Effect of indigestible sugars on nitrogen utilization in adult rabbits

Alus Michael Xiaoli, Xiao Min, Yuta Tsuzuki, Ei Sakaguchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

To determine the effects of indigestible sugars on the digestibilities of nutrients and utilization of nitrogen (N) in adult male rabbits, 12 rabbits with or without a collar that prevented cecotrophy were fed experimental diets for 8days, comprising 3days for adaptation and 5days for collection of feces and urine. The experimental diets were formulated by adding D-mannitol or citrus pectin to a commercial diet at 60g/kg. In the rabbits allowed cecotrophy, mannitol increased the absorption of crude ash but did not significantly alter the digestibilities of crude protein (CP), dry matter and acid-detergent fiber. By contrast, the digestibility of CP was decreased by pectin. The ratios of retained N to consumed N and absorbed N were elevated by mannitol. In the rabbits prevented from cecotrophy, mannitol had no effect on N retention, but increased the N content of cecotrophs (soft feces) and the ratio of the N content of cecotrophs to consumed N. Pectin did not have any significant influences on N retention and the N content of cecotrophs. These results suggest that D-mannitol stimulates cecal microbial proliferation, thereby improving N utilization in rabbits.

Original languageEnglish (US)
Pages (from-to)296-301
Number of pages6
JournalAnimal Science Journal
Volume82
Issue number2
DOIs
StatePublished - Apr 2011
Externally publishedYes

Fingerprint

Mannitol
mannitol
Nitrogen
rabbits
Rabbits
sugars
pectins
nitrogen
digestibility
Diet
Feces
experimental diets
crude protein
feces
Urine Specimen Collection
collars
acid detergent fiber
Detergents
Citrus
Proteins

Keywords

  • Cecum
  • Citrus pectin
  • D-mannitol
  • Nitrogen retention
  • Rabbit

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Effect of indigestible sugars on nitrogen utilization in adult rabbits. / Xiaoli, Alus Michael; Min, Xiao; Tsuzuki, Yuta; Sakaguchi, Ei.

In: Animal Science Journal, Vol. 82, No. 2, 04.2011, p. 296-301.

Research output: Contribution to journalArticle

Xiaoli, Alus Michael ; Min, Xiao ; Tsuzuki, Yuta ; Sakaguchi, Ei. / Effect of indigestible sugars on nitrogen utilization in adult rabbits. In: Animal Science Journal. 2011 ; Vol. 82, No. 2. pp. 296-301.
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