Judul: Suhu Tubuh Sapi Neonatus Friesian Holstein yang Diberi Kolostrum dan Ditantang Escherichia coli
Abstrak: The aimed of this research is to know body temperature of calves after challenges whith Escherichia Coli K-99 which given colostrum from vaccinated mother with polyvalent E. coli. In this research were used six neonates calves of Friesian Holstein. Immediately after they born, were done physical examination. Five calves were given colostrums (Asp1-Asp5) and another one(Asp) were given milk. Colostrum and milk were given as soon as possible after birth (1-2 hours of birth), 10%/kg body weight, 2 times/days for 3 days. After that, all neonates calves, were given milk 2 times/day. Challenge test was performed to all of the calves at 12 hours after birth, using live bacteria E. coli K-99, 5x1010 Colony Forming Unit (CFU) peroral. The result of this research demonstrated that calves which were given colostrums didn’t showed significant body temperature increased than calves were given milk. Key words: Colostrum, E. coli, the increase temperature
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Judul: Deteksi Keberadaan Antibodi Anti-Escherichia coli di Dalam Serum Sapi Neonatus yang Diberi Kolostrum dengan Metode Enzyme-Linked Immunosorbent Assay (ELISA)
Abstrak: The aim of this research is to study the present of antibody against E. coli in the sera of neonates calf which given colostrum and challenged by enterotoxigenic Escherichia coli (ETEC) K99. Eleven neonates calves were clinically healthy kept since birth until the age of one week.This neonates calves are divided into two groups, first group is colostrums group (8 calves) and the other is non-colostrum group (3 calves). Colostrum group were given colostrum on age 0-72 hours with 12 hours interval, whereas non-colostrum group are given cow milk at the same time. Each group were challenge by ETEC K99 5X1010 CFU emulsion it in alhydrogel peroral at the 12 hours of age. Blood sample were taken from jugularis vein on age 0th, 12th, 24th, 48th, 72th, and 168th hours. The present of antibody in the sera detecting by indirect ELISA (Enzyme-Linked Immunosorbent Assay Method). The result showed of the highest concentration of antibody in the sera at 24 hours of age for colostrums group, whereas no antibody against E. coli were detected for non-colostrums group . Based on the results, we concluded the concentration of antibody in colostrum can detection at 24 hours until one week after given colostrum. The highest concentration of antibody anti- E. coli in 24 hours after given colostrum.
Keyword: colostrum, neonates calf, antibody anti-E. coli, sapi neonatus, Kolostrum,

Judul: Kekuatan Sambungan Tarik Tiga Jenis Kayu Menurut Kombinasi Jumlah dan Diameter Paku.
Abstrak: Kayu telah lama dikenal sebagai bahan baku utama dalam konstruksi. Dalam pemakaiannya, sambungan atau buhul pada kayu terutama muncul karena alasan geometrik dan keterbatasan ukuran panjang kayu yang tersedia. Sambungan merupakan titik terlemah dalam konstruksi bangunan. Maka harus diupayakan agar titik sambungan hanya menerima gaya tarik atau tekan aksial saja. Kekuatan tarik sambungan perlu mendapat perhatian karena kekuatannya yang kecil, sehingga sulit untuk menyamai kekuatan balok atau batang utamanya.
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