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Digestibility of a nutritionally-balanced cassava (Manihot esculenta Crantz) diet and its effect on growth in young male dogs

Published online by Cambridge University Press:  09 March 2007

Beryl P. Kamalu
Beryl P. Kamalu
Affiliation:
Department of Veterinary Pathology and Microbiology, University of Nigeria, Nsukka, Nigeria
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Abstract

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Experiments were carried out to study the digestibility of a cassava (gari) diet and its effect on growth in young male dogs. Three groups of dogs were fed on diets with rice (control), cassava (gari), and rice+cyanide respectively as the carbohydrate source. Each diet contained 130 g crude protein (nitrogenx6.25)/kg, was supplemented with vitamins and minerals, and was fed for 14 weeks. Variables measured were body-weight gain, bone growth, plasma alkaline phosphatase (EC 3.1.3.1) activity, total serum 3,5,3'-triiodothyronine (T3) and some plasma free amino acids. The apparent digestibilities of dry matter, protein and fat were not significantly different in the three groups, but the digestibility of gari fibre was significantly lower than the digestibility of rice fibre when fed to dogs (P < 0.05). Proximate analysis of the faeces showed that the group of dogs fed on the gari diet had faeces which had a significantly higher moisture content than the faeces of the other groups (P < 0.05), and also a significantly higher fibre content (P < 0.05). There was no significant difference in body-weight gain and bone growth between the control and gari-fed groups of dogs, but these variables were significantly lower in the dogs fed on the rice+cyanide diet (P < 0.05). At the end of the 14-week experimental period total serum T3 and plasma alkaline phosphatase activity were not significantly different between the control group of dogs and the gari-fed group, but were significantly lower in the rice+cyanide group. Plasma free methionine, leucine, isoleucine and valine concentrations were higher in the rice+cyanide group of dogs than in the control group and the gari group, indicating that these amino acids were accumulating and not being utilized for protein synthesis and growth to the same extent in the rice+cyanide group of dogs as in the other groups. It was concluded that the digestibilities of cassava starch and rice starch were the same in the dog but that rice fibre was more digestible in the dog than cassava fibre. It was also concluded that growth proceeded normally when a balanced gari diet or a balanced rice diet containing 130 g crude protein/kg was fed to dogs, but growth was retarded when a balanced rice+cyanide diet containing 130 g crude protein/kg was fed to dogs because total serum T3 concentration became greatly depressed.

Keywords

Cassava dietDigestibilityDog
Type
Growth and Development
Information
British Journal of Nutrition , Volume 66 , Issue 2 , September 1991 , pp. 199 - 208
Copyright
Copyright © The Nutrition Society 1991

References

REFERENCES

Association of Official Agricultural Chemists (1975). Official Methods of Analysis, 12th ed. Washington, DC: Association of Official Agricultural Chemists.Google Scholar
Barry, T. N., Duncan, S. J., Sadler, W. A., Miller, K. R. & Sheppard, A. D. (1983). Iodine metabolism and thyroid hormone relationships in growing sheep fed kale (Brassica oleracea) and ryegrass (Lolium perenne) clover (Trifolium repens) fresh-forage diets. British Journal of Nutrition 49, 241–253.CrossRefGoogle ScholarPubMed
Crampton, E. W. & Lloyd, L. E. (1959). Fundamentals of Nutrition. San Francisco: W. H. Freeman and Co.Google Scholar
Delange, F., Bourdoux, P., Colinet, E., Courtois, P., Hennart, P., Lagasse, R., Mafuta, M., Seghero, P., Thilly, C., Vanderpas, J., Yunga, Y. & Ermans, F. M. (1982). Nutritional factors involved in the goitrogenic action of cassava. In Cassava Toxicity and Thyroid: Research and Public Health Issues. Proceedings of a Workshop held in Ottawa, 1982, International Development Research Centre Monograph 207c pp. 17–26 [Delange, F. and Ahluwalia, R., editors]. Ottawa, Canada: International Development Research Centre.Google Scholar
Duncan, D. B. (1955). Multiple range and multiple F tests. Biometrics 11, 1–42.CrossRefGoogle Scholar
Gaines Dog Research Center (1968). Basic Guide to Canine Nutrition 2nd ed. White Plains, New York: General Foods Corporation.Google Scholar
Giesecke, D. (1985). Species differences relevant to nutrition and metabolism research. In Clinical Nutrition and Metabolic Research. Proceedings of the 7th Congress of European Society of Parenteral and Enteral Nutrition, Munich, 1985, pp. 311–328 [Dietze, G.Grunert, A., Kleinberger, G. & Wolfram, G., editors]. Basel: Karger.Google Scholar
Hill, D. G. (1977). Physiological and biochemical responses of rats given potassium cyanide or linamarin. In Cassava as Animal Feed. Proceedings of a Workshop held at the University of Guelph, 1977, International Development Research Centre Monograph 095e pp. 33–42 [Neste], E. and Graham, M., editors]. Ottawa, Canada: International Development Research Centre.Google Scholar
Hutagalung, R. I. (1977). Additives other than methionine in cassava diets. In Cassava as Animal Feed. Proceedings of a Workshop held at University of Guelph, 1977, International Development Research Centre Monograph 095e pp. 18–32 [Nestel, B. and Graham, M., editors]. Ottawa, Canada: International Development Research Centre.Google Scholar
International Development Research Centre, (1977). Discussion conclusions. In Cassava as Animal Feed. Proceedings of a Workshop held at the University of Guelph, 1977, International Development Research Centre Monograph 095e pp. 127–130 [Nestel, B. and Graham, M., editors]. Ottawa, Canada: International Development Research Centre.Google Scholar
Jennings, T. J. (1971). A Background to Biochemistry. Oxford: Pergamon Press.Google Scholar
Johnson, R. N. & Raymond, W. D. (1965). The chemical composition of some tropical food plants. IV. Manioc. Tropical Science 7, 109–115.Google Scholar
Kamalu, B. P. (1991). The effect of a nutritionally-balanced cassava (Manihot esculenta Crantz) diet on endocrine function using the dog as a model. I. Pancreas. British Journal of Nutrition 65, 365–372.CrossRefGoogle Scholar
Maner, J. H. & Gomez, G. (1973). Implications of cyanide toxicity in animal feeding studies using high cassava ration. In Chronic Cassava Toxicity. Proceedings of an Interdisciplinary Workshop held in London, 1973, International Development Research Centre Monograph 010e pp. 113–120 [Nestel, B. and Maclntyre, R., editors]. Ottawa, Canada: International Development Research Centre.Google Scholar
Millward, D. J., Garlick, P. J., Nnanyelugo, D. O. & Waterlow, J. C. (1976). The relative importance of muscle protein synthesis and breakdown in the regulation of muscle mass. Biochemical Journal 156, 185–188.CrossRefGoogle ScholarPubMed
Nicol, B. M. & Phillips, P. G. (1978). The utilization of proteins and amino acids in diets based on cassava (Manihot utilissima), rice or sorghum (Sorghum satina) by young Nigerian men of low income. British Journal of Nutrition 39, 271–287.CrossRefGoogle Scholar
Phillips, T. P. (1982). An overview of cassava consumption and production. In Cassava Toxicity and Thyroid: Research and Public Health Issues. Proceedings of a Workshop held in Ottawa, 1982, International Development Research Centre Monograph 207e pp. 83–88 [Delange, F. and Ahluwalia, R., editors]. Ottawa, Canada: International Development Research Centre.Google Scholar
Van Soest, P. J. (1982). Nutritional Ecology of the Ruminant, Oregon: O & B Books Inc.Google Scholar