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Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2026 / Volume: 67 Issue: 3

The effects of dietary eggshell with membrane and olive leaf extract supplementation on performance, carcass characteristics and some biochemical parameters of quails exposed to heat stress

Zeki Erişir(Fırat University, Faculty of Veterinary Medicine, Department of Animal Science)0000-0003-0420-023X
Mehtap Özçelik(Fırat University, Vocational School of Health Services)0000-0003-2362-4935
Mehmet Ali Azman(Balıkesir University, Faculty of Veterinary Medicine, Department of Animal Nutrition and Nutritional Diseases)0000-0001-9281-9520
Seda İflazoğlu Mutlu(Fırat University, Faculty of Veterinary Medicine, Department of Animal Nutrition and Nutritional Diseases)0000-0002-6835-2171
Ülkü Gülcihan Şimşek(Fırat University, Faculty of Veterinary Medicine, Department of Animal Science)0000-0003-2871-3005
Yasin Baykalır(Fırat University, Faculty of Veterinary Medicine, Department of Animal Science)0000-0002-9248-6065
Selcen Arslan(Republic of Turkey Ministry of Agriculture and Forestry Elazığ Directorate of Provincial Agriculture and Forestry)0000-0001-9910-6187
Mehmet Eroğlu(Agriculture and Rural Development Support Institution)0000-0001-9471-6410
Gonca Ozan Kocamüftüoğlu(Mehmet Akif Ersoy University, Faculty of Veterinary Medicine, Department of Biochemistry)0000-0001-6874-3669
Mehmet Çiftçi(Fırat University, Faculty of Veterinary Medicine, Department of Animal Nutrition and Nutritional Diseases,)0000-0002-3009-8710
Pages
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Publication Date
2020-06-03
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Consequently, the addition of ESM and OLE to the diets positively affected daily body weight gain, serum triglyceride, liver, and heart tissue MDA levels in the quails exposed to heat stress.

📌 3 Key Takeaways

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Objective & Hypothesis:This study was conducted to investigate the effects of eggshells with membrane (ESM), the eggshells with membrane that had absorbed olive leaf extract (ESM+OLE) and olive leaf extract (OLE) additives on the performance, immunity, and oxidant-antioxidant metabolism of Japanese quails exposed to heat stress.
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Key Findings & Data:In the experiment, a total of 128 fifteen-day-old quails were divided into 4 groups with 4 replicates.
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Conclusion & Impact:Consequently, the addition of ESM and OLE to the diets positively affected daily body weight gain, serum triglyceride, liver, and heart tissue MDA levels in the quails exposed to heat stress.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:biochemical parameters · egg shell with membrane · olive leaf extract

Abstract

This study was conducted to investigate the effects of eggshells with membrane (ESM), the eggshells with membrane that had absorbed olive leaf extract (ESM+OLE) and olive leaf extract (OLE) additives on the performance, immunity, and oxidant-antioxidant metabolism of Japanese quails exposed to heat stress. In the experiment, a total of 128 fifteen-day-old quails were divided into 4 groups with 4 replicates. The control group was fed with a maize-soybean based basal diet; the ESM group was fed with a basal diet supplemented with 2% ESM; the ESM+OLE group was fed with a basal diet consisting of 2% ESM and 200 ppm olive leaf extract and the OLE group was fed with a basal diet supplemented with 200 ppm olive leaf extract. At the end of the study, carcass characteristics and blood parameters were determined. The highest daily body weight gain and the lowest feed conversion ratio were observed in the OLE group (P<0.05). OLE was added into feed, MDA levels in the liver and heart decreased significantly (P<0.001), whereas, GSH-Px and SOD activities in both tissues alongside the GSH levels in the heart increased significantly (P<0.001). The ESM was found to significantly reduce liver MDA levels (P<0.001), and increase GSH-Px activity in both tissues, along with SOD activity and GSH levels in the heart (P<0.001). Consequently, the addition of ESM and OLE to the diets positively affected daily body weight gain, serum triglyceride, liver, and heart tissue MDA levels in the quails exposed to heat stress.

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Cite This Article

Erişir, Z., Özçelik, M., Azman, M. A., Mutlu, S. İ., Şimşek, Ü. G., Baykalır, Y., Arslan, S., Eroğlu, M., Kocamüftüoğlu, G. O., Çiftçi, M. (2020). The effects of dietary eggshell with membrane and olive leaf extract supplementation on performance, carcass characteristics and some biochemical parameters of quails exposed to heat stress. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Volume: 67 Issue: 3. https://doi.org/10.33988/auvfd.622127

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