Graded Replacement of Corn Cob Meal on Rice Bran Supplementation with and Without Cellulase for Broiler Chicken
DOI:
https://doi.org/10.65339/ijsair.V2.I2.448Keywords:
Agricultural By-Products, Broiler Chickens, Cellulase Supplementation, Corn Cob Meal, Feed Efficiency, Meat Quality, Nutrient Utilization, Rice Bran, Sustainable Poultry ProductionAbstract
This study evaluated the effects of graded levels of rice bran and corn cob meal with or without cellulase supplementation on the growth performance, carcass characteristics, meat quality, and economic efficiency of broiler chickens. Anchored on the Nutrient Utilization Theory and Enzyme Supplementation Theory, the study aimed to determine whether cellulase could improve nutrient utilization and performance in broilers fed high-fiber alternative feed ingredients. A 2 × 5 factorial experiment in a Completely Randomized Design (CRD) was employed using 150 Cobb 500 broiler chicks distributed into ten dietary treatments with three replications. The treatments consisted of different ratios of rice bran and corn cob meal with and without cellulase supplementation. Data on growth performance, carcass traits, meat quality, and economic returns were analyzed using two-way analysis of variance (ANOVA). Results revealed that dietary composition significantly affected growth performance. Broilers fed the 100% rice bran diet achieved the highest final body weight, daily gain, and feed efficiency, while increasing levels of corn cob meal negatively affected nutrient utilization and feed conversion ratio due to high fiber content. Cellulase supplementation did not significantly improve growth performance or carcass characteristics; however, it significantly enhanced meat quality traits such as tenderness, texture, juiciness, and overall acceptability. The 50:50 rice bran and corn cob meal diet with cellulase supplementation produced the best sensory quality, while the 100% rice bran diet with cellulase supplementation generated the highest profitability and return on capital. The study concluded that rice bran is a more suitable alternative feed ingredient than corn cob meal for broiler production, while cellulase functions more effectively as a meat quality enhancer than as a direct growth promoter in high-fiber diets. The study supports SDG 2 (Zero Hunger) by promoting sustainable and efficient poultry production using alternative feed resources, and SDG 12 (Responsible Consumption and Production) through the productive utilization of agricultural by-products. The findings contribute to sustainability by encouraging cost-effective feed strategies, reducing agricultural waste, and improving resource efficiency in poultry production systems.
References
Attia, Y. A., Ashour, E. A., Nagadi, S. A., Farag, M. R., Bovera, F., & Alagawany, M. (2023). Rice bran as an alternative feedstuff in broiler nutrition and impact of Liposorb® and vitamin E-Se on sustainability of performance, carcass traits, blood biochemistry, and antioxidant indices. Veterinary Sciences, 10(4), 299. https://doi.org/10.3390/vetsci10040299
Aviagen. (2025). Ross broiler management handbook (Version 2025) [PDF]. Aviagen. https://aviagen.com/assets/Tech_Center/Ross_Broiler/Aviagen-ROSS-Broiler-Handbook-EN.pdf
Bamigboye, O. O. (2012). Microbial degradation of maize cob and its assessment for use as broiler feed supplement (Doctoral thesis, University of Ibadan). University of Ibadan Institutional Repository. https://repository.ui.edu.ng/server/api/core/bitstreams/59887379-510e-473a-91c9-4281d5f0c8b7/content
Bamigboye, T. J. (2012). Effects of enzyme supplementation on the nutritional value of high-fiber diets for poultry. International Journal of Poultry Science, 11(5), 263–268.
Bayaua, A. F. C., Barroga, A. J., Badua, A. T., & San Andres, J. V. (2025). Feeding value of unfermented and fermented corncob. International Journal of Environmental & Agriculture Research, 11(6), https://ijoear.com/assets/articles_menuscripts/file/IJOEAR-JUN-2025-46.pdf
Bedford, M. R., & Schulze, H. (1998). Exogenous enzymes for pigs and poultry. Nutrition Research Reviews, 11(1), 91–114.
BMC Veterinary Research. (2021). Effects of different feeding regimens with protease supplementation on growth, amino acid digestibility, economic efficiency, blood biochemical parameters, and intestinal histology in broiler chickens. https://doi.org/10.1186/s12917-021-02946-2
Chen, X., Zhang, L., Xing, T., Zhao, L., & Gao, F. (2025). Effects of corn complete replacement by broken rice, wheat, and rice bran and enzyme preparation supplementation on growth performance, meat quality, digestive function, and glucose metabolism of Langshan chickens. Journal of the Science of Food and Agriculture. Advance online publication. https://doi.org/10.1002/jsfa.14347
Choct, M. (2006). Enzymes for the feed industry: Past, present and future. World’s Poultry Science Journal, 62(1), 5–16.
Cobb-Vantress. (2022). Cobb500 broiler performance & nutrition supplement [PDF]. Cobb-Vantress. https://www.cobbgenetics.com/assets/Cobb-Files/2022-Cobb500-Broiler-Performance-Nutrition-Supplement.pdf
Domingo, S. N., Rosellon, M. A. D., Lorenzo, P. J. M., & Manejar, A. J. A. (2022). Domestic benchmarking of the Philippine livestock, dairy, and poultry industries (PIDS Discussion Paper Series No. 2022-19). Philippine Institute for Development Studies.
Groff, M. C., Flores, L. F., Vaidya, K., & Priyadarshini Priyanka, P. (2025). Agricultural renewable residues for a sustainable agro-industrial production. In M. Shaaban (Ed.), Soils and sustainable agriculture: Interplay of soil, plant, water and environmental systems for sustainable agriculture (pp. 809–836). Springer. https://doi.org/10.1007/978-3-031-91114-9_34
Holland, C., Ryden, P., Edwards, C. H., & Grundy, M. M.-L. (2020). Plant cell walls: Impact on nutrient bioaccessibility and digestibility. Foods, 9(2), 201. https://doi.org/10.3390/foods9020201
Hosseini, S. M., Afshar, M., & Sayyazadeh, H. (2020). Effects of feed form and xylanase supplementation on performance and carcass characteristics of broiler chickens fed wheat–soybean diets. Poultry Science, 99(2), 1038–1047. https://doi.org/10.1016/j.psj.2019.10.046
Juan, J. (2024). New generation feed enzymes on the production performance and microbiome of chicken (PhD thesis). University of Liverpool.
Kühne, W. (1878). Über das Verhalten der ungeformten Fermente. Verhandlungen des Naturhistorisch-Medizinischen Vereins zu Heidelberg, 1, 190–193.
Munawar, Z., Amjid, S., Ramzan, F., Rafique, A., Hassan, S., Anwar, U., Mehmood, M., Farooq, U., Khalid, M. F., Mustafa, R., Riaz, M., Aziz Ur Rahman, M., & Abbas, W. (2025). Effects of partial soybean meal replacement with sunflower meal and non-starch polysaccharide degrading enzymes supplementation on broiler growth performance, nutrient digestibility, and gut morphology. Veterinary World, 18(3), 695–704. https://doi.org/10.14202/vetworld.2025.695-704
Nguyen, H. T., Bedford, M. R., & Morgan, N. K. (2021). Importance of considering non-starch polysaccharide content of poultry diets. Animal Feed Science and Technology, 276, 619–637. https://doi.org/10.1080/00439339.2021.1921669
Ojeda, J. A. A. C. (2023). Factors affecting corn nutritional and energy value for broilers and their impact on feed manufacturing, live performance, and meat quality (Publication No. 30984003) [Doctoral dissertation, North Carolina State University]. ProQuest Dissertations & Theses Global.
Olukosi, O. A., Cowieson, A. J., & Adeola, O. (2016). Energy utilization and carcass characteristics of broilers fed diets supplemented with exogenous enzymes. Poultry Science, 95(9), 2241–2251. https://doi.org/10.3382/ps/pew130
Perim, F. S., Silva, W. J. Da, Souza, D. O. De, Ulhoa, C. J., Rezende, C. F., Santos, L. F. Dos, Santos, F. R. Dos, Silva, F. G., & Minafra, C. S. (2024). Effects of the addition of Trichoderma reesei cellulase to broiler chicken diets for a 21-day period. Animals, 14(10), 1467. https://doi.org/10.3390/ani14101467
Rashid, M. T., Liu, K., Han, S., & Jatoi, M. A. (2022). The effects of thermal treatment on lipid oxidation, protein changes, and storage stabilization of rice bran. Foods, 11(24), Article 4001.
Ravindran, V. (2018). Feed enzymes: The science, practice, and metabolic realities. Journal of Applied Poultry Research, 27(4), 628–636. https://doi.org/10.3382/japr/pfy033
Rivera, G. M., & Casinillo, L. F. (2022). Another look at sensory attributes of broiler chickens fed with non-fermented and fermented diets. Innovative Technology and Management Journal, 5(1), 1–10. https://doi.org/10.70954/3m9f9925
Sari, M., Ismoyowati, I., & Yuwanta, T. (2019). Effects of dietary fiber level on growth performance and feed efficiency in broiler chickens. Journal of Animal Physiology and Animal Nutrition, 103(2), 456–463. https://doi.org/10.1111/jpn.13038
Shah, A. M., Zhang, H., Shahid, M., Ghazal, H., Shah, A. R., Niaz, M., Naz, T., Ghimire, K., Goswami, N., Shi, W., Xia, D., & Zhao, H. (2025). The vital roles of agricultural crop residues and agro-industrial by-products to support sustainable livestock productivity in subtropical regions. Animals, 15(8), 1184. https://doi.org/10.3390/ani15081184
Singh, A. K., & Kim, W. K. (2021). Effects of dietary fiber on nutrients utilization and gut health of poultry: A review of challenges and opportunities. Animals, 11(1), 181. https://doi.org/10.3390/ani11010181
Yaqoob, M. U., Yousaf, M., Iftikhar, M., Hassan, S., Wang, G., Imran, S., Zahid, M. U., Iqbal, W., & Wang, M. (2022). Effect of multi-enzymes supplementation on growth performance, meat quality, ileal digestibility, digestive enzyme activity and caecal microbiota in broilers fed low-metabolizable energy diet. Animal Bioscience, 35(7), 1059–1068. https://doi.org/10.5713/ab.21.0402
