Abstract
Forty-eight rabbits used to investigate the response of growing rabbits to diets containing differently processed cassava peel meals were divided into four groups balanced for sex and weight. These groups were then assigned at random to the experimental treatments. Four diets were formulated such that the diets contained 200 g/kg of the experimental feedstuffs, sun-dried cassava peel meal (S), ensiled cassava peel meal (E) and retted cassava peel meal (R), and the control did not contain any cassava peels. Hydrogen cyanide (HCN) concentration in the processed cassava peel meal was lower relative to the unprocessed meal. It was, however, lowest in R and highest in E. With the exception of S, fibre fractions were lower in the processed meal compared to the unprocessed meal. The E depressed (p < 0.05) feed and digestible nutrient intakes, weight gain, nutrient digestibility, digestible protein (DP), digestible energy (DE) and DP/DE ratio but increased protein intake to gain and feed to gain ratios compared to other diets. Intake of HCN decreased (p < 0.05) successively in this order: R, S and E. The results indicate that retting and sun-drying are more effective in cassava peel detoxification than ensiling, and dietary HCN concentration and intake of 56 and 4 mg/kg BW, respectively, were not toxic under the conditions of the experiment.
Similar content being viewed by others
References
Adeniji, A.A., 2008. Replacement value of maize with enzyme supplemented decomposed blood-rumen content in the diets of weaner rabbits, Asian Journal of Animal and Veterinary Advances 3(2): 104–108
AOAC, 2000. Official Methods of Analysis, 17th edition, Association of official Analytical Chemists, Washington, DC
Ayenor, G.S., 1985. Effects of retting of cassava on product yield and cyanide detoxification. Journal of Food Technology, 20, 89–96
Chhay, T., Borin, K. and Preston, T.R., 2011. Effect of wilting cassava leaves and supplementing them with DL-methionine, on intake, growth and feed conversion in crossbred growing pigs, Livestock Research for Rural Development, 23(4)
Duncan, D.B., 1955. Multiple range and multiple F-tests, Biometrics, 11, 1–42
Iyayi, E.A. and Odueso, O.M., 2003. Response of some metabolic and biochemical indices in rabbits fed varying levels of dietary cyanide, African Journal of Biomedical Research, 6, 43–47
McDonald, P.R.A., Edwards, R.A., Greenhalgh, J.F.D. and Morgan, C.A., 2002. Animal Nutrition, 5th edition, (Longman, UK)
Ngam, P. and Singh, D., 1994. Solid-state substrate fermentation systems and their applications in biotechnology, Journal of Basic Microbiology, 34, 405–423
Oboh, G., 2006. Nutrient enrichment of cassava peels using a mixed culture of Saccharomyces cerevisae and Lactobacillus spp solid media fermentation techniques, Electronic Journal of Biotechnology, 9, 46–49
Ojebiyi O.O., Oladunjoye I.O. and Eso I.R., 2010. The grain replacement value of sun dried cassava (Manihot esculenta crantz) leaf + peel meal with or without DL-methionine supplementation on performance of rabbit bucks in the derived savannah zone of Nigeria, Agricultura Tropica et Subtropica, 43(4): 291–290
Olafadehan, O.A., 2011. Haematological parameters, serum constituents and organ development of growing rabbits as affected by feeding of processed cassava peel, Animal Nutrition and Feed Technology, 11, 41–51
Osakwe, I.I. and Nwose, R.N., 2008. Feed intake and nutrient digestibility of weaner rabbits fed cassava peel as replacement for maize, Animal Research International, 5(1): 770–773
Phuc, B.H.N. and Lindberg, J.E., 2000. Ileal digestibility of amino acids in growing pigs fed cassava root meal diet with inclusion of cassava leaves, leucaena leaves and groundnut foliage, Animal Science, 71, 301–308
Steel, R.G.D. and Torrie, J.H., 1980. Principles and Procedures of Statistics, 2nd edn, (McGraw-Hill, New York)
Tewe, O.O., 1992. Detoxification of cassava products and effects of residual toxins on consuming animals. In: D. Machin and S. Nyvold (eds), Roots, Tubers, Plantains and Bananas in Animal Feeding, (Animal Production and Health, FAO, Rome), Paper 95, pp. 81–98
Tewe, O.O. and Iyayi, E.A., 1989. Cyanogenic glycosides. In: P.R. Cheeke (ed), Toxicants of Plant Origin, Vol. II, Glycosides, (CRS Press, USA), pp. 40–60
Tewe, O.O. and Maner, J.H., 1981. Performance and patho-physiological changes in pregnant pigs fed diets containing different levels of cyanide, Research in Veterinary Science, 30, 147–151
Tweyongyere, R. and Katongole, I., 2002. Cyanogenic potential of cassava peels and their detoxification for utilization as livestock feed, Veterinary and Human Toxicology, 44, 366–369
Udedibie, A.B.I., Anyaegbu, B.C., Onyechekwa, G.C. and Egbuokporo, O.C., 2004. Effects of feeding different levels of fermented and unfermented cassava tuber meals on performance of broilers, Nigerian Journal of Animal Production, 31(2), 211–219
Van Soest, P.J., Robertson, J.B. and Lewis, B.A., 1991. Methods of dietary fibre, neutral detergent fibre and non-starch polysaccharides determination in relation to animal nutrition, Journal of Dairy Science, 74, 3583–359
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Olafadehan, O.A., Olafadehan, O.O., Obun, C.O. et al. Influence of processing cassava peels on the hydrogen cyanide concentration, nutritive value and performance of growing rabbits. Trop Anim Health Prod 44, 285–291 (2012). https://doi.org/10.1007/s11250-011-0016-x
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11250-011-0016-x