Judul: Diversity and Prevalence of Chewing Lice (Phthiraptera: Mallophaga) in a Poultry Farm in Laladon, Bogor.
Abstrak: Poultry lice are notorious ectoparasites that pose significant challenges to the health and productivity of poultry, thereby affecting their economic value. This study aimed to investigate the diversity, prevalence, and degree of infestation of chewing lice in five different bird species: domestic chicken (Gallus gallus domesticus), turkey (Meleagris gallapavo), fantail pigeon (Columba livia domestica), swan geese (Anser cygnoides), and Muscovy duck (Cairina moschata). Specimens were collected from various body regions and identified using established identification keys. The results revealed the presence of Menacanthus and Menopon genera in chickens and turkeys, exclusive presence of Lipeurus in chickens, Anaticola in Muscovy ducks and swan geese, Colpocephalum in fantail pigeons and swan geese, Columbicola and Campanulotes exclusively in fantail pigeons, and Holomenopon exclusively in swan geese. The prevalence of lice infestation was determined, with all bird species exhibiting a 100% prevalence, except for Muscovy ducks, which showed a prevalence of 40%. The study highlighted the challenges in identifying poultry lice at the species level due to the unavailability of identification keys, leading to incomplete identification results. Moreover, farmers need to be aware of the detrimental effects of chronic lice infestations on poultry health and productivity, Kutu unggas merupakan ektoparasit yang menyebabkan gangguan terhadap kesehatan dan produktivitas unggas, sehingga mempengaruhi nilai ekonomi komoditi unggas. Penelitian ini bertujuan untuk mengetahui keragaman spesies, prevalensi, dan tingkat infestasi kutu pada lima spesies burung yang berbeda, yaitu ayam ras (Gallus gallus domesticus), kalkun (Meleagris gallapavo), merpati kipas (Columba livia domestica), angsa (Anser cygnoides), dan entog (Cairina moschata). Sampel kutu diambil dari berbagai bagian tubuh unggas dan diidentifikasi menggunakan kunci identifikasi morfologi. Hasil identifikasi menunjukkan keberadaan genus Menacanthus dan Menopon pada ayam dan kalkun, dan keberadaan eksklusif Lipeurus pada ayam. Kutu Anaticola pada entog dan angsa, Colpocephalum pada merpati kipas dan angsa, Columbicola dan Campanulotes secara eksklusif pada merpati kipas, serta Holomenopon secara eksklusif pada angsa. Infestasi kutu pada semua jenis unggas menunjukkan prevalensi 100%, kecuali pada entog dengan prevalensi 40%. Ketidaktersediaan kunci identifikasi kutu unggas sampai tingkat spesies, menjadikan hasil identifikasi tidak lengkap. Hasil penelitian menunkjukkan bahwa peternak harus berwaspada tentang dampak infestasi kutu yang kronis dan merugikan
Keyword: chewing lice, poultry, prevalence, species diversity

Judul: Ragam Jenis Kutu pada Ayam Bukan Ras di Pasar Tradisional Kota Bogor
Abstrak: Domestic chickens has high economic value because it can be used as a chicken layer and broiler. Lice was one of the ectoparasites that can attack domestic chickens. This study was conducted to determine the diversity and distribution of lice on domestic chickens so that it can be controlled properly. Lices were obtained from 42 domestic chickens at several markets in the area of Bogor, such as Gunung Batu market, Anyar market, Bogor market and Warung Jambu market. Lices were collected from several regions of chicken’s body, such as head to neck, back, breast to feet, wings, and tail. Lice samples were put into the container which has already contained 70% alcohol and identified. The results showed that the prevalence of lice infestation at traditional market was 50%. Lice species discovered were Menopon gallinae (77.14%), Lipeurus caponis (20.57%), and Goniodes dissimilis (2.29%). This study was dominated by Menopon gallinae with the largest distribution in the breast to feet region (97.39%).
Keyword: Menopon gallinae., Lipeurus caponis, Goniodes dissimilis, domestic chickens, Bogor Agricultural University (IPB)

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4