Morphometrics of One-Month-Old Tukong Chickens: Indonesia's Indigenous Rumpless Breed

¹ Center for Livestock Biotech Studies, Department of Animal Science, Faculty of Animal Science, Universitas Islam Malang, Malang 65155, Indonesia
² Department of Animal Science, Faculty of Agriculture, Universitas Tanjungpura, Pontianak 78121, Indonesia
³ Department of Animal Production, Faculty of Animal Husbandry, Universitas Padjadjaran, Sumedang 45363, West Java, Indonesia.
⁴ Smart Livestock Industry Study Programme, Faculty of Animal Science, Universitas Brawijaya, Malang 65145, Indonesia

¹ Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

Indonesia is rich in local breeds of chickens that are valuable genetic resources for growth performance and productivity improvement. Among the most notable of these is the Tukong chicken, which is characterized by a rumples phenotype. The present study was conducted to investigate morphometric characteristics of one-month-old Tukong chickens. A total of 25 birds (both males and females) were evaluated. The measure traits included shank length and diameter, tibia and femur length, breast circumference and length, back length, wing length, beak length, and body weight. Descriptive statistics showed that males consistently displayed higher mean values across all traits, with notable differences observed in shank length (5.58 vs. 4.59 cm) and body weight (259.97 vs. 234.20 g). Coefficients of variation (CV) indicated moderate variability, with body weight showing the highest relative dispersion (males: 20.27%; females 16.14%), and tibia length (males: 5.43% females: 8.01%). In summary, the findings suggest that Tukong chickens have relatively uniform body proportions, with breast circumference as the most predictive body weight.