Judul: Prevalensi infeksi Cryptosporidium sp pada sapi potong di Kecamatan Cijulang dan Cimerak, Ciamis, Jawa Barat
Abstrak: Cryptosporidium sp is a parasite causes cryptosporidiosis in cattle. Cryptosporidiosis can be transmitted from animals to humans and vice versa (zoonosis). This research aimed to determine the prevalence of Cryptosporidium sp infection in cattle at Cijulang and Cimerak regency, Ciamis, West Java. Fecal specimens from 145 cattles of 77 farmers, consisted of 20 calves, 33 heifers and 92 adult cattles. Based on gender, the sample was consisted of 127 cows and 18 bulls. Sample of feces were examined by floating Sheather sugar and acid-fast staining method. Percentage prevalence of Cryptosporidium sp in Cimerak area (43.18%) was higher than in Cijulang area (14.29%). The result of statistical tests shows the prevalence of Cryptosporidium sp infection based on age and gender is no significant difference (P>0.05). However, based on the results of descriptive, prevalence infection of Cryptosporidium sp in cows (33.1%) was higher than in bulls (23%).
Keyword: Cryptosporidium sp, prevalence, cattle, age, gender.

Judul: Prevalensi Kasus Kriptosporidiosis pada Sapi Potong di Kecamatan Cipatujah dan Cikalong, Tasikmalaya, Jawa Barat
Abstrak: Cryptosporidiosis is caused by Cryptosporidium sp. often occurs in cattle. This research aimed to determine the prevalence of Cryptosporidium sp infection in cattle at Cipatujah and Cikalong regency, Tasikmalaya, West Java. The research started in October 2012 to June 2013 used fecal specimens from 203 cattles of 117 farmers. Based on gender, sample consisted of 168 cows and 35 bulls. Based on age, consisted of 151 adult cattles, 24 heifers and 28 calves. Sample of feces were examined by floating sheather sugar, then afterwards observed using a light microscope. Percentage prevalence of Cryptosporidium sp at Cipatujah regency (13.08%) was higher than at Cikalong regency (8.33%). The infection of Cryptosporidium sp was higher in calves and heifers than adult cattles. The result of statistical tests shows the prevalence of cryptosporidiosis infection based on gender at Cipatujah regency is significant difference (P<0.05), but based on age at Cipatujah and Cikalong regency are no significant difference (P>0.05).
Keyword: prevalence, gender, Cryptosporidium sp, cattle, age

Judul: Sintesis Bahan Piezoelektrik Ba0.5Na0.5TiO3 – BaTiO3 dan Penambahan Gd2O3 dengan Metode Solid State Reaction
Abstrak: The synthesis of lead – free piezoelectric BNT – BT and addition Gd2O3 have done using solid state reaction. Synthesis of BNT – BT get a perovskite struktur with variation of % mol BT 3%, 7%, 12%. Diffraction pattern of 7% BT showed two peak ((002) and (200)) overlapping that is indicate transformation of phase from rhombohedral to tetragonal (MPB). Synthesis BNT – BT with addition Gd2O3 also a get perovskite struktur with variation of % weight Gd2O3 0.4%, 0.7%, 1%, 3%, 6%. Diffraction pattern of 0.4% Gd2O3 showed overlapping peak. At this komposition happen phase change from rhombohedral to tetragonal. At 0.4% - 0.7% komposition happen down significan point of c/a that is indicate in the komposition MPB of BNT – BT – Gd2O3
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