Effects of two supplemental dietary selenium sources (mineral and organic) on broiler performance and drip-loss G. DENIZ*, S.S. GEZEN and I.I. TURKMEN Department of Animal Nutrition and Nutritional Diseases, Faculty of Veterinary Medicine, University of Uludag, 16059-Gorukle, Bursa, TURKEY * Corresponding author : e-mail :
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SUMMARY
RÉSUMÉ
This experiment was conducted to determine the effects of two different supplemental dietary selenium (Se) sources on broiler performance and whole carcass drip-loss. A total of 273 one-day-old male broiler chicks (Avian Farms) were randomly divided into 3 groups of 91 birds each according to the dietary Se supplementation. The first group received no supplemental Se into starter (from the 1st to the 21st days), grower (from the 22nd to the 35th days) and withdrawal (from the 36th to the 42nd days) diets. The second and third groups were fed with the different dietary regimes supplemented with 0.3 ppm mineral Se (Sodium selenite) or organic Se (Se enriched yeast) respectively. Growth performance (body weight, body weight gain, feed intake and feed conversion ratio) were recorded on the 21st and the 42nd days and carcass traits (chilled carcass weight and chilled carcass yield, whole carcass drip-loss) were measured after slaughtering on the 42nd day. Whatever the origin of Se supplementation, no significant effect on body weight, body weight gain and feed intake was observed on days 21 and 42, and chilled carcass weights and their yield were also unaffected at the end of experiment. By contrast, total feed conversion ratio (from the 1st to the 42nd days) was significantly improved and whole carcass drip-loss was significantly reduced in birds receiving 0.3 ppm organic Se in comparison to the other groups (P
