Effect of different selenium sources on production performance and biochemical parameters of broilers

Abstract

Selenium (Se) is an essential trace element for animal and human. Supplementation of Se usually in livestock diet has been proved as effective element. This study was conducted to investigate the effect of different sources of selenium on growth performance, slaughter performance, immune trait, oxidation resistance, meat quality and selenium content in tissue of broilers to comprehensively evaluate the effect of selenium. A total of 324 1-day-old AA broilers were selected and randomly allocated to three treatments of six replicates with 18 broilers each. The trial period was 42 days and was divided into two periods. Our results showed that effect of different sources of selenium on growth performance, slaughter performance, the immune status, drip loss and flesh had not significant difference (p > 0.05); while the activities of serum glutathione peroxidase (GSH-Px), total superoxide dismutase (T-SOD), the abilities to inhibit hydroxyl radical (OH˙) and total antioxidant capacity (T-AOC) were significantly higher in selenium yeast than sodium selenite groups, and the contents of MDA of selenium yeast groups were significantly lower than that of sodium selenite. This study demonstrated that the different sources of selenium had no obvious effect on production performance of broilers, but significantly influenced the broiler oxidation resistance.

Antioxidant Systems in Poultry Biology: Superoxide Dismutase

“…Positive effects of dietary Se on SOD activities in avian species depend not only on Se concentration, but also on the form of Se used, with organic Se being more effective than sodium selenite. In fact, the activities of serum GSH-Px, SOD and total antioxidant capacity were significantly higher in selenium yeast than sodium selenite-fed chickens [102]. Similarly, dietary Se-Met significantly elevated T-AOC, GPX, T-SOD, CAT activities, contents of GSH and reduced carbonyl protein content in chicken breast muscle [103].…”

Effects of organic, inorganic, and nano-Se on growth performance, antioxidant capacity, cellular and humoral immune responses in broiler chickens exposed to oxidative stress

“…Results of Yoon et al (2007) research suggested that Se retention had an inverse relationship with the concentration of Se supplemented and was influenced by the dietary Se source. Chen et al (2014) showed that by supplementation of organic and inorganic Se the activity of serum glutathione peroxidase, was significantly higher in Se yeast than sodium selenite groups, and the contents of MDA of Se yeast groups were significantly lower than that of sodium selenite. This finding is in line with the present work.…”

Selenium‐enriched Saccharomyces cerevisiae improves growth, antioxidant status and selenoprotein gene expression in Arbor Acres broilers

“…In general, GP X and SOD activities are the main components of the antioxidant enzyme system, while T‐AOC is commonly maintained by non‐enzymatic and enzymatic antioxidant systems, and MDA is the oxidative stress end product that serves as an index of the antioxidant status (Wang and Xu, ; Placha et al., ; Chen et al., ). Our results indicated that SSC supplementation, especially at the 0.5 mg/kg dose, increased the GP X activity, SOD activity and T‐AOC and decreased the MDA content in plasma and liver.…”

“…Chen et al. () reported that GPx, SOD and T‐AOC were significantly higher in broilers after Se‐yeast supplementation, compared with SS supplementation. This discrepancy is probably due to the Se source, the Se concentration and the lengths of the experiments.…”