%A Agustina Jahara Juli %T PENGARUH PEMBERIAN ACIDIFIER CUKA APEL MELALUI AIR MINUM TERHADAP PERFORMA AYAM ULU %X Penelitian ini bertujuan untuk mengetahui pengaruh pemberian acidifier cuka apel melalui air minum sebagai feed additive terhadap performa ayam ULU. Penelitian ini dilaksanakan pada November 2023--Januari 2024 di kandang Open House Jurusan Peternakan, Fakultas Pertanian, Universitas Lampung. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 5 ulangan serta setiap satuan percobaan terdiri atas 10 ekor ayam ULU sehingga total ayam yang digunakan sebanyak 200 ekor. Perlakuan dimulai saat ayam berumur 7 hari, perlakuan yang diberikan terdiri dari P0 : ransum komersil BR-11 (kontrol), P1 : ransum komersil BR-11 + penambahan acidifier cuka apel 0,25%, P2 : ransum komersil BR-11 + penambahan acidifier cuka apel 0,5%, P3 : ransum komersil BR-11 + penambahan acidifier cuka apel 0,75%. Data dianalisis menggunakan analisis ragam dengan taraf nyata 5% apabila perlakuan berpengaruh nyata (P<0,05) maka dilanjut dengan uji BNT. Hasil penelitian menunjukkan bahwa pemberian cuka apel tidak berpengaruh nyata (P>0,05) terhadap konsumsi ransum, pertambahan berat tubuh, dan konversi ransum sehingga belum terdapat level pemberian cuka apel yang terbaik. Kata kunci: Acidifier, Ayam ULU, dan Performa 3 ABSTRACT THE EFFECT OF ADMINISTERING APPLE VINEGAR ACIDIFIER THROUGH DRINKING WATER ON THE PERFORMANCE OF ULU CHICKENS By Juli Agustina Jahara This research aims to determine the effect of giving apple vinegar acidifier through drinking water as a feed additive on the performance of ULU chickens. This research was carried out in November 2023--January 2024 in the Open House enclosure of the Animal Husbandry Department, Faculty of Agriculture, University of Lampung. This research used a Completely Randomized Design (CRD) with 4 treatments and 5 replications and each experimental unit consisted of 10 ULU chickens so that the total used was 200 chickens. Treatment started when the chickens were 7 days old, the treatment given consisted of P0: commercial ration BR-11 (control), P1: commercial ration BR-11 + addition of 0.25% apple vinegar acidifier, P2: commercial ration BR-11 + addition acidifier apple vinegar 0.5%, P3: commercial ration BR-11 + addition of acidifier apple vinegar 0.75%. Data were analyzed by using analysis of variance with a significance level of 5%, if the treatment had a real effect (P<0.05), then continued with the BNT test. The results of the study showed that giving apple cider vinegar did not have a significant effect (P>0.05) on ration consumption, weight gain and ration conversion so that there was no best level of giving apple cider vinegar. Keywords: Acidifier, ULU Chicken, and Performance %C UNIVERSITAS LAMPUNG %D 2024 %I FAKULTAS PERTANIAN %L eprints83421