Judul: Penggunaan Biji Ketumbar (Coriander sativum Linn) Sangrai Dalam Ransum Terhadap Performa Ayam Broiler
Abstrak: Using antibiotics as a feed additive made residues in broiler’s carcass. If meat’s chicken being consumed, it made some worry about antibiotic resistance, so it should required feed additive non antibiotic which made from the natural materials (herbs), such as coriander. By using natural materials (herbs), made some benefits and advantages as well as being an alternative to antibiotics. Broiler chickens fed diets containing 0%, 2% and 2% roasted coriander with three replications. This research was conducted for five weeks. First week until third week was starter phase and fourth week and fifth week was the finisher phase. Variables observed in this research were body weight, body weight gain, consumption, feed conversion and mortality. The results of research on weight loss phase of starter looks significantly different (P<0.01), and for body weight gain, consumption, and feed conversion were significantly different (P<0.05). For the finisher phase of weight gain and increase body weight looked significantly different (P<0.05) and significantly different (p<0.01), except for consumption and feed conversion did not look significantly different (p>0.01). This result indicated that the addition of 2% toasted coriander seeds can not be used for the finisher phase.
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Judul: Efektivitas Penggunaan Biji Ketumbar (Coriandrum sativum Linn) Mentah dan Sangrai dalam Ransum Terhadap Profil Darah Ayam Broiler
Abstrak: This study aimed to analyzed coriander seeds and roasted coriander on blood profiles of broilers. This study used 90 chickens DOC ( CP Cobb 707 ) were maintained for 5 weeks. Treatment diet were used in this study is the diet without coriander seeds ( R0 ), diet with the addition of 2% coriander seeds raw ( R1 ), and the addition of 2% diet with toasted coriander seeds ( R2 ) . Diets and drinking water given ad libitum. The experimental design used was completely randomized design ( CRD ) with 3 treatments and 3 replications, each replication consisted of 10 animals. The results showed the use of raw coriander seeds ( R1 ) and roasted coriander seeds ( R2 ) with a level of 2% in the diet did not affect on the percentage of hematocrit, hemoglobin, erythrocytes, and leukocytes in the blood of broiler chickens.
Keyword: Bogor Agricultural University (IPB), toasted coriander seeds, raw coriander seeds, broiler chickens, blood profiles

Judul: Formulasi Hamilton Untuk Menggambarkan Deformasi Gelombang Soliter Dengan Dasar Tidak Rata Pada Fluida Dua Lapisan
Abstrak: Gelombang internal adalah suatu gelombang yang muncul di bawah permukaan laut sehingga gelombang ini tidak teramati secara kasat mata. Formulasi Hamilton dirumuskan untuk menjelaskan gerak gelombang ini. Dalam hal ini diasumsikan bahwa fluida yang ditinjau terdiri atas dua lapisan dengan masing-masing lapisan memiliki rapat massa yang konstan. Selain itu, diasumsikan pula fluida yang ditinjau berupa fluida tak mampat (incompressible) dan tak kental (invicid). Formulasi Hamilton dilakukan dengan meninjau fluida dua lapisan yang berada pada domain yang dibatasi oleh batas atas yang rata dan batas bawah yang tidak rata. Hamilton (energi total)-nya didefinisikan sebagai penjumlahan antara energi kinetik dan energi potensialnya. Karena energi kinetik tidak secara eksplisit dinyatakan dalam peubah fisis, maka digunakan metode asimtotik untuk menentukan energi totalnya. Dalam hal ini diasumsikan bahwa gelombang interfacial yang ditinjau cukup panjang, dan amplitudo yang cukup kecil. Persamaan Korteweg de- Vries (KdV) diperoleh, jika disumsikan bahwa gelombang interfacial hanya merambat pada satu arah, sedangkan jika gelombang tersebut merambat ke dua arah, diperoleh persamaan Boussinesq.
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