journal of Nutrition , Volume 30 , Issue 2 , September 1973 , pp. 351 - 359
Copyright
Copyright © The Nutrition Society 1973

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