https://jap.fapet.unsoed.ac.id/index.php/JAP Faculty of Animal Science, Jenderal Soedirman University in associate with the Animal Scientist Society of Indonesia (ISPI) and the Indonesian Association of Nutrition and Feed Science (AINI) en-US ANIMAL PRODUCTION 1411-2027 <p>Submission of a manuscript implies that the work described has not been published before or is under consideration for publication elsewhere (except in the form of an abstract). When the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.</p> https://jap.fapet.unsoed.ac.id/index.php/JAP/article/view/317 <p class="p1">Local feeds have the potential to be used as feed ingredients in poultry diets. This study was to evaluate</p> <p class="p1">the effects of local diets supplemented with ginger and turmeric meal and to compare with commercial broiler</p> <p class="p1">feeds. In total, 180 one-day-old broilers were assigned to 36 pens and kept for 5-7 weeks. The birds were fed</p> <p class="p1">experimental diets as follows control group (R1), the birds were fed as commercial diets, experimental diets</p> <p class="p1">were: local feed + 2% ginger (R2), local feed + 2% turmeric (R3), local feed + 1% ginger + 1% turmeric (R4) and</p> <p class="p1">slaughter age treatments: 5 weeks (P1), 6 weeks (P2), 7 weeks (P3) with 3 replicates. The results revealed no</p> <p class="p1">significant interaction between diet type and slaughter age. The inclusion of ginger and turmeric meal in local</p> <p class="p1">diets resulted in a significant (P&lt;0.05) enhancement of immunity, evidenced by increased sizes of immune</p> <p class="p1">organs, ventriculus, small intestine, and caecum compared to commercial diets. However, these dietary</p> <p class="p1">treatments significantly reduced rectal temperature and respiration rate. Differences in the slaughter age of</p> <p class="p1">chicken (5, 6, and 7 weeks) were significantly increased rectal temperature and respiration rate but significantly</p> <p class="p1">decreased immune organ sizes and visceral organs weights. This study concludes that the inclusion of 1% ginger</p> <p class="p1">and 1% turmeric meal in local diets (R4) offers a more efficient formulation, as it utilizes lower levels of additives</p> <p class="p1">while still yielding favourable outcomes. This dietary strategy enhanced immune organ development and</p> <p class="p1">visceral organ weights in broiler chickens, despite the general trend of increasing age being associated with</p> <p class="p1">elevated rectal temperature and respiration rate. Furthermore, based on physiological, immunological, and</p> <p class="p1">visceral organ parameters, the optimal slaughter age for broiler chickens fed local diets supplemented with</p> <p class="p1">ginger and turmeric meal (R2, R3, and R4) was determined to be 5 weeks (P1)</p> Selvvy Mozin Hafsah Muhammad Tahir Andi Pertiwi Damayanti Muhammad Teguh Sayekti Handayani Ririn Sriwasti Copyright (c) 2026 ANIMAL PRODUCTION https://creativecommons.org/licenses/by-sa/4.0 2026-04-08 2026-04-08 1 6 10.20884/1.jap.2026.28.1.317