Osei-Adjei Agnes, Hamidu Jacob Alhassan, Adjei-Mensah Benjamin, Hanson Priscilla Nyameyie Ama, Sarfo Goodman Kantanka, Donkoh Armstrong
Department of Animal Science, Faculty of Agriculture Kwame Nkrumah University of Science and Technology Kumasi Ghana.
Department of Animal Science University of Ghana Legon Ghana.
Food Sci Nutr. 2025 Jun 7;13(6):e70360. doi: 10.1002/fsn3.70360. eCollection 2025 Jun.
A total of 360 1-week-old broiler chicks were utilized in a 6-week experimental study designed to evaluate the effects of varying levels of cassava starch residue (CSR) on growth performance, hematological profiles, nutrient digestibility, and carcass quality in broiler chickens. The chicks were raised in floor pens and divided into six dietary treatments, each comprising 60 birds, with five replicates in a completely randomized design. CSR was incorporated into the diet at inclusion levels of 0%, 20%, 30%, 40%, 50%, and 60%, replacing maize. CSR contains lower quantities of anti-nutrients such as phytates, oxalates, tannins, saponins, cyanide, and alkaloids, making it more beneficial for farmers to use it in broiler diets without adverse effects. By Day 49, all CSR treatment groups had significantly lower average daily weight gain and final body weight ( < 0.05) compared to the control group. The feed conversion ratio (FCR) was significantly improved ( < 0.05) in the control, 20%, and 30% CSR groups compared to the 40%, 50%, and 60% CSR groups. Additionally, crude fiber retention was significantly higher ( < 0.05) in the CSR treatment diets than in the control diet. Thus, it is suggested that CSR can replace maize up to a 30% inclusion level to optimize feed efficiency and improve carcass yield in broiler chickens.
总共360只1周龄的肉鸡雏鸡被用于一项为期6周的实验研究，该研究旨在评估不同水平的木薯淀粉残渣（CSR）对肉鸡生长性能、血液学指标、养分消化率和胴体品质的影响。雏鸡饲养在地面围栏中，分为六种日粮处理组，每组60只鸡，采用完全随机设计，每组有五个重复。CSR以0%、20%、30%、40%、50%和60%的添加水平加入日粮中，替代玉米。CSR含有较低量的抗营养物质，如植酸盐、草酸盐、单宁、皂苷、氰化物和生物碱，这使得农民在肉鸡日粮中使用它更有益且无不良影响。到第49天，与对照组相比，所有CSR处理组的平均日增重和终末体重均显著降低（P＜0.05）。与40%、50%和60%CSR组相比，对照组、20%和30%CSR组的饲料转化率（FCR）显著提高（P＜0.05）。此外，CSR处理日粮中的粗纤维保留率显著高于对照日粮（P＜0.05）。因此，建议CSR在添加水平达30%时可替代玉米，以优化饲料效率并提高肉鸡的胴体产量。
