To cite this paper: Erwan E, Afriadi, Rodiallah M, Irfan I, and Ibrah W (2023). Effects of Supplementation of Saviotan Feed (Chestnut Tannin) on Blood Parameters and Yolk Cholesterol Concentration in Japanese Quails (Coturnix japonica). J. World Poult. Res., 13(3): 317-322. DOI: https://dx.doi.org/10.36380/jwpr.2023.34 317 JWPR Journal of World’ s Poultry Research 2023, Scienceline Publication J. World Poult. Res. 13(3): 317-322, September 25, 2023 Research Paper, PII: S2322455X2300034-13 License: CC BY 4.0 Effects of Supplementation of Saviotan Feed (Chestnut Tannin) on Blood Parameters and Yolk Cholesterol Concentration in Japanese Quails (Coturnix japonica) Edi Erwan 1 * , Afriadi 2 , Muhamad Rodiallah 1 , Isbul Irfan 1 , and Wawi Ibrah 1 1 Department of Animal Science, Faculty of Agriculture and Animal Science, State Islamic University of Sultan Syarif Kasim Riau, Pekanbaru, Riau, Indonesia 2 Research and Development, Cooperation of Eurovet Indonesia, Bogor, Indonesia *Corresponding’s author’s Email: erwan_edi@yahoo.com Received: 06 June 2023 Accepted: 21 July 2023 ABSTRACT Tannins are secondary metabolites and active compounds widely present in plants. Tannins have several properties, such as astringent, antiparasitic, anti-diarrheal, anti-bacterial, and antioxidant. Hence, plants containing tannins are a major study subject for a natural alternative to in-feed antibiotics or antioxidants. The functions of tannin extracted from chestnut wood, namely Saviotan Feed (SF) in poultry, especially in quails, have not yet been fully understood. The current study aimed to examine the effect of SF supplementation on some plasma metabolites, including glucose (GLU), triglyceride (TG), total cholesterol (TCHO) concentration, and yolk cholesterol in quails (Coturnix japonica). A total of 100 unsexed quails were divided into 4 groups, with 25 quails in each group. These quails were then placed into 20 experimental pens, with 5 quails per pen. Each treatment was replicated 5 times, and the quails were fed a commercial rations diet supplemented with different SF doses of 0% (control), 0.1%, 0.2%, and 0.3%. Quails were provided with SF supplementation from 14 to 56 days of age. A sample of 40 plasma and eggs were randomly collected and analyzed for GLU, TG, and TCHO. The results indicated no significant effects of SF on plasma GLU and TG concentration, but a significant effect was found regarding TCHO. Moreover, supplementation of SF from 0.1 to 0.3% significantly decreased TCHO concentration in the yolk. In conclusion, it has been determined that supplementation of SF may play a significant role in decreasing TCHO in yolk eggs in quails. Keywords: Chestnut tannins, Cholesterol, Glucose, Japanese quail, Plasma metabolites, Triglycerides INTRODUCTION Poultry production as a monogastric animal grows continuously to produce meat and eggs (Mohammed Hassan et al., 2020). Quail farming is one of the livestock sectors that efficiently provides quality animal protein (Handarini et al., 2008). Recently, the population of quail farming has developed in Indonesia. Based on the Indonesian Directorate General Livestock and Animal Health (2020), the population of quails in Indonesia was 14,819,755 heads. Subekti and Hastuti (2013) stated that quails can quickly grow and multiply. In about 42 days, quails have been able to produce eggs and can produce three to four offspring within a year. In addition, quails can produce 250-300 eggs with relatively little feed consumption (about 20 g/head/day). Quail eggs are rich in Vitamin A, riboflavin, and thiamine which benefit vision and immunity. In addition, quail eggs could be an alternative to chicken eggs for patients who cannot consume chicken eggs due to ovomucoid (Khalifa and Noseer, 2019). It was reported by the United States Department of Agriculture (2018) that the concentration of cholesterol in quail eggs was higher than that of chicken eggs (844 and 372 mg/ 100g, respectively). Rahmat and Wiradimadja (2011) stated that cholesterol concentration in the blood may directly affect cholesterol concentration in eggs and meat. Hypercholesterolemia could be affected by consuming high cholesterol concentrations of quail eggs (Khalifa and Noseer, 2019). Hence, the effort to decrease DOI: https://dx.doi.org/10.36380/jwpr.2023.34