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: Pengaruh Pemberian Ketumbar (Coriandrum sativum L) terhadap Organ Dalam Ayam Broiler
Abstrak: Herb is plant used as a medicine, seasoning, or flavoring. When consumed by livestock in a normal dosage, it can reduce stress without any negative effects. In this study, coriander, a type of herb, was given to the broilers which were reared intensively. Coriander contains flavonoid, which is antibacterial in nature, and it also has an antioxidant that can enhance the work of immune system. The objective of this experiment was to study the effect of coriander seed in the diet on the internal organs of broilers. The research was conducted in the Laboratory of Poultry Production (Cage B), Faculty of Animal Science, Bogor Agricultural University. This study used by a completely randomized design (CRD). The study involved 120 DOC with 4 dietary treatments and 3 replication (10 broilers / cage). The dietary treatments consisted of P0 (control, without corianders seeds), P1 (1% coriander seeds), P2 (2% coriander seeds) and P3 (3% coriander seeds). The data obtained were analyzed using analysis of variance, ANOVA. The treatment that indicated a significant effect on the observed variables would be further tested by using Duncan. The research results show that the treatment of giving coriander seeds were not significant different (P> 0.05) compared to the control on gizzard, duodenum, jejenum, illeum, pancreas, seka, liver, heart and spleen. The coriander seeds treatment was significantly different (P <0.05) compared to the control on the bursa fabrisius and highly significantly different (P <0.01) on thymus weight. Coriander seeds treatment up to the level of 3% had no effects on the gizzard, duodenum, jejenum, illeum, pancreas, seka, liver, heart, kidneys, and spleen of broilers aged 5 weeks. The coriander seeds treatment up to the level of 2% increased the weight of bursa fabrisius and coriander seeds treatment up to the level of 3% increased the weight thymus.
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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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