en موضوع 9 Animal nutrition پژوهشي Research Article <span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="color:black">Abstract</span></span></span></span></b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="color:black"></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Introduction:</span></span></span></span></b><b> </b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">To investigate the comparison effects of <i>Serendipita indica </i>(SI), and lactobacilli spp. probiotic (LP) and autoclaved <i>Serendipita indica </i>(prebiotic) (AS) on performance, biochemical, and, intestinal microbial population parameters.</span></span></span></span><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:1.25pt"></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Purpose:</span></span></span></span></b><b> </b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">The purpose of this investigation is to use the autoclaved Serendipita fungi, with non-autoclaved form and a commercial probiotic (Parsi Lact&reg;) on performance, biochemical, and intestinal microbial population parameters.</span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Materials</span></span></span></span></b><b> </b><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times="">and <span style="letter-spacing:-.05pt">methods:</span> </span></span></span></b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">The experiment was performed with 240 male, one-day-old chicks (Ross 308) were fed completely randomly in 4 experimental groups and 6 replications and in each replication, 10 chickens were fed with corn and soy-based diets, and experimental groups included: group 1: basal diet (without any feed additives), group 2: basal diet with 6% of SI, group 3: basal diet with 6% of&nbsp; autoclaved SI (AS), group 4: basal diet with 2% of LP.</span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Results:</span></span></span></span></b><b>&nbsp; </b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Results showed that the addition of SI and LP caused a significant increased in body weight gain, and the LP group, increased feed intake significantly, and FCR was not significantly different between the control group to other treatments (P<0.05).</span></span></span></span> <b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Conclusion:</span></span></span></span></b><b> </b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Finally, the use of the LP group led to the increased humoral immunity titer of ND, and All experimental groups showed fewer coliforms, e.coli, and salmonella spp. compared with the control group(P<0.05).</span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:115%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="color:black">Keywords</span></span></span></span></b><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="color:black">: Broiler, <i>Lactobacillus</i>, Performance<i>, </i></span></span></span></span><i><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="letter-spacing:-.05pt">Serendipita indica</span></span></span></span></i><span style="font-size:12.0pt"><span style="line-height:115%"><span new="" roman="" style="font-family:" times=""><span style="color:black">.</span></span></span></span></span></span></span><br> &nbsp; Broiler, Lactobacillus, Performance, Serendipita indica. 41 48 http://ijls.yu.ac.ir/browse.php?a_code=A-10-40-1&slc_lang=en&sid=1 Mahdi Hedayati mahvet77@gmail.com 1003194753284600279 1003194753284600279 Yes associate professor maryam safari maryamsafari129@gmail.com 1003194753284600280 1003194753284600280 No graduated student saeed khalaji saeed.khlj@gmail.com 1003194753284600281 1003194753284600281 No associate professor mehdi ghabooli mehdi.ghabooli@gmail.com 1003194753284600282 1003194753284600282 No associate professor