Background and Aim: Antibiotic, improves the growth performance of laying hens when used as a feed additive; however, it has been banned in Europe. Furthermore, secondary metabolites used as a substitute for antibiotics are compounds produced by plants. Therefore, this aims to determine the effect of dates water extract (DWE) on the performance of laying hens. This study used dates containing secondary metabolites as a feed additive and substitute for antibiotics. Materials and Methods: A completely randomized design was used, dividing 400 Lohmann brown day old chick into five groups (each group has five replications and each replication consisted of 16 laying hens). Furthermore, there were two control groups such as mineral water control group and antibiotic growth promoters (basal feed+50 mg/kg of bacitracin), and three DWE groups such as 5% DWE (50 mg/mL), 10% DWE (100 mg/mL), and 20% DWE (200 mg/mL). Dates extract treatment was administered through drinking water for 54 days, whereby three laying hens from each replication were taken randomly and decapitated on the neck. Afterwards, a necropsy was performed for histological preparations of the small intestine, ovary, and lymphoid organs. The structure and morphology of the small intestine, and ovaries were observed through histological preparations, while lymphoid organs were observed through histological preparation and morphometry, and body morphometry, body weight, feed intake and weight gain were observed by measurements and weighing. Results: Small intestine morphology, ovarian follicle, and growth performance of the DWE2 group increased significantly compared to the control group, but the lymphoid organs index was influenced by DWE1. Conclusion: The administration of 10% dates extract (100 mg/mL) in drinking water improves the morphology of the small intestine, ovarian follicles, lymphoid organs, and growth performance.

Magelang duck is the Indonesian wild duck that have high egg and meat production. To increase egg production hence in this research magelang ducks are supplemented with curcumin and exposure of white and red light. The aim of the research to study growth beak duckling from parental magelang ducks that supplemented curcumin and red light exposure. The research design used complete randomized design from fourdifferents group of ducks, i.e., A0B0 (duck without curcumin and white light exposure), A0B1 (duck without curcumin and red light exposure), A0B1 (curcumin dose of 18 mg/duck/day and white light exposure and A1B1 (curcumin dose 18 mg/duck/day and red light exposure). Five female ducklings were taken from each group and their morphometry were measured. The variables of this research were the length, width and height of beaks. The collected data were analized with Kruskal-Wallis non parametric test and would be further tested with Mann-Whitney-U test. The result of this research showed that curcumin supplementaion and red light exposure in ducks affected the magelang ducklings beak growth.Keywords : beaks, curcumin, growth, magelang ducks, red light. ABSTRAKItik magelang merupakan itik liar asli Indonesia yang memiliki produksi telur dan daging relatif tinggi. Untuk meningkatkan produksi telur maka pada penelitian ini itik magelang diberi suplementasi kurkumin serta pajanan cahaya putih dan merah. Penelitian ini bertujuan untuk mengkaji pengaruh pemberian kurkumin serta cahaya putih dan merah pada induk terhadap pertumbuhan paruh anak itik magelang. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) yang berasal dari empat induk yang berbeda, yaitu induk A0B0 (tanpa diberi kurkumin dan dipapar cahaya putih), A0B1 (tanpa diberi kurkumin dan dipapar cahaya merah), A1B0 (dosis kurkumin 18 mg/ekor/hari dan paparan cahaya putih) dan A1B1 (dosis

Itik magelang merupakan itik lokal yang memiliki prosentase produksi telur  mencapai 80% pada pemeliharaan intensif, untuk meningkatkan produksi telur maka pada penelitian ini itik magelang diberi suplementasi kurkumin serta pajanan cahaya putih dan merah. Penelitian ini bertujuan untuk mengkaji pengaruh pemberian kurkumin serta cahaya putih dan merah pada induk terhadap pertumbuhan anak itik magelang. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) yang berasal dari 4 induk yang berbeda, yaitu induk A0B0 (kurkumin 0 mg dan cahaya putih),  A0B1 (kurkumin 0 mg dan  cahaya merah), A1B0 (kurkumin 18 mg dan cahaya putih) dan A1B1 (kurkumin 18 mg dan cahaya merah). Masing-masing kelompok induk diambil 5 anak itik betina untuk diukur morfometrinya. Variabel yang diamati berupa morfometri yang terdiri dari pengukuran panjang badan, panjang sayap, dan panjang kaki. Data yang diperoleh dianalisis menggunakan uji non parametrik Kruskal Wallis dan diuji lanjut menggunakan uji Mann Whitney-U. Hasil penelitian ini menunjukkan bahwa suplementasi kurkumin dan pajanan cahaya putih serta merah pada induk secara umum dapat mempengaruhi pertumbuhan anak itik magelang.