The purpose of this research was to know the effect of breadfruit leaves flour in feed to blood profile and correlation between cholesterol, HDL and LDL of blood with meat cholesterol of maleTegal duck of 10 weeks old. The material used was Day Old Duck of male Tegal duck  as much as 120 heads with experimental research methods and Completely Randomized Design (CRD). There were 6 treatments: feed without breadfruit leaf powder, feed + breadfruit flour 3% / kg feed, feed + breadfruit flour 6% / kg feed, feed + breadfruit flour 9% / kg feed, feed + flour breadfruit 12% / kg feed, and feed + breadfruit flour 15% / kg feed. Each treatment was repeated 5 times and each replication consisted of 4 ducks. The variables observed were the number of red blood cells, white blood cells, HDL, LDL, blood triglycerides, correlation between cholesterol, HDL and LDL blood with meat cholesterol of male Tegal duck of 10 weeks old.  The result of the analysis showed that the supplementation of breadfruit leaves has significant effect (P <0,05) on the number of red blood cells, white blood cells, HDL, and blood triglyceride. There is a positive correlation between blood cholesterol with duck meat cholesterol which given breadfruit leaf powder. This research can be concluded that the supplementation of breadfruit leaf powder (Artocarpus altilis) can increase the number of red blood cells, white blood cells, blood HDL level but lowers blood cholesterol and triglyceride blood of male Tegal duck of 10 weeks old. Cholesterol meat is affected by blood cholesterol with regression coefficient of 0.780941, influenced by LDL (r = 0.407849), but negatively affected by HDL (r = -0.47022).

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Assorted feed additives for broiler chickens, including prohibited antibiotics, are widely sold in the market. The objective of incorporating supplement in feed is to improve broilers’ performance and meat quality. This study conducted an experiment to 60 DOC broilers from each Cobb and Lohmann strains. The experiment was conducted in a 2x4 factorial CRD. The treatments were feed additives, i.e. antibiotics, probiotics, acidifiers and phytobiotics. Each treatment was repeated 3 times. The measured variables were carcass and non-carcass percentage as well as physical quality of broiler meat. Analysis of variance showed that feed additives did not significantly affect (P>0.05) carcass and non-carcass percentage and meat physical quality of the two broiler strains. Conclusively, probiotics, acidifiers and phytobiotics are the potential alternatives as a substitute for antibiotics for Cobb and Lohmann broiler chickens as reflected from the carcass percentage and meat quality.

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Penelitian bertujuan untuk mengetahui pengaruh pemberian feed additive sebagai pengganti antibiotik terhadap bobot relatif hati dan ginjal ayam broiler. Materi yang digunakan dalam penelitian yaitu ayam broiler strain Lohmann 202 umur 1 hari yang berjumlah 120 ekor, pakan komersial, bahan aditif pakan yang digunakan berupa antibiotik, probiotik, acidifier, dan fitobiotik. Percobaan menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakukan dan 6 kali ulangan dengan masing-masing unit percobaan terdiri dari 5 ekor. Perlakuan terdiri dari P0 (pakan dengan penambahan antibiotik olaquindox 0,125%), P1 (pakan dengan penambahan probiotik promix 0,2%), P2 (pakan dengan penambahan acidifier acidtec – 401 1%), dan P3 (pakan dengan penambahan tepung bawang putih 0,04 %, kunyit dan jahe masing masing 0,8 %). Hasil analisis variansi menunjukkan bahwa pemberian feed additive dalam pakan tidak berpengaruh nyata (P>0,05) terhadap bobot relatif hati dan ginjal. Rataan bobot relatif hati yaitu R0 = 1,505 ± 0,070 %, R1 = 1,512 ± 0,111 %, R2 = 1,572 ± 0,208 %, dan R3 = 1,452 ± 0,157 %. Rataan bobot relatif ginjal yaitu R0 = 0,825 ± 0,117 %, R1 = 0,817 ± 0,172 %, R2 = 0,817 ± 0,172 %, dan R3 = 0,770 ± 0,080 %. Kesimpulan penelitian menunjukkan bahwa pemberian feed additive dalam pakan mampu menggantikan peran antibiotik untuk mengoptimalkan bobot relatif hati dan ginjal ayam broiler.