@article {10.3844/ajavsp.2026.21.02.021,
article_type = {journal},
title = {Growth Performance and Duodenal Morphometry of 1-6 Week Old Kampung Chickens Supplemented With L-Leucine},
author = {Lisnahan, Charles Venirius and Noach, Steffanie Merlin Clyricia and Pardosi, Lukas and Koni, Theresia Nur Indah},
volume = {21},
number = {2},
year = {2026},
month = {Sep},
pages = {21-1},
doi = {10.3844/ajavsp.2026.21.02.021},
url = {https://thescipub.com/abstract/ajavsp.2026.21.02.021},
abstract = {This study evaluated the effects of dietary L-leucine supplementation on growth performance and duodenal morphometry of Kampung chickens during the starter phase (1–6 weeks). A total of 600 one-week-old Kampung chickens were randomly assigned to five dietary treatments with six replicates of 20 birds each in a completely randomized design. The treatments consisted of a basal diet without L-leucine (T0) and diets supplemented with 0.50% (T1), 0.75% (T2), 1.00% (T3), and 1.25% (T4) L-leucine, selected to evaluate a graded range of leucine supplementation in relation to growth performance and intestinal development. Growth parameters (body weight, body weight gain, feed intake, and feed conversion ratio), carcass traits, and duodenal morphometry (villus height, villus width, and crypt depth) were measured. Data were analyzed using analysis of variance followed by Duncan’s multiple range test. Dietary L-leucine supplementation significantly affected body weight, body weight gain, feed conversion ratio, carcass traits, and duodenal morphometry (P},
journal = {American Journal of Animal and Veterinary Sciences},
publisher = {Science Publications}
}