Effect of ethanolic extract of cashew leaf (Anacardium occidentale L.) in the feed on the weight gain and immunity were investigated on Jawa Super Chicken. Ninety chicken were divided into 6 groups those were basal feed group and 5 different concentration of chasew leaf extract groups. Experiment was conducted for 16 days started by 2 days acclimatization after hatching. Body weight was measured every 3 days starting from 0th day. On 16th day, the chicken were sacrificed, spleen and bursa of Fabricius were collected to quantify some histological parameters such as white pulp and follicle area as well as follicle thickness of those organs. The data were analyzed by regression and one way ANOVA followed by Tuckey test. Histological analysis was performed using optilab and Image Raster software. The results showed that growth and development of immune system of chicken increased significantly as could be seen in body weight, organs weight and index, as well as histological parameters. The regression results showed that spleen and bursa of Fabricius weight influenced increasing of body weight by 64.2% and 38.4% respectively. It could be concluded that biosupplementation of cashew leaf extract in basal feed could increase growth and immunity of Jawa Super Chicken.

The main factor that must be considered in achieving the success of the broiler industry is feed. Processed peanuts from home industries produce waste material in the form of peanut hulls. This study aims to determine the effect of peanut hulls supplementation (PHS) on feed on the histological structure of the Pectoralis thoracicus (PT) muscle, small intestine, and the growth performance of broiler chickens. This study used 360 chickens then divided into 4 treatment groups with each group amounting to 90 with 3 replications. The control group (K) was given basal feed, perlakuan 1 (P1) group with PHS 0.25% /kg basal feed, group P2 with PHS 0.5%/kg basal feed, and group P3 with PHS 1%/kg basal feed. The treatment was carried out until the chicken was 18 days old. The parameters observed were chicken body weight at post-hatch age, 3, 6, 9, 12, 15, and 18 days, feed conversion ratio (FCR), histological structure of pectoralis muscle, and small intestine. Data were analyzed using One-way ANOVA, significance (P≤0.05). The results showed that body weight and FCR values of groups P1, P2, P3 were significant towards the control. The results of the pectoralis muscle treatment group were increased significantly compared to the control. The morphological results of duodenum and jejunum groups P1, P2, P3 were significantly increased towards the control. The conclusions of this study indicate that PHS in feed shows improved body weight, the FCR value, muscle performance of PT, and structure of small intestine of broiler chickens with the addition of the most optimal supplement of peanut hulls, which is 0.5%/kg basal diet.

Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak etanolik jamur kuping (Auricularia auricula) yang diimbuhkan pada pakan terhadap performa pertumbuhan dan morfologi usus halus ayam jawa super [Gallus gallus gallus (Linnaeus, 1758)]. Penelitian ini menggunakan desain rancangan acak lengkap, terdiri atas lima perlakuan, dengan 20 ekor Day-old Chicks (DOC) pada masing-masing perlakuan sebagai ulangan. Perlakuan kontrol dengan pakan basal, perlakuan P1 dengan pemberian tambahan 1,25 g ekstrak etanolik A. auricula/kg dalam pakan basal, perlakuan P2 dengan 2,5 g ekstrak etanolik A. auricula/kg pakan basal, perlakuan P3 dengan 5 g ekstrak etanolik A. auricula/kg pakan basal, dan perlakuan P4 dengan 7,5 g ekstrak etanolik A. auricula/kg pakan basal. Pakan diberikan hingga umur 15 hari. Parameter yang diamati meliputi berat badan ayam pada umur pasca menetas, 3, 7, 12, dan 15 hari, Feed Conversion Ratio (FCR) serta ketinggian villi, kedalaman kripta dan rasio villi/kripta usus halus di umur ayam ke-0 dan 15 hari. Analisis data dilakukan dengan uji sidik ragam satu arah dan dilanjutkan dengan uji Tukey dengan signifikansi P?0,05. Hasil penelitian menunjukkan bahwa berat badan, capaian berat badan, asupan pakan, nilai FCR dan morfologi usus halus pada ayam jawa super pada perlakuan P3 dan perlakuan P4 pada hari ke-15 lebih tinggi dibandingkan dengan kontrol dan perlakuan lainnya (P?0,05). Simpulan dari penelitian menunjukkan bahwa ekstrak etanolik A. auricula/ dapat memberikan pengaruh baik terhadap performa pertumbuhan dan morfologi usus halus ayam jawa super.

This study aimed to know the effect of AGP on growth performance, duodenal histological structure and pectoralis muscle of Kampung chicken. This research was conducted by designing 3 groups with each group consisting of 20-day old chicks (DOC) of Kampung chickens. The control group was given basal feed without AGP bacitracin, group 2 was treated with 0.125 g of bacitracin /kg of basal feed and group 3 was treated with 0.25 g bacitracin/kg of basal feed until 12 days old. The parameters observed were chicken body weight on days posthatch, 3, 5, 7, 9, and 12, morphometry, visceral organ weight, duodenal organ morphology and muscle performance of Pectoralis thoracicus at 12 days old. Data analysis used one way ANOVA test followed by Tukey test with significance of P≤ 0,05. The result showed that the morphology of the doudenum and the myofiber area of group 3 indicated significant differences compared to the control group. The conclusion of this study revealed that administration of AGP bacitracin with 0.25 g/ kg dose of basal feed may increase the growth performance of Kampung chicken.