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Effect of Protein Realimentation on Lactational Performance in Rats:

Published online by Cambridge University Press:  24 November 2017

A.P. Pine ,
N.S. Jessop  and
J.D. Oldham
A.P. Pine
Affiliation:
Institute of Ecology and Resource Management, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JG
N.S. Jessop
Affiliation:
Institute of Ecology and Resource Management, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JG
J.D. Oldham
Affiliation:
Scottish Agricultural College, West Mains Road, Edinburgh, EH9 3JG
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Extract

Previous research in our laboratory has shown that lactating rats given low protein diets will readily mobilise approximately 20% of body protein to sustain lactational performance. However in such females lactational performance falls markedly around day 6 of lactation and remains at this low level for the remainder of lactation. The objective of this study was therefore to investigate whether this decline in lactational performance coincided with the exhaustion of labile protein reserves, and secondly whether such protein depleted females could reestablish effective lactation in mid lactation when given an increased supply of dietary protein.

Sixty six multiparous Sprague-Dawley rats were mated individually with a proven male breeder, mating being confirmed through the presence of vaginal plugs, then transferred to solid bottomed plastic cages for the remainder of the experiment.

Type
Dairy Production
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1992 , March 1992 , pp. 115
Copyright
Copyright © The British Society of Animal Production 1992

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