Akademik Veri Yönetim Sistemi
Archiv fur Geflugelkunde, cilt.64, sa.3, ss.134-138, 2000 (SCI-Expanded, Scopus)
This experiment was conducted using male broiler chicks to determine the effects of competitive exclusion and/or Zn bacitracin on performance, intestinal pH, fecal dry matter and feed digestibility. Day-old chicks were divided into four treatments with 60 broilers in each group. The groups are control, Zn bacitracin, Broilact® and Broilact® with Zn bacitracin. The basal diets were manufactured under commercial conditions as one batch, divided into respective parts then supplemented with the Zn bacitracin (100 mg/kg). The CE product Broilact® was diluted in drinking water that was given 1 mg per day old chick by oral administration. Body weight gain and feed consumption were monitored weekly. In experiment 5 broilers per group (20 broilers per treatment) were selected, at the age of 9 to 15 d and 29 to 35 d, faces was collected from the plates or plastic covers placed under the cages. In study 5 broilers per group were killed 15 d and 35 d of age and then the intestinal contents were collected for pH value. The Broilact® improved on the broilers growth rate performance improvemently, although the difference was not significant. Broilact® treatments increased the fecal dry matter content but the difference was not significant. The pH of the ileum and ceca at 15 d of age in the two Broilact® treatments were significantly higher than the other groups (P < 0.05). At the end of the experiment, total digestibility at 35 d of age in the group treated with only Broilact< was significantly higher than the other groups (P < 0.05).