The quality sound of singing birds strongly depends on testosterone. Unfortunately, most of the testosterone will be converted to estradiol by the aromatase enzyme. The study aimed to examine the potential of natural aromatase blockers for increasing the frequency and quality of canary chirps. Five adult male canaries, with bodyweight 25-30 g were used in the study. After being adapted for a week, birds were fed a mixture of aromatase blockers and canary seed for 20 days at a dose of 0.3 mg /30 g body weight. Quantities of a song using Hagemon touch methods were calculated by frequency of chirping for 10 minutes, whereas the quality of the song was counted by the periods of once chirping for 10 minutes. Recording begins when the bird is given standard feeding and repeated after treatment for 20 days. The results showed that the frequency of chirping before given a mixture of ingredients was 15.3 /10 min, after being treated with aromatase blockers the frequency increased up to 78.9 /10 min. The length of the tweet before treatment was <1s while after treatment up to 17s. It can be concluded that aromatase blockers can increase the frequency and quality of male Canary's song.
Diare adalah penyakit yang sering ditemukan pada anjing dan Escherichia coli merupakan salah satu yang dianggap sebagai penyebabnya. Tujuan dari penelitian ini adalah menentukan diagnosis diare pada anjing yang disebabkan E. coli dan menentukan pilihan antibiotika sebagai terapi utama. Sebanyak 3 pasien anjing diare digunakan di dalam penelitian ini. Semua anjing diperiksa secara fisik dan E. coli diidentifikasi dari sampel fesesnya. Sampel feses dipupuk pada agar Harlequin™ E. coli/Coliform Medium dan diinkubasi pada 37 °C selama 24 jam. Koloni yang tumbuh diamati, dicat Gram dan diperiksa di bawah mikroskop. Bakteri selanjutnya diuji sensitivitasnya terhadap amoxicillin, chloramphenicol, doxycycline dan enrofloxacin menggunakan metode disk difusi. Zona pertumbuhan bakteri diukur dan dibandingkan dengan standar. Hasil penelitian menunjukkan bahwa E. coli ditemukan pada semua (3) sampel feses anjing diare. Semua bakteri tersebut sensitif terhadap chloramphenicol dan 1 isolat sensitif terhadap amoxicillin, tetapi isolat lainnya berifat intermedier sampai resisten terhadap amoxicillin, doxycylin dan enrofloksasin. Kesimpulan penelitian ini adalah E. coli dapat berperan sebagai penyebab diare pada anjing dan chloramphenicol adalah antibiotika pilihan utama untuk terapi.
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