| Abstrak/Abstract |
ABSTRACT
The oral application of probiotics in the poultry industry is time-consuming and laborious.
Therefore, using a powdered probiotic supplement that can easily mix with feed is important. We in-
vestigated the effect of spray drying encapsulation on the viability of indigenous probiotic lactic acid
bacteria during production and storage and evaluated broiler chicken performance after providing
the supplement. Encapsulated probiotics exhibited >80% survival rates after spray drying. All bacte-
rial species maintained up to 80% cell viability rates after exposure to 80–85°C temperatures for 15 or
30 s. The viable cell number of all encapsulated bacteria decreased over seven weeks of storage. The
supplement was mixed with feed at concentrations 0.5 (T1), 1.0 (T2), and 1.5 (T3) g/kg feed and adminis-
tered to 48 one-day-old Lohmann broiler chickens for 21 days; a T0 group was raised without probiotic
supplementation. Probiotic supplementation affected body weight gain, live weight, and feed con-
version ratio. The cecum length and duodenum and cecum weights significantly differed among the
treatment groups. Probiotic supplementation was associated with improved villus development in the
intestinal epithelium compared with that of the control. Thus, feed supplementation with indigenous
probiotic powder stimulates intestinal epithelial proliferation in broiler chickens during the starter
phase, improving their performance. |
