Bu çalışma 32 haftalık yaşta toplam 320 adel Babcock·B-380 kahverengi yumurtacı tavuk kullanılarak yürülOldO. DM gruba ayrılan tavukların rasyonlarına % O. 1.5.2.5 ve 3.5 düzeylerinde ilave edilen zeolitin (Clinut-l000) günlük yem tuketimi. yemden yarananma oranı, yumurta a Jırlığl, hasanı yumuna miktarı ve spesifik graviıe üzerine etkileri be­lirlendi. Deneme 90 gOn surduruldO. Deneme sonunda yumurta verimleri sırasıyla % 90.76, 92,10, 91,62 ve 90.61 ola­rak bulundu (P>O.05). GunlOk yem ıoketimleri sırasıyla 135.44, 135.12, 129.09 ve 129.25 g olarak tespil edildi (P>O.OS). Bir kg yumurta verimi için tüketilen yem mikları % 3.5 leolit içeren rasyonla beslenen grupta en dOşük (2.29 kg) olur1O.OS). Yumurta ağırlığı ve spesifik gravite bakımından gruplar arasında istatistiksel farklılık gözlenmemiştir (P>O.OS). Deneme ortasında en yuksek hasarlı yumurta oranı (% 1.31) kontrol grubundan elde edilir1

At presenı study 320 Babcock-B-380 brown hens aged 32 week were used. This experiment was carried oul to delermine eHects ol leeding laying diets supplemenled with dillerent lavels ol Clinut-looo (O, 1.5,2.5 and 3.5%) on their leed intake, leed ellieieney, egg production. egg weight, damagad egg raıio and specific gravity. The ex­periment was lasted in 90 days. At the end of Ihe experiment egg production was found lo be 90.76, 92.10, 91.62 and 90.61 %, respectively (P>0.OO5). Feed intake was observed lo be 135.44, 135.12, 129.09 and 129.25 g, respectively (P>0.05). While the towest feed ellicianey (2.29) was obtained in the group led 3.S % zeolit, the higheSI feed effieiency (2.40) was oblained in the group feed O % leolit (P>O.OS). There were no dillerences between the groups in terms of e99 weight and specific gravily (P>0.05). Middle of the experiment. while the lowest ralio for damaged e99(I%) was obıained in Ihe group led 1.5 % leolit-l 000, the highesl ratio for damaged egg (1.31 %) was oblained in the group led O % leolit AI Ihe end ol Ihe experiment, raıio ol damaged egg was delermined lo be 0.94, 0.78, 1.19 and 1.05 %, res­peclivety. Consequently, use of levels of 2.5 and 3.5 % leolit in poultry diels was concluded to effect on feed con­version in a positive manner due lo reduced leed intake without any reduction on egg production although differences showed no significance