Judul: Penggunaan Ransum Komplit Berbasis Sampah Sayuran Pasar untuk Produksi dan Komposisi Susu Kambing Perah
Abstrak: This experiment was conducted to observe effect of utilization vegetable waste of traditional market as complete feed on milk production and its composition of Dairy Goat. Nine lactating goats were used in a randomized block design (3X3) to observe feed consumption, milk production and milk composition (protein, fat, lactose, solid non fat). The complete ration feed used were normal, dried complete feed and silage with vegetable waste as main ingredients. The results showed that dried feed and silage as complete feed with vegetable waste as main ingredients decreased feed consumption, milk production, lactose but not for protein, fat, and solid non fat. It was concluded that dried complete feed and silage of traditional market waste can’t substitute normal ration in dairy goats.
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Judul: Evaluasi Ransum Komplit yang Mengandung Limbah Taoge Kacang Hijau dalam Berbagai Bentuk Pakan pada Ternak Domba
Abstrak: Mung bean sprouts waste is a waste of vegetables that are available in traditional market everyday. Using of fresh mung bean sprouts waste had several problems i.e., perishable and bulky. Its couse mung bean sprouts waste could not be stored for long periods and had large space for storage. The aim of this study was to assess the mung bean sprouts waste utilized in sheep ration. This study used complete ration that consisted of nature grass, mung bean sprouts waste, pollard, copra meal, molasses and urea. The study was divided into two experiments, first experiment was to assessment the nutritional quality of complete rations in vivo used sheeps. A complete randomized design with four various form of complete ration and three sheeps as replication in each of treatment was used in this experiment. Complete rations were given in fresh condition (R1), mash form (R2), pellet form (R3) and wafer form (R4). The parameters observed were feed consumption, body weight gain, feed efficiency, digestibility of dry matter and organic matter. The result of this study showed that digestibility of dry matter and organic matter do not significant differences. Feed consumption of sheeps fed by complete ration in pellet form (R3) was higher (P<0,05) than sheeps fed by fresh condition (R1) and mash form(R2). Body weight gain and feed efficiency of sheeps fed by complete ration in pellet form (R3) was higher (P<0,05) than other form. Second experiment was studied the effect of storage time in various physical forms. A completely randomized factorial design with 3 form of complete ration (mash, pellet and wafer) and 3 long time storage (0, 1 and 2 month) with three replications was used in this experiment. The observed variables include observations of moisture content, water activity and insect attack. The result of this study showed that moisture content had interaction (P<0,05) between form of complete ration and time of storage. Complete ration that storage for two month had water activity higher (P<0,05) than 0 and 1 month of storage. Insect attack to complete ration in pellet form that storage in one month was higher than other form in two month and same long time storage. Complete ration containing mung bean sprouts waste in pellet form that stored in one month had water content, water activity and insect attack can be tolerance. Feed consumption, body weigh gain, feed efficiency of complete ration containing mung bean sprouts waste in pellet form was higest.
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Judul: Gerak intertropical convergence zone di wilayah Indonesia
Abstrak: Intertropical Convergence Zone (ITCZ) merupakan salalı satu faktor yang mempengaruhi intensitas dan distribusi curah hujan di Indonesia. Pada umumnya daerah yang dilalui ITCZ memiliki curah hujan yang tinggi. Oleh sebab itu perlu diketahui posisi ITCZ setiap bulan. Dalam penelitian ini dikaji metode penentuan posisi ITCZ berdasarkan data Geostationery Meteorological Satellite serta pola gerak ITCZ tiap bulan. Penentuan posisi gerak ITCZ dilakukan dengan menggunakan persamaan regresi linear sederhana dan persamaan polinom orde dua/tiga. Dengan persamaan regresi linear sederhana dan polinom orde dua/tiga posisi ITCZ dapat ditentukan dengan ketepatan yang cukup baik. Posisi rata-rata ITCZ pada bulan Januari berada di belahan bumi selatan, sedangkan bulan April, Juli dan Oktober berada di belahan bumi utara. Dengan persamaan polinom orde dua/tiga pada bulan April, Juli dan Oktober posisi rata-rata ITCZ berada 2º lintang lebih ke utara dan pada bulan Januari berada 3º lintang lebih ke selatan dibandingkan dengan persamaan regresi linear sederhana. Untuk bulan Januari, April dan Juli penentuan posisi rata-rata ITCZ dengan persamaan polinom orde dua/tiga relatif lebih tepat, sedangkan dengan persamaan regresi linear sederhana terjadi penyimpangan yang cukup besar. Sebaliknya untuk bulan Oktober dengan persamaan regresi linear sederhana relatif lebih tepat. Secara umum pola gerak ITCZ tiap bulan (1994-1997) mengikuti gerak matahari. Pada bulan Desember-Februari ITCZ bergerak ke selatan ekuator, bulan Maret-Mei bergerak ke utara menuju ekuator, bulan Juni-Agustus bergerak lebih jauh ke utara dan bulan September-November kembali bergerak ke selatan. Posisi rata-rata ITCZ paling selatan pada 3° LS (bulan Maret), sedangkan posisi rata-rata ITCZ paling utara pada 14° LU (bulan Agustus). Penyimpangan posisi ITCZ dapat terjadi karena pengelompokan jenis awan yang kurang spesifik, juga dapat disebabkan oleh penyimpangan sirkulasi Walker dari keadaan normal. Luas zone ITCZ pada bulan Januari, April, Juli dan Oktober berubah-ubah baik dalam tahun yang sama maupun antar tahun (1994-1997).
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