Judul: Penurunan tingkat stres pada ayam broiler melalui pemberian metionina
Abstrak: Broiler chicken is the most popular livestock in Indonesia. Heat and metabolic stress in Indonesia become problem to increase broiler chicken production. Methionine is an essensial amino acid which can be used to decrease of heat and metabolic stress. The purpose of this study was to obtain an effective dose of methionine that observed from the differentiation of leucocyte. The method used was a completely randomized design one-way ANOVA. A total of 27 broiler chickens were divided into 3 groups. First group was control, second group was given methionine 0.2% in feed, and third group was given methionine 0.4% in feed. Blood analysis was conducted by using hemositometer method and blood smear examination. Methionine administration in feed were not significantly affect the leucocyte number and heterophil/lymphocyte ratio. The highest of average number lymphocytes obtained at the dose of 0.2%. The lowest of average number heterophils obtained at the dose of 0.2%. The results showed that administration of methionine 0.2% obtain the best H/L ratio. Methionine 0.2% could be used to reduce heat stress.
Keyword: methionine, broiler chicken, differentiation of leucocyte, heat stress, glucocorticoid

Judul: Perbaikan performa ayam broiler melalui pemberian metionina sebagai imbuhan pakan
Abstrak: Methionine is a safe, economic, and high quality feed additive. A study on the effect of methionine supplementation on broiler chicken performance was conducted by using 30 broiler chickens. Broiler chickens were assigned into 3 groups: P1 (control, without methionine supplementation), P2 (0.2% methionine supplementation), and P3 (0.4% methionine supplementation). Parameters measured were growth rate, final body weight, feed efficiency (feed convertion ratio/FCR), and mortality rate. The result showed that 0.4% methionine supplementation significantly increased growth rate, final body weight, and feed efficiency (P<0.05). However, growth rate and final weight were not affected by 0.2% methionine supplementation (P≥0.05). Methionine supplementation increased broiler performance between 7-21 days of age and showed no effect after 21 days of age. It was concluded that methionine usage as a feed additive is recommended in broiler chicken with 0.4% of dose, between 7-21 days of age
Keyword: broiler chicken, methionine, FCR, body weight, mortality.

Judul: Perencanam Lanskap Sunda Kalapa, Jakarta Utara Sebagai Kawasan W isata Sejarah
Abstrak: Perkembangan kota Jakarta dari waktu ke waktu sangatlah cepat, cehingga menyebabkan kota-kota tua banyak yang tergusur untuk dijadikan daerah baru yang lebih modern. Apabila hal tersebut tidak ditanggulangi secara dini maka keberadaan Kota lama Jakarta akan hilang. Hal inilah yang melatar belakangi untuk dilakukan tindakan perlindungan dan revitalisasi kawasan bersejarah Sund Kalapa. Adapun tujuan yang ingin dicapai dalam penelitian ini adalah membuat suatu proses perencanaan lanskap sejarah kawasan Sunda Kalapa, Jakarta Utara. Hal ini diharapkan selain menunjang nilai arsitektur bangunan bersejarah dan menambah nilai kualitas lingkungan, juga meningkatkan aktivitas wisata sejarah.
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