Afolayan, M., Dafwang, I. I. & Omage, J. J. (2021). Performance Of Broilers Fed On–Farm Versus Commercial Feeds. Nigerian Journal of Animal Production. 36(1):41–51.

Afrouziyeh, M., Kwakkel, R. P. & Zuidhof, M. J. (2021). Improving A Nonlinear Gompertz Growth Model Using Bird–Specific Random Coefficients In Two Heritage Chicken Lines. Poultry Science. 100(5):101059.

Balitbangtan (2014). Deskripsi Galur Ayam Kampung Unggul Balitbangtan (KUB–1). https://repository.pertanian.go.id/server/api/core/bitstreams/00944040–67f4–483f–9bd4–30b6c65789e7/content. Accessed 11 September 2025.

Barekatain, R., Romero, L. F., Sorbara, J. O. B., & Cowieson, A. J. (2021). Balanced Nutrient Density for Broiler Chicken Using a Range of Digestible Lysine–to–Metabolizable Energy Ratios and Nutrient Density: Growth Performance, Nutrient Utilisation and Apparent Metabolizable Energy. Animal Nutrition. 7(2):430–439.

Biesek, J., Kuźniacka, J., Banaszak, M., Kaczmarek, S., Adamski, M., Rutkowski, A. & Hejdysz, M. (2020). Growth Performance And Carcass Quality In Broiler Chicken Fed On Legume Seeds And Rapeseed Meal. Animals. 10(5):846.

de Sousa, V. C., Biagiotti, D., Sarmento, J. L. R., Sena, L. S., Barroso, P. A., Barjud, S. F. L. & Santos, N. P. da S. (2022). Nonlinear Mixed Models For Characterization Of Growth Trajectory Of New Zealand Rabbits Raised In Tropical Climate. Animal Bioscience. 35(5):648–658.

Elzhov, T., Mullen, K., Spiess, A.–N. & Bolker, B. (2022, April 13). Minpack.lm: R Interface To The Levenberg–Marquardt Nonlinear Least–Squares Algorithm Found In MINPACK, Plus Support For Bounds. CRAN: Contributed Packages. https://doi.org/10.32614/CRAN.package.minpack.lm

Falowo, A. B., Oloruntola, O. D., Atiba, O. I., Ayodele, O. A., Olarotimi, O. J. & Gbore, F. A. (2025). Growth Performance, Carcass Quality, Immune Response, And Production Economics Of Broiler Chicken Fed Avocado Seed Meal Under Feed Restriction. Translational Animal Science. 9:txaf047.

Fatwamaty, & Harun. (2025). Pengaruh Pakan Alternatif Berbasis Tanaman Lokal Terhadap Kinerja Ternak Ayam Kampung. Jurnal Ilmu Peternakan Indonesia. 2(1):10–16.

Ferreira, K., De Souza, E., Freitas, H., & De Araújo Negreiros, G. (2021). Evaluation of Growth Models with Heteroscedastic Errors in Free–Range Broiler Chicken Fed Sorghum. Revista Agrária Acadêmica. 4(6):49–63.

Fox, J., Friendly, M., & Weisberg, S. (2013). Hypothesis Tests for Multivariate Linear Models Using the car Package. The R Journal. 5(1):39.

Geng, S., Zhang, Y., Cao, A., Liu, Y., Di, Y., Li, J., & Zhang, L. (2022). Effects of Fat Type and Exogenous Bile Acids on Growth Performance, Nutrient Digestibility, Lipid Metabolism and Breast Muscle Fatty Acid Composition in Broiler Chicken. Animals. 12(10):1258.

Gržinić, G., Piotrowicz–Cieślak, A., Klimkowicz–Pawlas, A., Górny, R. L., Ławniczek–Wałczyk, A., Piechowicz, L., … Wolska, L. (2023). Intensive Poultry Farming: A Review of the Impact on the Environment and Human Health. Science of The Total Environment. 858:160014.

Hamner, B., & Frasco, M. (2012). Metrics: Evaluation Metrics for Machine Learning. CRAN: Contributed Packages. June 20. https://doi.org/10.32614/CRAN.package.Metrics

Hidayat, C., Wina, E., Ishak, A. B. L., Krisnan, R., Komarudin, Asmarasari, S. A., & Hoesen, Y. A. (2023). Supplementation of Dietary Nano Zinc Phytogenic on Growth Performance and Carcass Traits of the Growing Kampung Unggul Balitbangtan Chicken. South African Journal of Animal Science. 53(3):338–347.

Hifzan, R. M., Hamidi, K. M., Aida, M. T. N., & Salisi, M. S. (2024). Analysis of Growth Curve with Non–Linear Models of Gompertz and Logistics Model in Female Katjang X Boer Goats in Malaysia. Tropical Animal Science Journal. 47(2):155–160.

Hrehova, S., Antosz, K., Husár, J., & Vagaska, A. (2025). From Simulation to Validation in Ensuring Quality and Reliability in Model–Based Predictive Analysis. Applied Sciences. 15(6):3107.

Insani, G. A., Maharani, D., Silvia, S., Handayani, V. P., & Wihandoyo, W. (2022). Reproduction and Growth Performance of Kampung Unggul Balitbangtan (KUB) Chicken Cross. Buletin Peternakan. 46(3):154.

Jia, M., Lei, J., Dong, Y., Guo, Y., & Zhang, B. (2024). The Interactive Effects of Nutrient Density and Breed on Growth Performance and Gut Microbiota in Broilers. Animals. 14(23):3528.

Kafle, A., Bhatt, B. R. B., Nyaupane, S., Neupane, K. K., Dhital, B., & Karn, B. K. L. (2024). Effect of Local Feed Ingredients on Growth Rate of Sakini Chicken in Banke District, Nepal. Journal of the Institute of Agriculture and Animal Science. 38(1):29–39.

Kim, J. W., Sanjayan, N., Leterme, P., & Nyachoti, C. M. (2019). Relative Bioavailability of Phosphorus in High–Protein Sunflower Meal for Broiler Chicken and Effects of Dietary Phytase Supplementation on Bone Traits, Growth Performance, and Apparent Ileal Digestibility of Nutrients. Poultry Science. 98(1):298–305.

Ko, H., Wang, J., Chiu, J. W. C., & Kim, W. K. (2023). Effects of Metabolizable Energy and Emulsifier Supplementation on Growth Performance, Nutrient Digestibility, Body Composition, and Carcass Yield in Broilers. Poultry Science. 102(4):102509.

Lamido, M., Alade, N. K., & Mukaddas, J. (2025). Comparative Analysis of Three Growth Models in Indigenous Normal Feathered Chicken of Nigeria. FUDMA Journal of Animal Production and Environmental Science. 1(1):52–57.

Lee, J., Hosseindoust, A., Kim, K., Kim, T., Mun, J., Chae, B., & Kim, M. (2022). Improved Growth Performance, Antioxidant Status, Digestive Enzymes, Nutrient Digestibility and Zinc Bioavailability of Broiler Chicken with Nano–Sized Hot–Melt Extruded Zinc Sulfate. Biological Trace Element Research. 200(3):1321–1330.

Lenth, R. V. (2017). emmeans: Estimated Marginal Means, aka Least–Squares Means. CRAN: Contributed Packages. October 20. https://doi.org/10.32614/CRAN.package.emmeans

Masir, U., & Hadrawi, J. (2023). Performance of KUB (Ayam Kampung Balitbangtan) Chicken Fed Local and Commercial Feed. Jurnal Riset Veteriner Indonesia (Journal of The Indonesian Veterinary Research).

Mata–Estrada, A., González–Cerón, F., Pro–Martínez, A., Torres–Hernández, G., Bautista–Ortega, J., Becerril–Pérez, C. M., … Sosa–Montes, E. (2020). Comparison of Four Nonlinear Growth Models in Creole Chicken of Mexico. Poultry Science. 99(4):1995–2000.

Mirhoseini, S. Z., Ghavi Hossein–Zadeh, N. G., & Hadinezhad, F. (2018). Comparison of Non–Liner Growth Models to Describe the Growth Curve from Birth to Yearling in Markhoz Goat. Research on Animal Production. 8(18):131–138.

Narinç, D., Narinç, N. Ö., & Aygün, A. (2017). Growth Curve Analyses in Poultry Science. World’s Poultry Science Journal. 73(2):395–408.

Ogle, D. H., Doll, J. C., Wheeler, A. P., & Dinno, A. (2015). FSA: Simple Fisheries Stock Assessment Methods. CRAN: Contributed Packages. October 8. https://doi.org/10.32614/CRAN.package.FSA

Olejnik, K., Popiela, E., & Opaliński, S. (2022). Emerging Precision Management Methods in Poultry Sector. Agriculture. 12(5):718.

Oryza, S. M., Pootthachaya, P., Pintaphrom, N., Tanpong, S., Unnawong, N., Cherdthong, A., … Wongtangtintharn, S. (2024). Sustainable Poultry Nutrition Using Citric Acid By–Products from Rice to Boost Growth and Carcass Yield in Thai KKU 1 Broiler Chicken. Animals. 14(23):3358.

Portet, S. (2020). A Primer on Model Selection Using the Akaike Information Criterion. Infectious Disease Modelling. 5:111–128.

Prasetianti, D., Hayati, R. N., & Prabowo, A. (2025). The Effect of Bread Waste Utilization in Feed on Kampung Unggul Balitbangtan (KUB) Chicken Growth. IOP Conference Series: Earth and Environmental Science. 1460(1):012015.

Prasetyo, A., Prabowo, A., Sudrajad, P., & Hayati, R. N. (2021). Effectiveness of Using Local Ingredients Ration to Increase KUB Chicken Productivity in the Grower Period. IOP Conference Series: Earth and Environmental Science. 788(1):012037.

Quintana–Ospina, G. A., Alfaro–Wisaquillo, M. C., Oviedo–Rondon, E. O., Ruiz–Ramirez, J. R., Bernal–Arango, L. C., & Martinez–Bernal, G. D. (2023). Data Analytics of Broiler Growth Dynamics and Feed Conversion Ratio of Broilers Raised to 35 d under Commercial Tropical Conditions. Animals. 13(15):2447.

Rodde, C., Chatain, B., Vandeputte, M., Trinh, T. Q., Benzie, J. A. H., & de Verdal, H. (2020). Can Individual Feed Conversion Ratio at Commercial Size be Predicted from Juvenile Performance in Individually Reared Nile Tilapia Oreochromis niloticus?. Aquaculture Reports. 17:100349.

Saragih, H. T., Viniwidihastuti, F., Lembayu, R. P., Kinanthi, A. R., Kurnianto, H., & Lesmana, I. (2019). Phenotypic Characteristics of Exotic–Broiler, Kampung, Male Exotic–Layer, KUB–1 and Pelung Chicken. Jurnal Ilmu Ternak dan Veteriner. 24(1):9–14.

Sari, M. L., Tantalo, S., & Nova, K. (2017). Performa Ayam KUB (Kampung Unggul Balitnak) Periode Grower pada Pemberian Ransum dengan Kadar Protein Kasar yang Berbeda. Jurnal Riset dan Inovasi Peternakan (Journal of Research and Innovation of Animals). 1(3).

Sartika, T., & Iskandar, S. (2019). The Productivity of 4th Generation KUB–2 Chicken. Jurnal Ilmu Ternak dan Veteriner. 24(4):151–157.

Sumantri, C., Khaerunnisa, I., & Gunawan, A. (2020). The Genetic Quality Improvement of Native and Local Chicken to Increase Production and Meat Quality in Order to Build the Indonesian Chicken Industry. IOP Conference Series: Earth and Environmental Science. 492(1):012099.

Van der Klein, S. A. S., Kwakkel, R. P., Ducro, B. J., & Zuidhof, M. J. (2020). Multiphasic Nonlinear Mixed Growth Models for Laying Hens. Poultry Science. 99(11):5615–5624.

Waithaka, M. K., Osuga, I. M., Kabuage, L. W., Subramanian, S., Muriithi, B., Wachira, A. M., & Tanga, C. M. (2022). Evaluating the Growth and Cost–Benefit Analysis of Feeding Improved Indigenous Chicken with Diets Containing Black Soldier Fly Larva Meal. Frontiers in Insect Science. 2.

Wickham, H. (2016). tidyverse: Easily Install and Load the “Tidyverse.” CRAN: Contributed Packages. September 9. https://doi.org/10.32614/CRAN.package.tidyverse

Wickham, H., Chang, W., Henry, L., Pedersen, T. L., Takahashi, K., Wilke, C., … van den Brand, T. (2007). ggplot2: Create Elegant Data Visualisations Using the Grammar of Graphics. CRAN: Contributed Packages. June 1. https://doi.org/10.32614/CRAN.package.ggplot2

Zampiga, M., Calini, F., & Sirri, F. (2021). Importance of Feed Efficiency for Sustainable Intensification of Chicken Meat Production: Implications and Role for Amino Acids, Feed Enzymes and Organic Trace Minerals. World’s Poultry Science Journal. 77(3):639–659.

Zhou, H., Cheng, H., Wang, Y., Duan, D., Han, J., Zhou, S., … Li, X. (2025). Development of a Feed Conversion Ratio Prediction Model for Yorkshire Boars Using Cumulative Feed Intake. Animals. 15(4):507.