Judul: Penyusutan Bobot Badan dan Mortalitas Ayam Broiler pada Jarak Tempuh Transportasi yang Berbeda
Abstrak: Proses pengangkutan ayam broiler sebelum pemotongan merupakan kegiatan yang menyebabkan stres sehingga dapat mengakibatkan penyusutan bobot badan dan mortalitas. Penelitian ini bertujuan untuk mengevaluasi penyusutan bobot badan dan mortalitas ayam broiler pada jarak tempuh yang berbeda selama transportasi dari data-data penelitian bersumber dari jurnal internasional bereputasi dan jurnal nasional terakreditasi. Metode yang digunakan adalah studi literatur dengan teknik penulisan narative review. Lama jarak transportasi berpengaruh signifikan terhadap penyusutan bobot badan dan mortalitas ayam broiler. Faktor-faktor yang mempengaruhi penyusutan bobot badan dan mortalitas adalah suhu lingkungan, penempatan posisi box pengangkutan, kebisingan, dan getaran
Keyword: broiler chickens, distance, mortality, weight loss

Judul: Penyusutan dan Mortalitas Ayam Broiler pada Jarak Tempuh yang Berbeda Selama Pengangkutan
Abstrak: Transportation aspects of broiler chickens to slaughterhouse are concerned to reduce bodyweight and to increase number of mortality. The experiment was conducted to study the bodyweight loss and mortality of broiler chickens caused by transportation with different travelling distances. Chickens were transported to slaughterhouse at age of 40 days with average bodyweight at 1.5 kg and delivered from 3 different farms location in Bogor (50 km), Lebak (83 km), and Pandeglang (153 km), and observation was 3 times replicated. The percentage of bodyweight loss during travelling from Bogor, Lebak, and Pandeglang was 3.33 ± 0.06%, 3.73 ± 0.76%, and 4.50 ± 1.13%, respectively. The percentage of mortality during travelling from Bogor was 0.26 ± 0.17%, Lebak 0.74 ± 0.56%, and Pandeglang 0.46 ± 0.35%. There is a linear correlation between the percentage of bodyweight loss and the travelling distances of transported broiler chickens. but there is no correlation between mortality and the travelling distances. The highest percentage of mortality were from Lebak (83 km), Pandeglang (153 km), and Bogor (50 km), respectively.
Keyword: transportation., mortality, broiler, bodyweight loss

Judul: Sintesis dan Pencirian Senyawa 4-Dodekanadioilbis(1-fenil-3-metil-5-pirazolon) sebagai Ionofor untuk Penentuan Ion Lu3+ dengan Teknik Elektrode Selektif Ion
Abstrak: Ion selective electrode (ISE) as an alternative potentiometric method is used widely in determining Lu3+. The success of this method depends on the ionophor used on the ISE. The compound of 4-dodecanedioylbis(1-phenyl-3-methyl-5-pyrazolone) or H2DdBP as pyrazolone derivatives will be used as ionophor on ISE-Lu3+. H2DdBP had been successfully synthesized by Jensen’s method. This method involved reaction of 1-phenyl-3-methyl-5-pyrazolone and dodecanedioyl chloride in basic condition. A compound was produced as a solid substance and was purified by recrystallization using chloroform-ethanol. High performance liquid chromatogram showed that the compound was pure. The compound was in keto form with melting point range of 150-152ºC. Infrared spectra showed vibration peaks (cm-1) were 3451 (br, OH), 1624 (s, C=O), 1589 (s, phenyl C=C), 1558 (s, pyrazolone ring). Chemical shifts (Hz) for 1H-NMR were 7.81–7.84, 7.43–7.46, 7.26–7.290 (m, 10H, Ph); 2.72–2.75 (t, 4H, (CH2)2); 2.47 (s, 6H, CH3); 1.71–1.76 (m, 4H, (CH2)2); 1.32 (m, 12H, (CH2)6). All of these properties showed the characteristics of H2DdBP. Nernst factor of ISE-Lu3+ for two repetitions were 10.40 mV/decade and 8.60 mV/decade which showed that ISE-Lu3+ had good response in determining Lu3+.
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