Effects of dietary Selenomethionine supplementation on growth performance,antioxidant status,plasma selenium concentration,and immune function in weaning pigs |
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| Abstract: | Background:This study was designed to evaluate the efficacy of DL-selenomethionine(DL-SeMet) supplementation on growth performance,antioxidant status,plasma selenium(Se) concentration,and immune function of weaning pigs.216 weaning pigs were randomly allocated to 6 treatments with 6 replicates each according to a complete randomized block design.Each replicate had six pigs.Diet of group one was corn-soybean basal diet without any additional Se supplement.Group 2 was supplemented with 0.3 mg/kg of Se from sodium selenite.Groups 3-6 were supplemented with 0.1,0.3,0.5,and 0.7 mg/kg of Se from DL-SeMet,respectively.The trial lasted for 42 days.Results:Pigs supplemented with 0.3 and 0.7 mg/kg DL-SeMet obtained better feed gain ratio(P 0.05).The best antioxidant ability(serum,liver,and muscle) was shown in 0.1-0.3 mg/kg DL-SeMet groups(P 0.05).The plasma Se concentration increased as the dietary DL-SeMet level elevated.The immunity among groups was not affected.Conclusions:DL-SeMet supplementation in the diet significantly improved the growth performance,antioxidant ability and plasma Se content of weaning pigs.DL-SeMet can replace sodium selenite in the diet of weaning pigs. |
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