Judul: Studi hubungan respon ukuran tubuh dan pemberian pakan terhadap pertumbuhan sapi pedet dan dara pada lokasi yang berbeda
Abstrak: The environment condition directly or inderectly influence animal performance, such as growth. Growth in animal was difine in many ways. One of its parameter is body growth. Location this riset was Cikole, Ciater and Cibungbulan in East Java and Pondok Ranggon in Jakarta. The present study was done in high, middle and lowland to observe wither height, body length (BL), chest width (CW), and heart girth (HG). 121 heads calves and and heifer 131 heads. Calipster and Rondo Ribon were used to measure the body size. The Gompertz model was used to predict the growth parameter of mature age. The age maturity for highland was 348-372 days, midleland 378 days, and lowland 466 days. The growth rate for all body size (BL, CW, HG) were higher in highland than midleland and lowland. The sequences of growth development from the Gompertz analysis were BL, CW, and HG respectively. Heifer which those early in puberty or mature age will reach better in body size.
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Judul: Milk Production Performance Based on Body and Udder Size in Highland and Lowland Dairy Farms
Abstrak: Peningkatan populasi manusia menyebabkan permintaan susu meningkat, namun pertumbuhan populasi sapi perah belum mampu mengimbangi peningkatan konsumsi, sehingga ketersediaan sebagian besar produksi susu dan turunannya adalah melalui importasi. Besar kecilnya produksi susu tersebut salah satunya dipengaruhi oleh ukuran tubuh dan ambing dari seekor sapi. Tujuan dari penelitian ini yaitu menganalisis hubungan performa produksi susu berdasarkan ukuran tubuh dan ambing sapi perah di peternakan dataran tinggi dan dataran rendah. Penelitian ini menggunakan 10 sapi di peternakan sapi perah dataran tinggi dan 10 sapi di peternakan sapi perah dataran rendah. Metode yang digunakan yaitu pengukuran ukuran tubuh dan ambing sapi secara langsung serta mengukur banyaknya produksi susu yang dihasilkan selama dua minggu di kedua tempat. Data dikumpulkan dan dianalisis menggunakan rumus korelasi dan regresi. Hasil penelitian menunjukkan nilai korelasi sangat kuat antara panjang badan, tinggi badan, dan lingkar ambing dengan produksi susu di peternakan sapi perah dataran tinggi (0,988, 0,817 dan 0,988). Nilai analisis regresi menunjukkan bahwa panjang badan dan lingkar ambing memiliki nilai koefisien determinasi (R2) tertinggi 97,61% dengan model regresi Y = −43,1 + 0,3839X dan Y = −26,05 + 0,3659X. Hasil penelitian menunjukkan nilai korelasi sangat kuat antara panjang badan dan lingkar ambing dengan produksi susu di peternakan sapi perah dataran rendah (0,912 dan 0,951). Nilai analisis regresi menunjukkan bahwa lingkar ambing memiliki nilai koefisien determinasi (R2) tertinggi 90,44% dengan model regresi Y = −77,1 + 0,7211X.
Keyword: Body size, Dairy cows, Milk production, Udder size

Judul: Sintesis Krisin dari Floroglusinol
Abstrak: Flavone is a class of flavonoid, widely distributed in vascular plants. Flavones containing hydroxyl groups at 5 and 7 position are quite important regarding their biological activities and their abiquity in nature. Flavone having hydroxyl groups only at position 5 and 7 or 5,7-dihydroxyflavone is known as chrysin. In this study, crude chrysin had been successfully synthesized in 3 steps from phloroglucinol as starting material. Phloroglucinol was acetylated with acetonitrile and HCl gas, resulting phloroacetophenone amount to 74%. Phloroacetophenone benzoylation with 4.5 equivalents of benzoyl chloride produced tribenzoyl phloroacetophenone in 103–107% of yield and the subsequent Baker-Venkataraman rearrangement of the ester by using KOH in dried pyridine produced crude chrysin, with conversion percentage of 71.62%. All synthetic products had been characterized by melting point and spectroscopically.
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