The effects of ‘adequate’ and ‘low’ sodium intake on reproductive performance of Scottish Blackface ewes and growth of their lambs
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Published:1986-04
Issue:2
Volume:106
Page:383-387
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ISSN:0021-8596
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Container-title:The Journal of Agricultural Science
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language:en
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Short-container-title:J. Agric. Sci.
Author:
Vincent Isobel C.,Williams H. Ll.,Michell A. R.,Hill R.
Abstract
SUMMARYA low sodium diet was given to Scottish Blackface ewes over two reproductive seasons. It provided a total of 3–7 mmol sodium per day, except during lactation when the intake was about 11 mmol sodium per day. Control ewes were given the same diet supplemented with sodium chloride to Agricultural Research Council recommended concentration which was about ten times greater than that in the experimental diet.The ewes remained clinically healthy throughout the experiment. The length of gestation and the birth weight of lambs were unaffected by diet. The number of lambs born alive per ewe lambing was unaffected by year or diet.The percentage of ewes producing twins was similar in control ewes in both years at about 64; in treatment ewes this was 70% in year 1, and 50% in year 2. Lamb mortality was higher in both years in the treatment ewes than in control ewes. None of these differences reached significance.
Publisher
Cambridge University Press (CUP)
Subject
Genetics,Agronomy and Crop Science,Animal Science and Zoology
Reference12 articles.
1. Vincent I. C. (1983). A study of nutritional factors influencing reproduction and growth in Blackface sheep in the Colombian Andes, with particular reference to the effect of dietary sodium. Ph.D. thesis, University of London.
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