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Selenium‐enriched garlic and cabbages increase hepatic glutathione peroxidase activity of broiler chickens

This study was to determine the selenium (Se) availability from Se enriched garlic and cabbages to broiler chickens. Se enriched garlic and cabbages were produced (18.5 and 101.5 ppm Se, respectively). Conventional and Se enriched garlic and cabbages were supplemented in the diets depending on the dietary treatments. One hundred broiler chickens at d 1 of age were allotted to 4 treatments: NC (Cabbage + Garlic); PC (Cabbage + Garlic + SeMet, 0.5 ppm added Se); GS (Cabbage + Se‐enriched garlic, 0.5 ppm added Se) and CS (Garlic + Se‐enriched cabbage, 0.5 ppm added Se). Birds were fed the diets for 4 wks and killed for sampling tissues and blood. All the excreta were collected. Weight gain and feed intake were also measured weekly. Activities of hepatic and plasma glutathione peroxidase (GPx) were also measured. Hepatic Se contents of the PC, CS, and GS were higher (P<0.05) than the NC. Plasma GPx activity of the PC tended to be higher (P=0.077) than the NC. However, plasma GPx activities of the CS and GS were not different (P=0.138) from the NC and the PC. Hepatic GPx activities of the PC, CS, and GS were higher (P=0.046) than the NC. Bio‐availabilities of Se from PC (65.2%), CS (61.2%), and GS (70.7%) by broilers did not differ (P=0.861). This study indicates that the Se from Se‐enriched garlic and cabbage are highly bio‐available and can potentially be beneficial by enhancing liver GPx activity.