Effect of Tamarindus indica leaf meal in fees on the growth of pathogenic bacteria, intestinal histology, and blood lipid profile in broilers

The purpose of this study was to examine the phytochemicals compound of Tamarindus indica leaf meal (TLM) to the biocontrol of pathogenic bacteria and growth promotion in broilers. In vitro test of Tamarindus leaf inhibition was done using the diffusion well method, by using E. coli as the testing bacteria. The in vivo test were carried out using a completely randomized design by using 240 broilers day-old-chick with homogeneous body weight were randomized into four treatment groups, namely: broilers fed with 0%; 2%; 4%; and 6% TML, as treatment A; B; C; and D, respectively. The results showed that 2-6% TLM supplementation in feed had no significant effect (P>0.05) on broiler performance and intestinal crypto height. The number of E. coli bacteria in broilers Group B, C, and D decreased significantly (P<0.05) compared to group A. Likewise, total cholesterol and LDL levels in the serum of Groups C and D were significantly lower (P<0.05) compared to groups A and B. It can be concluded that the Tamarindus indica leaf meal in feed can not effect broiler performance, but can reduce the amount of E. coli bacteria in the intestine and reduce blood serum cholesterol levels in broilers. Conversely, it can increase the height of broiler intestinal villi. Keyword: Eschericia coli, villi, cholesterol, broilers