1. The Digestive System of the Rabbit 2. Digestion of Starch and Sugars 3. Protein Digestion 4. Fat Digestion 5. Fibre Digestion 6. Energy and Protein Metabolism 7. Minerals, Vitamins and Additives 8. Feed Evaluation 9. Influence of the Diet on Rabbit Meat Quality 10. Nutrition and Pathology 11. Feed Manufacturing 12. Feed Formulation 13. Feeding Behaviour of the Rabbit 14. Feeding Systems for Intensive Production 15. Nutrition and Climatic Environment 16. Nutritional Recommendations and Feeding Management of Angora Rabbits 17. Pet Rabbit Feeding and Nutrition.

Nutrition of the rabbit

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The Nutrition of the Rabbit

A review on the interactions between gut microflora and digestive mucosal immunity. Possible ways to improve the health of rabbits

Caeco-colic digestion in the growing rabbit: impact of nutritional factors and related disturbances

Organic acid odorants of differing carbon number produce systematically different spatial patterns of [14C]2-deoxyglucose uptake in the glomerular layer of the olfactory bulb. Because increasing carbon number correlates with progressive increases in several molecular features, including hydrophobicity, length, and volume, we determined which of these properties was most associated with systematic changes in the location of an anterior, dorsomedial module responding to fatty acids. We exposed groups of rats to two series of organic acids that each had the same number of carbons, but differed in their hydrocarbon structures. These straight-chained, branched, cyclic, and double-bonded molecules differed independently in hydrophobicity, length, and volume. The only molecular property that was strongly correlated with the location of the module was molecular length, suggesting that this molecular feature is the principal determinant of the chemotopic organization of glomeruli within the module. We also found that distinct hydrocarbon structures produced large differences in spatial patterns of 2-deoxyglucose uptake in posterior parts of the bulb. Even subtly distinct structural isomers evoked posterior responses that differed greatly. The odorant 2-methylbutyric acid evoked much greater uptake in the posterior bulb than did its structural isomer 3-methylbutyric acid (isovaleric acid). These data suggest that posterior portions of the bulb may encode specific steric features of odorant molecules and that some odorant features may have an inherent or acquired greater representation than do others. J. Comp. Neurol. 426:330–338, 2000. © 2000 Wiley-Liss, Inc.

Odorant molecular length: one aspect of the olfactory code.

Some microbiological and biochemical parameters of caecal content were studied in 15- to 49-d-old rabbits that were slaughtered sequentially. The ammonia level did not differ before weaning (11.5 mmol/L on average) (P = 0.41) or after weaning (7.4 mmol/L on average) (P = 0.19) but decreased by 40% (P < 0.001) between days 29 and 32. The level of pH decreased linearly (P < 0.001) throughout the period studied. The Escherichia coli counts decreased up to weaning (P < 0.001) and was then not significantly affected by age (P = 0.12). The total volatile fatty acid (VFA) concentration increased between days 15 (8.2 mmol/L) and 25 (33.9 mmol/L) (P < 0.05) and then levelled off below 40 mmol/L. Molar proportions in propionate and in branched-chain fatty acid (BCFA) and valeric acid were high at day 15 but decreased when the animals began to eat solid feed. The C3/C4 ratio reversed at weaning (3.8 on day 15 and 0.5 on day 49) whereas the acetic acid proportion was not affected by age (P = 0.19). High counts of anaerobic microflora were found between 15 and 22 d of age (10(11) bacteria/g of caecal content, on average) and did not change significantly according to the age (at about 10(10) bacteria/g), from day 29 until the end of the experiment (P = 0.29). Amylolytic flora had a similar evolution at a slightly lower level. In contrast, under our breeding conditions cellulolytic microflora slowly colonized the caecum and remained at a low level. The discriminant analysis revealed relationships between ages, intestinal microflora and fermentation parameter; the colibacilli flora was associated with mother-fed animals and amylolytic flora which was linked to BCFA and valeric acid, while the cellulolytic flora was associated with animals older than 4 weeks and linked to the production of C2, C3, C4 and ammonia.

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M. T. S. Padilha

Papers

Relationships between microflora and caecal fermentation in rabbits before and after weaning