Effects of Dietary Onion Peel Powder (Allium cepa L.) on Ileal Digestive Enzyme Activity and Nutrient Digestibility in Broiler Chickens

Authors

• Miftahul Jannah, Faculty of Animal Science and Technology, Universitas Brawijaya, Malang 65145, IndonesiaFollow
• Irfan H. Djunaidi, Faculty of Animal Science and Technology, Universitas Brawijaya, Malang 65145, IndonesiaFollow
• Osfar Sjofjan, Faculty of Animal Science and Technology, Universitas Brawijaya, Malang 65145, IndonesiaFollow
• Heli Tistiana, Faculty of Animal Science and Technology, Universitas Brawijaya, Malang 65145, IndonesiaFollow
• Adelina Ari Hamiyanti, Faculty of Animal Science and Technology, Universitas Brawijaya, Malang 65145, IndonesiaFollow

Author ORCID Identifier

Miftahul Jannah, https://orcid.org/0009-0004-9027-4191

Irfan H. Djunaidi, https://orcid.org/0000-0002-3422-0760

Osfar Sjofjan, https://orcid.org/0000-0003-1354-4624

Heli Tistiana, https://orcid.org/0009-0006-6904-5364

Adelina Ari Hamiyanti, https://orcid.org/0009-0008-5032-6427

Abstract

This study aimed to evaluate the effect of onion peel powder as a feed additive on digestive enzyme activity and nutrient digestibility in broilers. A total of 144 unsexed Lohmann strain DOC broilers were reared for 35 days (24 units, 6 birds/unit); 1 bird per unit (n = 24) was sampled for ileal digestive enzyme activity, then randomly selected 24 male chickens for digestibility analysis at 36-41 days. This study was arranged using a Completely Randomized Design (CRD) with 6 treatments and 4 replications. The variables observed included digestive enzyme activity (amylase, protease, lipase) and nutrient digestibility (crude protein digestibility, nitrogen retention, and metabolizable energy). Data were analyzed using ANOVA and continued with Duncan's test if there was a significant effect. The results showed that the treatment had a highly significant effect (P

Recommended Citation

Jannah, Miftahul; Djunaidi, Irfan H.; Sjofjan, Osfar; Tistiana, Heli; and Hamiyanti, Adelina Ari (2026) "Effects of Dietary Onion Peel Powder (Allium cepa L.) on Ileal Digestive Enzyme Activity and Nutrient Digestibility in Broiler Chickens," Jurnal Ilmu Ternak Universitas Padjadjaran: Vol. 26: No. 3, Article 2.
DOI: https://doi.org/10.24198/jit.v26i3.1470
Available at: https://journal.unpad.ac.id/jitunpad/vol26/iss3/2