Problems in the use of cassava as animal feed

摘要: Abstract Since of all the tropical crops cassava ( Manihot esculenta ) provides highest energy per hectare, its use as a replacement for maize (cereals) in animal feed is advocated this review. However, poses number problems which have been grouped under three headings: 1. Chemical factors. Cassava contains cyanogenic glucoside, linamarin, on hydrolysis yields hydrocyanic acid toxic to animals. In small doses, cyanide detoxified thiocyanate by means enzyme rhodanase, making methionine sulphur donor. This amino therefore becomes first limiting factor feeds. Most can be eliminated crushing or fermentation followed heating. The detoxification product potent goitrogen. Moreover, sugars may react with ϵ-amino group lysine Maillard reaction thereby it unavailable and hence second acid. During drying process floor, chips could infected micro-organisms such Aspergillus niger . 2. Nutritional very little protein poor quality so good supplementary source needed. Soyabean lead reduced growth unless supplement provided. Leaf concentrate appears more effective but fish meal best source. Supplementation also suggested maximum efficiency. Oils are important, palm oil easily digestible, improves palatability readily metabolized. A combination molasses (or sugar) seems even effective. affect mineral balance resulting, example, parakeratosis chicks, addition zinc carbonate. 3. Physical Powdered starch produces ulcerogenic effects upon gastric mucosa cassava-based feeds served pellets. advantages pelleting reviewed. high fibre ash content not only deleterious limit choice other ingredients these components. With proper management used substitute will double advantage releasing nutritious human consumption producing cheaper possibly products tropics.