Fanelli Natalia S, Torres-Mendoza Leidy J, Abelilla Jerubella J, Stein Hans H
Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA.
DSM Nutritional Products, Mapletree Business City 117440, Singapore.
Anim Biosci. 2023 Jun;36(6):908-919. doi: 10.5713/ab.22.0360. Epub 2023 Feb 23.
Information about the chemical composition of cassava-based feed ingredients is needed to accurately formulate animal diets. A study was conducted to determine the chemical composition of cassava-based feed ingredients and to test the hypothesis that there is variation in chemical composition among cassava products originating from different South-East Asian countries.
Sources of dried peeled and unpeeled cassava roots, cassava chips, cassava meal, high-ash cassava meal, and cassava residue were used. All samples were analyzed for dry matter, gross energy, nitrogen, amino acids (AA), acid-hydrolyzed ether extract (AEE), ash, minerals, total starch, insoluble dietary fiber, and soluble dietary fiber. Samples of peeled and unpeeled cassava roots, cassava chips, and cassava meal were also analyzed for sugars.
High-ash cassava meal had greater (p<0.05) dry matter and ash, but lower (p<0.05) total starch and gross energy than all other cassava products. Peeled cassava roots, unpeeled cassava roots, and cassava chips had greater (p<0.05) total starch than the other cassava-based ingredients. Cassava residue had greater (p<0.05) concentrations of lysine, insoluble dietary fiber, and soluble dietary fiber compared with the other cassava products, but tryptophan and glutamic acid were greater (p<0.05) in peeled cassava roots, cassava chips, and cassava meal samples compared with the other ingredients. Concentration of most minerals was greater (p<0.05) in high-ash cassava meal than in the other cassava products.
Cassava-based ingredients sold as peeled roots, unpeeled roots, chips, or meal have chemical compositions that are not different from each other, and peeling has little impact on chemical composition. High-ash cassava meal has lower nutritional quality compared with other cassava products due to low starch and gross energy. The high fiber content in cassava residue makes this ingredient more suitable for ruminants and sows than for younger pigs or poultry.
准确配制动物日粮需要了解木薯基饲料原料的化学成分。开展了一项研究以确定木薯基饲料原料的化学成分，并检验源自不同东南亚国家的木薯产品在化学成分上存在差异这一假设。
使用了去皮和未去皮木薯干根、木薯片、木薯粉、高灰木薯粉和木薯渣的来源。对所有样品进行干物质、总能、氮、氨基酸（AA）、酸水解乙醚提取物（AEE）、灰分、矿物质、总淀粉、不溶性膳食纤维和可溶性膳食纤维分析。还对去皮和未去皮木薯根、木薯片和木薯粉样品进行了糖分析。
高灰木薯粉的干物质和灰分含量高于（p<0.05）所有其他木薯产品，但总淀粉和总能低于（p<0.05）所有其他木薯产品。去皮木薯根、未去皮木薯根和木薯片的总淀粉含量高于（p<0.05）其他木薯基原料。与其他木薯产品相比，木薯渣的赖氨酸、不溶性膳食纤维和可溶性膳食纤维浓度更高（p<0.05），但与其他原料相比，去皮木薯根、木薯片和木薯粉样品中的色氨酸和谷氨酸含量更高（p<0.05）。高灰木薯粉中大多数矿物质的浓度高于（p<0.05）其他木薯产品。
作为去皮根、未去皮根、片或粉出售的木薯基原料的化学成分彼此无差异，去皮对化学成分影响很小。由于淀粉和总能含量低，高灰木薯粉的营养质量低于其他木薯产品。木薯渣中的高纤维含量使其比幼猪或家禽更适合反刍动物和母猪。
