Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets

Najwa Omar Hıba; Seher Küçükersan; Gonca Öztap Özen

doi:10.33988/auvfd.1867391

Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets

Abstract

This study was conducted to determine the effects of supplementing broiler diets with olive leaf extract (OLE) and chitosan- and alginate-coated olive leaf extract (C-OLE) on performance; internal organ weights; selected blood serum biochemical values; breast- and thigh-meat pH; breast-meat MDA values; intestinal pH; tibia and femur morphometric characteristics (width, length, and weight); and dry matter levels and ammonia concentrations in litter and feces. In this study, OLE (1.5%) was subsequently encapsulated with alginate (1%) and chitosan (1%). After drying, the alginate- and chitosan-coated olive leaf extract was added to broiler rations at 1%. The research was conducted over 37 days with 105 one-day-old male broiler chicks. The chicks were randomly allocated to three groups: one control group and two treatment groups. The control group received a basal diet without supplementation. In contrast, one treatment group was fed a diet supplemented with OLE, and the other was fed a diet supplemented with C-OLE; each supplement contained 125 mg/kg oleuropein. On day 37, statistically significant differences were observed between the treatment groups and the control group in body weight, body weight gain, feed intake, feed conversion rate, the European Production Efficiency Factor (EPEF), and some organ weights (P<0.05). In conclusion, encapsulated olive leaf extract containing 125 mg/kg oleuropein may improve the bioavailability of phenolic compounds and may represents a promising natural feed additive for broiler production.

Keywords

References

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Details

Primary Language

English

Subjects

Veterinary Sciences (Other)

Journal Section

Research Article

Authors

Najwa Omar Hıba This is me
0009-0008-3343-9438
Libya

Seher Küçükersan
0000-0002-2882-9203
Türkiye

Gonca Öztap Özen ^*
0000-0003-2982-7055
Türkiye

Early Pub Date

August 19, 2026

Publication Date

-

Submission Date

January 19, 2026

Acceptance Date

May 15, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

DOI

https://doi.org/10.33988/auvfd.1867391

IZ

https://izlik.org/JA58HR49CG

Cite

RIS / Bibtex

APA

Hıba, N. O., Küçükersan, S., & Öztap Özen, G. (2026). Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Advanced Online Publication. https://doi.org/10.33988/auvfd.1867391

AMA

1.Hıba NO, Küçükersan S, Öztap Özen G. Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets. Ankara Univ Vet Fak Derg. 2026;(Advanced Online Publication). doi:10.33988/auvfd.1867391

Chicago

Hıba, Najwa Omar, Seher Küçükersan, and Gonca Öztap Özen. 2026. “Effects of Chitosan- and Alginate-Encapsulated Olive Leaf Extract on Performance, Selected Blood Parameters, and Antioxidant Activity in Broiler Diets”. Ankara Üniversitesi Veteriner Fakültesi Dergisi, no. Advanced Online Publication. https://doi.org/10.33988/auvfd.1867391.

EndNote

Hıba NO, Küçükersan S, Öztap Özen G (August 1, 2026) Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets. Ankara Üniversitesi Veteriner Fakültesi Dergisi Advanced Online Publication

IEEE

[1]N. O. Hıba, S. Küçükersan, and G. Öztap Özen, “Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets”, Ankara Univ Vet Fak Derg, no. Advanced Online Publication, Aug. 2026, doi: 10.33988/auvfd.1867391.

ISNAD

Hıba, Najwa Omar - Küçükersan, Seher - Öztap Özen, Gonca. “Effects of Chitosan- and Alginate-Encapsulated Olive Leaf Extract on Performance, Selected Blood Parameters, and Antioxidant Activity in Broiler Diets”. Ankara Üniversitesi Veteriner Fakültesi Dergisi. Advanced Online Publication (August 1, 2026). https://doi.org/10.33988/auvfd.1867391.

JAMA

1.Hıba NO, Küçükersan S, Öztap Özen G. Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets. Ankara Univ Vet Fak Derg. 2026. doi:10.33988/auvfd.1867391.

MLA

Hıba, Najwa Omar, et al. “Effects of Chitosan- and Alginate-Encapsulated Olive Leaf Extract on Performance, Selected Blood Parameters, and Antioxidant Activity in Broiler Diets”. Ankara Üniversitesi Veteriner Fakültesi Dergisi, no. Advanced Online Publication, Aug. 2026, doi:10.33988/auvfd.1867391.

Vancouver

1.Najwa Omar Hıba, Seher Küçükersan, Gonca Öztap Özen. Effects of chitosan- and alginate-encapsulated olive leaf extract on performance, selected blood parameters, and antioxidant activity in broiler diets. Ankara Univ Vet Fak Derg. 2026 Aug. 1;(Advanced Online Publication). doi:10.33988/auvfd.1867391