THE EFFECTS OF A HIND-GUT FERMENTATION ON ENDOGENOUS URINARY NITROGEN EXCRETION IN SHEEP NOURISHEO BY INTRAGASTRIC INFUSIOl'i'

Abstract

Four feniale sheep were fitted It'ith rumeli canııulas and abomasal and ileal infusioıı eatlıeters,' one of the sheep ıms alsa fitted with a cannula at the caeeıım. All animals ıvere nourished wlıolly by intragastric infiısion of nutrieııts. Solııtions of volatile fatty adds. buffer aııd major minerals \Vere infused into tlıe rumen aııd caseiıı infused iııto the abomasum. All animals were received three levels of nutriem iııfusioıı into tlıe termiııal ileımı iıı oı'der to aclıieve dil/erenf levels of hiııdgut fermeııtation. The ileal infıısion treatments were (I) ",:ater i/?lusiol (2) 25 g / d slarclı and 50 g / d cel/ulose in/ifsion,. (3) 50 g / d sloı'clı and 50 g / d ('cl/ulose injiısion. The firsı 7 days sened as ıhe preliminary period in whiclı animals ırere adiusıed lo ıhe prescribed level of'hind-guı inji{~ion a/ier digesıibility and N-balance 1ןIcasurement days i5- i9 inclusive constituled a nilrogen~fj'ee period in which faeces and urine were collected and alUT1ysedon a daily basis to esIabIish endogenous urinary nitrogen excretion. 3 '.,< 3 Latin square design IHIS used with treatment period.ı' (ıl3 weeks durations Overalımean value of' endogenous urinary nitrogen (EV N) excretion of ıhe three treatment groups ıras 206 mg N,I kg 0.75/ d and ıhere was no signifıcant effeet ol hind-guı lermentation on EVN excret;on. During N-Free regime faecal N and total excretiOlI of N increased ;n the presence of' a hind-gl/t fermentalion.

Keywords

• effects
• hınd-gut
• ferentation

References

1. Ankara Üniversitesi Veteriner Fakültesi Dergisi