Abstract
This work aimed to assess how Portulaca oleracea extract (POE) affected Japanese quail's growth, carcass features, blood parameters, digestibility coefficients, and microbiological aspects. A total of two hundred twenty-five 7-days-old Japanese quails were allotted into 5 experimental groups. Birds were divided as follows: group 1) received only the base diet (control), while groups 2, 3, 4, and 5 received the basal feed supplied with 1.0, 2.0, 3.0, and 4.0 mL POE/kg diet, respectively. The findings cleared those quails’ fed diets supplemented with POE had significantly (P > 0.01) higher body weight (BW) and body weight growth (BWG) than the control group. The treatment with POE significantly affected digestive enzymes (amylase and lipase) and digestion coefficients for ether extract (EE). The treated groups had decreased serum urea and malonaldehyde (MDA) and increased Immunoglobulin G (IgG), Immunoglobulin M (IgM), superoxide dismutase (SOD), total antioxidant capacity (TAC), glutathione (GSH), and catalase (CAT) concentrations than the control. All bacterial counts in dietary cecal samples declined with increasing POE levels. In conclusion, POE supplementation improved quails’ performance and nutrient digestibility. Moreover, POE did not harm birds' liver and kidney functions. In addition, this extract promoted the immunity and antioxidant status and minimized the harmful microbial load in quails' intestines, the total bacterial count was decreased by 90% in diet samples supplemented with purslane addition level (4 mL/g), while decreased by 74% in cecal samples supplemented with purslane addition level (4 mL/g) and Salmonella don't appear in all addition levels. However, lactic acid bacteria increased by 70%, indicating beneficial of POE in reducing the pathogenic microorganisms.
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