01770nas a2200217   4500000000100000000000100001008004100002260004400043653001200087653002100099653002300120653002700143100001300170700001500183700001400198245025700212300001200469490000800481520104900489022001401538       2009                            d  c06/2009bM. & H. Schaper GmbHaHannover10aBroiler10aorganic selenium10ainorganic selenium10aglutathione peroxidase1 aM Salman1 aÖ Muglali1 aZ Selçuk00aInvestigations into effects on performance and glutathione peroxidase activity in broilers when increasing selenium contents of complete diets appropriate to animals’ selenium requirements by adding different selenium compounds (organic vs. inorganic)  a233-2370 v1163 aThe aim of this study was to compare the effects of inorganic and organic seleniumcompounds supplementations to diets containing adequate selenium inbroilers on performance, carcass traits, plasma and tissue glutathione peroxidaseactivity. A total of 150 one-day old broilers were randomized into one control andtwo treatment groups each containing 50 birds; each group was then dividedinto 3 replicate groups. The experiment lasted 42 days. All groups were fed withbroiler starter diet from day 1 to 21 and finisher diet from day 22 to 42. The basaldiet for control group included adequate selenium due to vitamin-mineral premixand feeds. The basal diet was supplemented with 0.2 mg/kg organic selenium(selenomethionine, treatment group 1) and 0.2 mg/kg inorganic selenium(sodium selenite, treatment group 2). Although no significant differences weredetermined between treatment group 1 and the control group for mean bodyweights, the differences between the group given inorganic selenium and theother groups were statistically significant (p  a0341-6593