Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan campuran limbah roti dan tepung jerami bawang putih sebagai pengganti jagung dalam ransum terhadap penampilan dan jumlah lemak abdomen itik bali jantan umur 2-8 minggu. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan empat perlakuan dan enam kali ulangan. Tiap ulangan menggunakan lima ekor itik Bali jantan umur dua minggu dengan berat badan homogen. Ransum yang diberikan disusun dengan kandungan protein kasar 18% dan energi termetabolis 2900 kkal/kg yang mengandung 50% jagung kuning sebagai kontrol (A). Penggantian masing-masing: 30%, 60%, dan 100% penggunaan jagung kuning dalam ransum dengan campuran limbah roti dan tepung jerami bawang putih (LRBP), masing-masing sebagai perlakuan B, C, dan D. Ransum dan air minum diberikan secara ad libitum.Variabel yang diamati adalah konsumsi ransum, konsumsi zat makanan, berat badan akhir, pertambahan berat badan, Feed Conversion Ratio (FCR) dan lemak abdomen. Hasil penelitian menunjukkan bahwa konsumsi ransum, berat badan akhir, pertambahan berat badan dan efisiensi penggunaan ransum pada itik perlakuan B, C, dan D nyata (P<0,05) lebih tinggi daripada kontrol (A). Akan tetapi jumlah lemak abdomen nyata (P<0,05) lebih rendah daripada kontrol. Dapat disimpulkan bahwa penggantian 100% jagung kuning dalam ransum dengan campuran limbah roti dan tepung jerami bawang putih (LBRP) dapat meningkatkan penampilan dan menurunkan lemak abdomen itik bali jantan umur 2–8 minggu.

The community of Gelebak Dalam Village, Rambutan Sub-district, Banyuasin Regency is a village rich in plants and livestock, including rice, vegetables and fruits as well as chickens, cows, goats, ducks. All of them are sources of agricultural waste that can be used as organic fertilizer. The processed organic fertilizers can be used for rice, vegetables and fruit crops, reduce organic agricultural agricultural waste which can improve land to become more fertile and quality in the resulting production (improve the quality in terms of taste) and can very clearly reduce the use of chemical fertilizers. This counseling was carried out from July 2022 to August 2022 for the people of Gelebak Dalam Village The methods used included counseling, demonstration of making organic fertilizers and mentoring until organic fertilizers were successfully made. The aim of this counseling is that it is hoped that the community can utilize agricultural waste to be processed into organic fertilizer. The hope that the Village community will process agricultural waste into organic fertilizer is very large with successive questions arising and will enthusiastically try to apply it to their own rice fields and gardens. The results achieved are that farmers have succeeded in making organic fertilizer from agricultural waste in the village of Gelebak Dalam.

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