Efficacy of Bactocell® and Toyocerin® as Probiotics on Growth Performance, Blood Parameters and Intestinal Morphometry of Turkey Poults

A feeding trial was conducted to investigate the efficacy of Pediococcus acidlactici (Bactocell®) or Baccil-lus cereus (Toyocerin®)-based probiotics on turkey’s performance, carcass yield, blood parameters and intestinal morphology. A total of 240 1- day-old male Nicholas turkey poults were allocated into three dietary groups with four replicates. A corn-soybean-based diet was used as a basal diet. The dietary groups were 1) control (basal diet), 2) basal diet plus Bactocell® (1×10^9 cfu of Pediococcus acidilactici/g of the diet) 3) basal diet plus Toyocerin® (1×10^9 cfu of Bacillus cereus/g of the diet). Poults assigned in a normal condition from 1 to 84 days of age. Birds raised on floored pen and in an environmentally controlled house. Birds given ad libitum access to water and diet. Poults weighted at every week by pen basis to determine average body weight. Feed intake per pen recorded at the same age and feed conversion ratio calculated for whole period. Eight birds per treatment randomly selected to measure the serum cholesterol, triglyceride, heterophil, lymphocyte levels and histomorphological measurements of small intestine on day 84. The result of this study shown that there was not a significant association between added probiotics to feed and weight growth, feed conversion ratio, cholesterol, triglyceride, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) levels (P 0.05). There was a significant result of decrease epithelium thickness, increase villus height and increase cell area of Goblet (P 0.05). Birds fed diet supplemented with probiotics also had lower (P 0.05) Coliforms number of the ileum than that of the control. It could be concluded that under the condition of the current study, the probiotic affected small intestinal morphology of turkey poults significantly, but inclusion of these probiotics at the recommended dose (1 g/kg in diet) has no adverse effect on blood parameters and performance of turkey poults. The key points of using probiotics are in main-taining gastrointestinal health and resistance to pathogens and prevent digestive disorders that may express.