Chaweewan, K., Kanyarang, W., Phonkate, N., Sitthigripong, R., Sivapirunthep, P., Chaosap, C. and Limsupavanich, R. 2023. Effect of dietary protein levels on productive performance and carcass traits of Thai native pigs from different geometric regions. International Journal of Agricultural Technology. 19, 4 (Jul. 2023), 1495–1504.