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African Journal of Biomedical Research
Ibadan Biomedical Communications Group
ISSN: 1119-5096
Vol. 9, No. 3, 2006, pp. 225-228
Bioline Code: md06036
Full paper language: English
Document type: Research Article
Document available free of charge

African Journal of Biomedical Research, Vol. 9, No. 3, 2006, pp. 225-228

 en Nitrogen Retention and Water Balance in Animals Fed Medium Protein Diet amidst Limited Water Supply
Ajibola, A.

Abstract

Nitrogen metabolism of animals fed a medium protein diet (10.5% cp) ad libitum with restricted water consumption was studied. During the 8-day digestibility trial, 3 groups of five animals each were subjected to 30%, 50% and 100% water supply, with concomitant jugular blood samples taken daily to monitor their hydration status. Water loss via the urine reflects the animals water intake, thus control animals voided more urine (P < 0.05) than 50% and 30% groups. Treatment groups retain high amount of nitrogen, in contrast to control animals that lost 2.4% nitrogen via the faeces. Inadequate drinking caused decreased excretion of urea. The improved nitrogen retention coupled with high rates of urea recycling enhances nutrients digestion and consequently the animals’ absorptive capabilities.

Keywords
nitrogen, water restriction, digestion, urea, absorption, animals

 
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