Assessment of the activity of a fructo-oligo-saccharide on different caecal parameters in rabbits experimentally infected with E coli 0.103

Abstract

Summary &mdash; Thirty 51-d-oId rabbits, fed since the l8th d on a mixed diet containing a fructo-oligosaccharide (FOS) added at 0.25% (FOS group) and 30 51-d-old rabbits without FOS (C group) were infected via oesophagal route, with 2 x 10 7 E coli 0.103 strain B lo . Seven (P < 0,001); une augmentation de la densité des colibacilles non pathogènes 1()4, 2 /g versus 10 2 , 5 1g (P < 0,001). Ces résultats confirment l'aptitude du fructo-oligo-saccharide étudié à augmenter la production des AGV au niveau du caecum. À cette augmentation du taux des AGV est associé, dans les conditions de l'étude, un développement significatif de la flore colibacillaire (P < 0,001). Les auteurs émettent l'hypothèse que le niveau atteint par la flore colibacillaire dans un environnement biochimique favorable (pH, AGV, NH3), permet de limiter la morbidité (mais non la mortalité) liée à une infection expérimentale par un colibacille entéropathogène.fructo-oligo-saccharide / paramètre caecaux / colibacillose INTRODUCTION

Dried chicory root (Cichorium intybus L.) as a natural fructan source in rabbit diet: effects on growth performance, digestion and caecal and carcass traits

“…Our results are in agreement with the described importance of inulin-type fructans in rabbit nutrition regarding caecal fermentative activity (Morisse et al, 1993;Maertens et al, 2004;Volek et al, 2005;Castellini et al, 2007;Volek et al, 2007;Juśkiewicz et al, 2008). In the present study, dietary supplementation with dried chicory root affected the total caecal concentrations of VFA and the pH when compared with the control diet; these differences were apparently associated with a non-significant lower incidence of diarrhoea in rabbits fed the Chicory 10 diet (Gidenne and Licois, 2005).…”

“…In rabbits, it has been shown that a diet containing inulin-type fructans affects the caecal microbial activity, morbidity and growth rate in a beneficial way (Morisse et al, 1993;Maertens et al, 2004;Volek et al, 2005Volek et al, , 2007Eiben et al, 2008) or not (Bónai et al, 2010).…”

Effect of a starter diet supplementation with mannan-oligosaccharide or inulin on health status, caecal metabolism, digestibility of nutrients and growth of early weaned rabbits

“…Compared with the control and MOS diet, the inulin addition strongly influenced the caecal fermentative activity (VFA, pH, ammonia, fermentation pattern) in a beneficial way, which is in agreement with previous studies on rabbits (Morisse et al, 1993;Maertens et al, 2004;Volek et al, 2005) or rats (Juśkiewicz et al, 2004 and. Whatever the diet, the activity of pectinase was higher than the activities of other fibrolytic enzymes (xylanase, inulinase, cellulase), which is in agreement with the hierarchy in fibrolytic activities reported in other studies (Marounek et al, 1995;.…”

“…Both the lowest morbidity (P ¼ 0.05) and health risk index (P ¼ 0.03) were recorded in rabbits fed the diet supplemented with inulin. Similarly, a protective effect of fructo-oligosaccharides was recorded in animals experimentally infected with enteropathogenic E. coli (Morisse et al, 1993), and also when inulin was added to a high-pectin diet (Volek et al, 2005). The better health status of rabbits fed the diet with inulin observed in our study was apparently associated with the beneficial effect of inulin on the caecal microbial activity (Table 5).…”

“…These types of inulin have a degree of polymerisation of 2 to 60, with an average ranging from 9 to 25 (Meyer et al, 2004). In rabbits, the addition of inulin to diet had a beneficial effect on caecal fermentative activity (Morisse et al, 1993;Maertens et al, 2004;Volek et al, 2005), which could improve the protection of weaned rabbits against common pathogens. However, effect of dietary supplementation with MOS or inulin on digestive health and growth performance of early weaned rabbits is still insufficiently documented.…”