Document Detail

The effects of various forms of gastrointestinal cannulation on digestive measurements in sheep.
MedLine Citation:
PMID:  889773     Owner:  NLM     Status:  MEDLINE    
1. There was little difference in digestive (voluntary food intake, dry matter digestibility and nitrogen balance) and blood measurements (venous concentrations of corticosteroids, serum aspartate aminotransferase (EC, protein-bound iodine, urea and glucose) of intact sheep (eight animals) and of sheep prepared with rumen cannular (sixteen animals) and subsequently with either simple 'T-shaped' (eight animals) or re-entrant cannulas (eight animals) at the duodenum and ileum, when fed ad lib. a chopped medium-quality-hay ration. 2. Wool growth rates of the intact sheep were similar to those in sheep with rumen cannulas and with rumen cannulas plus simple 'T-shaped' cannulas, but higher (P less than 0-01) than those with rumen cannulas plus re-entrant cannulas. 3. When the sheep were subsequently given a restricted intake (800 g/d) of dried grass, retention times of solid- and liquid-phase digesta markers in the rumen and caecum were similar in all sheep. 4. The use of the different preparations in digestive physiology studies is discussed.
J C Macrae; S Wilson
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The British journal of nutrition     Volume:  38     ISSN:  0007-1145     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  1977 Jul 
Date Detail:
Created Date:  1977-10-28     Completed Date:  1977-10-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  65-71     Citation Subset:  IM    
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MeSH Terms
Blood Chemical Analysis
Catheterization / methods*
Digestive System / metabolism*
Digestive System Surgical Procedures
Nitrogen / metabolism
Rumen / metabolism
Sheep / metabolism*,  surgery
Wool / growth & development
Reg. No./Substance:

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