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Effect of fibre source on ileal apparent digestibility of non-starch polysaccharides in rabbits

Published online by Cambridge University Press:  18 August 2016

R. Carabaño
Affiliation:
Departamento de Producción Animal, ETS Ingenieros Agrónomos, Universidad Politécnica, 28040 Madrid, Spain
J. García
Affiliation:
Departamento de Producción Animal, ETS Ingenieros Agrónomos, Universidad Politécnica, 28040 Madrid, Spain
J. C. de Blas
Affiliation:
Departamento de Producción Animal, ETS Ingenieros Agrónomos, Universidad Politécnica, 28040 Madrid, Spain
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Abstract

Sixteen New Zealand White ✕ Californian doe rabbits (four per diet) weighing 3397 (s.e. 378) g, and surgically fitted with a glass T-cannula at the terminal ileum were used to determine the apparent ileal digestibility of non-starch polysaccharides of four fibrous foods. Four diets were formulated to contain paprika meal, olive leaves, lucerne hay or soya-bean hulls as the sole source of fibre. Fibre sources were supplemented with different proportions of soya protein isolate, wheat flour, lard, sodium chloride, calcium carbonate, calcium phosphate, DL-methionine and a mineral/vitamin mix, to obtain diets containing at least 185 g crude protein and 50 g starch per kg. All diets included 2 g/kg of the respective fibre source marked with chromium. Diets were assigned to individually caged rabbits in a completely randomized design and were offered ad libitum throughout the experiment. Dry matter intake was not affected by type of diet. Fibre source affected (P < 0·05) corrected ileal apparent digestibility of total non-strach polysaccharides (NSP), xylose, galactose, glucose and uronic acids. Uronic acids were the best digested monomer at the ileum in all the foodstuffs studied, ranging from 0·195 to 0·522 for olive leaves and paprika meal, respectively. Corrected ileal apparent digestibility of uronic acids was correlated with the uronic acids insoluble in NDF solution, expressed as proportion of total uronic acid content (r =–0·74; P = 0·001), the proportion of large particles (> 1·25 mm; r = –0·71; P < 0·01) and the proportion of fine particles (< 0·315 mm; r = 0·65; P = 0·01). Other monomers (arabinose, mannose, rhamnose and galactose) usually related to pectic substances, also showed in general a greater ileal digestibility than that of total NSP. Taking into account the uronic acids content of the diet and their digestibility, digestible uronic acids accounted for 0·572, 0·528, 0·93 and 0·353 of the total ileal digestible NSP of paprika meal, olive leaves, lucerne hay and soya-bean hulls based diets, respectively. The sum of arabinose, mannose, rhamnose and galactose accounted for 0·15 of total NSP digested at the ileum on average, over the different fibre sources studied. Glucose and xylose were the monomers least digested at the ileum. Their corrected ileal apparent digestibilities were close to zero, except for the paprika meal (0·266 and 0·216) and soya-bean hulls (0·137 and 0·057) based diets. In conclusion, the results of this study indicate that a valuable amount of total NSP is hydrolysed before the caecum in rabbits. However, this hydrolysis affects mainly pectic and readily fermentable substances.

Type
Non-ruminant nutrition, behaviour and production
Copyright
Copyright © British Society of Animal Science 2001

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References

Aspinall, G. O., Beghei, R.and McKay, J. E. 1967. Polysaccharides components of soybeans. Cereal Science Today 12: 225230.Google Scholar
Aspinall, G. O. and Cottrell, I. W. 1971. Polysaccharides of soybeans. VI. Neutral polysaccharides from cotyledon meal. Canadian Journal of Chemistry 49: 10191022.CrossRefGoogle Scholar
Association of Official Analytical Chemists. 1990. Official methods of analysis, 15th edition. Association of Official Analytical Chemists, Arlington, VA.Google Scholar
Ben-Ghedalia, D. and Miron, J. 1984. The digestion of total and cell wall monosaccharides of lucerne by sheep. Journal of Nutrition 114: 880887.CrossRefGoogle ScholarPubMed
Björnhag, G. 1972. Separation and delay of contents in the rabbit colon. Swedish Journal of Agriculture Research 7: 105114.Google Scholar
Carabaño, R., Fraga, M. J., Santomá, G. and Blas, J. C. de. 1988. Effect of diet on composition of cecal contents and on excretion and composition of soft feces and hard feces of rabbits. Journal of Animal Science 66: 901910.Google ScholarPubMed
Carabaño, R., Motta-Ferreira, W., Blas, J. C. de. and Fraga, M. J. 1997. Substitution of sugarbeet pulp for lucerne hay in diets for growing rabbits. Animal Feed Science and Technology 65: 249256.CrossRefGoogle Scholar
Escalona, B., Rocha, R., García, J., Carabaño, R. and Blas, J. C. de. 1999. Characterization of in situ fibre digestion of several fibrous foods. Animal Science 68: 217221.CrossRefGoogle Scholar
Fonty, G. and Gouet, P. H. 1989. Fibre-degrading microorganisms in the monogastric digestive tract. Animal Feed Science and Technology 23: 91107.CrossRefGoogle Scholar
Fraga, M. J., Pérez de Ayala, P., Carabaño, R. and Blas, J. C. de. 1991. Effect of type of fibre on the rate of passage and on the contribution of soft faeces to nutrient intake of finishing rabbits. Journal of Animal Science 69: 15661574.CrossRefGoogle ScholarPubMed
García, G., Galvez, J. and Blas, J. C. de. 1993. Effect of substitution of sugarbeet pulp for barley in diets for finishing rabbits on growth performance and on energy and nitrogen efficiency. Journal of Animal Science 71: 18231830.CrossRefGoogle ScholarPubMed
García, J., R., Carabaño and Blas, J. C. de. 1999. Effect of fiber source on cell wall digestibility and rate of passage in rabbits. Journal of Animal Science 77: 898905.CrossRefGoogle ScholarPubMed
García, J., Carabaño, R., Pérez-alba, L. and J. C. de, Blas. 2000. Effect of fiber source on cecal fermentation and nitrogen recycled through cecotrophy in rabbits. Journal of Animal Science 78: 638646.CrossRefGoogle ScholarPubMed
Gidenne, T. 1987. Effet de l’adition d’un concentré riche en fibres dans une ration à base de foin, distribuée à deux niveaux alimentaires chez la lapine adulte. 2. Mesures de digestibilité. Reproduction, Nutrition, Développement 27: 801810.CrossRefGoogle Scholar
Gidenne, T. 1988. Ileal digestibility measures on cannulated rabbit. In: Proceedings of the fourth world rabbit congress, Budapest, Hungary, p. 345.Google Scholar
Gidenne, T. 1992. Effect of fibre level, particle size and adaptation period on digestibility and rate of passage as measured at the ileum and in the faeces in the adult rabbit. British Journal of Nutrition 67: 133146.CrossRefGoogle ScholarPubMed
Gidenne, T. 1993. Measurement of rate of passage in restricted-fed rabbits: effect of dietary cell wall level on the transit of fibre particles of different sizes. Animal Feed Science and Technology 42: 151163.CrossRefGoogle Scholar
Gidenne, T. 1994. Effets d’une réduction de la teneur en fibres alimentaires sur le transit digestif du lapin. Comparaison et validation de modéles d’ajustement des cinétiques d’excretion fécale des marqueurs. Reproduction, Nutrition, Development 34: 295307.CrossRefGoogle Scholar
Gidenne, T. and Poncet, C. 1985. Digestion chez le lapin en croissance d’une ration á taux élevé de constituants pariétaux: étude méthodologiquee pour le calcul de la digestibilité apparente, par segment digestif. Annales de Zootechnie 34: 429446.CrossRefGoogle Scholar
Gidenne, T. and Ruckebusch, Y. 1989. Flow and passage rate studies at the ileal level in the rabbit. Reproduction, Nutrition, Development 29: 403412.CrossRefGoogle ScholarPubMed
Gidenne, T., Boyssou, T. and Ruckebusch, Y. 1988. Sampling of digestive contents by ileal cannulation in the rabbit. Animal Production 46: 147151.Google Scholar
Goering, H. K. and Van Soest, P. J. 1970. Forage fibre analysis (apparatus, reagents, procedures and some applications). Agricultural handbook no. 379, ARS-United States Department of Agriculture, Washington, DC. Google Scholar
Gouet, P. H. and Fonty, G. 1979. Changes in the digestive microflora of holoxenic rabbits from birth until adulthood. Annales de Biologie Animale, Biochemie et Biophysique 19: 553566.CrossRefGoogle Scholar
Marounek, M., Vovk, S. and Skrivanová, V. 1995. Distribution of activity of hydrolytic enzymes in the digestive tract of rabbits. British Journal of Nutrition 73: 463469.Google ScholarPubMed
Mathers, J. C. 1991. Digestion of non-starch polysaccharides by non-ruminant omnivores. Proceedings of the Nutrition Society 50: 161172.CrossRefGoogle ScholarPubMed
Merino, J. and Carabaño, R. 1992. Effect of type of fibre on ileal and fecal digestibilities. Journal of Applied Rabbit Research 15: 931937.Google Scholar
Motta Ferreira, W., Fraga, M. J. and Carabañ, R. 1996. Inclusion of grape pomace, in substitution for lucerne hay, in diets for growing rabbits. Animal Science 63: 167174.CrossRefGoogle Scholar
Spanish Royal Decree 223/88. 1988. Sobre protección de los animales utilizados para experimentación y otros fines científicos. Boletín Oficial del Estado 67: 85098511.Google Scholar
Statistical Analysis Systems Institute. 1990. SAS/STAT® user’s guide, version 6, fourth edition. SAS Institute Inc., Cary, NC.Google Scholar
Theander, O., P., Åman, Westerlund, E., Andersson, R. and Pettersson, D. 1995. Total dietary fibre determined as neutral sugar residues, uronic acid residues, and klason lignin (the Uppsala method): collaborative study. Journal of the AOAC International 78: 10301044.CrossRefGoogle ScholarPubMed
Uden, P., Colucci, E. P. and Van Soest, J. P. 1980. Investigation of chromium, cerium and cobalt as markers in digesta. Rate of passage studies. Journal of the Science of Food and Agriculture 31: 625632.CrossRefGoogle ScholarPubMed
Van Soest, J. P., Robertson, J. B. and Lewis, B. A. 1991. Methods for dietary fibre, neutral detergent fibre and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74: 35833597.CrossRefGoogle ScholarPubMed
Yu, P. W. S., Chung-Liang, Y. and Hwei-Huarg, H. 1987. A study of rabbit T-type cannulae and its ileal digestibilities. Journal of the Chinese Society of Animal Science 16: 3–4.Google Scholar