Judul: Kadar Blood Urea Nitrogen dan Kreatinin Anak Sapi Friesian Holstein Yang Diberi Pakan dengan Tambahan Mineral Zn
Abstrak: The objective of this experiment was to study the concentration of blood urea nitrogen and creatinine of Friesian Holstein (FH) calves, received feed supplemented by Zn. Nine healthy Holstein calves, 6-10 months old were used in this experiment . The calves were devided into three groups, consisted of three calves, i.e. with zero ppm (control), 60 ppm and 120 ppm of Zn supplementation, respectively. Blood samples were collected from jugular vein for blood urea nitrogen and creatinine analysis, prior to and every month following treatment for three months. Blood urea nitrogen and creatinine concentrations were analysed using spectrophotometer. Results of the experiment indicated that the BUN and creatinine concentration ranging between 8.15 - 18.50 mg/dL and 0,64 - 0,77 mg/dL, respectively. The highest concentration of BUN and creatinine were on the calves supplemented by 60 ppm of Zn. In conclusion, the concentration of BUN and creatinine on calves supplemented by Zn were in a normal range. The supplementation of 60 and 120 ppm Zn given for 3 months were safe for Holstein calves.
Keyword: Bogor Agricultural University (IPB), Friesian Holstein, calves, creatinine, BUN, Zn

Judul: Gambaran Sel Darah Merah pada Anak Sapi Friesian Holstein yang diberi tambahan Mineral ZN
Abstrak: Zinc is an essential micro mineral required by ruminants which play important role in hematology profiles. The aim of this study was is to determine the effect of zinc (Zn) supplementation towards the profile of erythrocyte count, haemoglobin concentration, and haematocrit values on the Friesian Holstein calf. Nine Friesian Holstein calves between 6 – 10 months of age were used in this experiment. Calves were divided into three groups. Each group were consisted of three calves i.e with zero (control), 60 ppm and 120 ppm of Zn supplementation, respectively. Every month, blood has been collected right before and after giving Zn and continued for about three months. Blood sample were collected from jugular vein and analysed for the amount of erythrocytes, hemoglobin concentration, and the hematocrit value. Result shown that the amount of erythrocytes, hemoglobin concentration, and the hematocrit values show no differences between the groups. Supplementation of Zn 60 ppm or 120 ppm also did not show a appropriate difference towards the amount of erythrocytes, hemoglobin concentration, and the hematocrit value towards the Friesian Holstein calf (P>0,05).
Keyword: Bogor Agricultural University (IPB), zinc (Zn), hematocrit, hemoglobin, erythrocyte, Friesian Holstein calf

Judul: Pengembangan model markov tersembunyi pada identifikasi pembicara
Abstrak: Model Markov Tersembunyi merupakan suatu model yang tersusun dari dua buah proses stokastik, yaitu rantai Markov untuk menampung kemajuan temporal dan proses yang teramati untuk menampung variasi akustik. Model ini dapat digunakan sebagai metode pencocokan pola pada sistem identifikasi pembicaraan. Setiap model mewakili referensi pola dari seorang pembicara di dalam sistem identifikasi pembicara.
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