Effect of different levels of garlic (Allium sativum) aqueous extract in drinking water on performance, blood lipids and intestinal microflora of Japanese quail

Document Type : Research Paper


1 Graduated MSc student, Department of Animal Science, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran

2 Associate Professor, Department of Animal Science, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran

3 Assistant Professor, Department of Animal Science, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran


The effects of garlic (Allium sativum) aqueous extract in drinking water were studied on performance, blood lipids and intestinal microflora using 280 Japanese quails in a completely randomized design with 5 treatments, 4 replicates and 14 birds per replicate. The treatments included 0, 0.5, 1, 1.5 and 2 mL garlic aqueous extract per litre of drinking water, respectively. On day 42, two birds per replicate were randomly selected and after sampling from ileum for determining the microflora populations, their carcasses were decomposed. Blood samples were collected on day 42 (one male and one female) and after separating the serum, triglycerides, total cholesterol, HDL  and  LDL were measured. The results indicated that consumption of garlic aqueous extract in drinking water had no significant effect on feed intake, daily gain, feed conversion ratio, weight of carcass, internal organs (P>0.05). Treatments had no significant effect on relative length of the small intestine segments including duodenum, jejunum and ileum, and serum lipids  (P>0.05). The different levels of garlic extract had no effect on Lactodacillus and Coliform populations of ileum segment. Number of E.coli colony (CFU/g)in quails that received 2 mL extract (5.83) was lower (P<0.05) than the control group (5.95). It is concluded that the applied levels of garlic aqueous extract had no effect on the studied parameters in Japanese quail, however 2 mL extract reduced E.coli populations.


Main Subjects

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