Judul: Efektivitas follicle stimulating hormone (FSH) terhadap produktivitas, siklus bertelur dan kaitannya dengan kadar estradiol 17-beta dalam serum ayam lokal (Gallus domesticus)
Abstrak: Penelitian ini bertujuan untuk mempelajari efektivitas Follicle Stimulating Hormone (FSH) terhadap produktivitas, siklus bertelur ayam lokal (Gallus domesticus) dan pengaruhnya terhadap konsentrasi hormon estradiol 17-ẞ, jumlah folikel yang sedang tumbuh, dan deposisi kuning telur. Sebanyak delapan ekor ayam lokal betina dewasa digunakan dalam penelitian ini, dikelompokkan secara acak menjadi dua kelompok yaitu kelompok FSH sebanyak lima ekor dan kelompok kontrol sebanyak tiga ekor. Kelompok FSH disuntik hormon pFSH 50 µg/1 ml saline BSA 0,1% sedangkan kelompok kontrol disuntik dengan 1 ml saline BSA 0,1% setiap hari selama lima hari berturut-turut secara subkutan di daerah abdomen. Hasil penelitian ini menunjukkan adanya peningkatan produksi telur secara signifikan (P<0,05) dalam suatu periode bertelur (12 bulan) pada kelompok FSH dari 32,80±1,50 butir menjadi 45,40±0,33 butir dibandingkan kelompok kontrol dari 46,67±1,70 butir menjadi 41,33±0,81 butir. Penyuntikan FSH menghasilkan perbaikan pola siklus bertelur dibandingkan siklus normalnya yaitu dengan memperpendek masa istirahat bertelur secara signifikan (P<0,05) dalam suatu periode bertelur (12 bulan) pada kelompok FSH dari 103,40±0,39 hari menjadi 62,00±0,81 hari sedangkan kelompok kontrol dari 75,67±0,33 hari menjadi 48,00±0,78 hari. Kadar estradiol 17-ẞ serum ayam dari kelompok FSH mengalami puncak peningkatan secara signifikan pada saat hari pertama dan hari kelima selama perlakuan (337,78; 535,23 pg/ml) dibandingkan dengan kelompok kontrol (193,73; 313,14 pg/ml). Disamping itu terjadi pula peningkatan (P<0,05) pertumbuhan folikel (jumlah folikel F4,F5, dan diameter serta berat folikel F1,F2) seiring dengan peningkatan berat ovarium secara signifikan (P<0,05) pada kelompok FSH (58,64±0,85 g) dibandingkan kelompok kontrol (46,33±0,88 g). Penelitian ini menyimpulkan bahwa respon dari penyuntikan FSH dapat meningkatkan deposisi kuning telur dan konsentrasi estradiol 17-ẞ dalam serum ayam lokal, sehingga meningkatkan jumlah folikel yang tumbuh dan meningkatkan produktivitas telur serta memperpendek masa istirahat dalam suatu periode bertelur. ...
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Judul: Pengaruh Gonadotropin Releasing Hormone (GnRH) Terhadap Produktivitas, Siklus Bertelur Dan Biometri Organ Reproduksi Serta Hubungannya Dengan Konsentrasi Progesteron Serum Ayam Lokal (Gallus domesticus)
Abstrak: This experiment was conducted to study the effect of Gonadotropin Releasing Hormone (GnRH) on productivity, egg laying cycle of the domestic fowl (Gallus domesticus) and its effect on serom Progesterone concentration, number of growing follicles and weight of the ovary, oviduct and biometry of the reproductve organs. Ten rna/lire female hens were used in this research. These hens were devided randomly into the GuRH and control group consisting of five hens each. The GnRH group was injected intramuscular into the pectoral muscle with 1 mL of 50pg/mI. GnRH, while the control group was injected with 1 mL of 0,9% saline for seven conseccutive days. The results showed significant (P<0,05) elevated producth;ty in the laying period (12 months) of the GnRB group from 50,601:0,75 eggs to 67,71:1:0,15 eggs as compared to that of the control group from 64,92x1,00 eggs to 40,521:0,30 eggs. GnRH injection, improved the egg laying cycle patterns as compared to the normal egg laying cycle by decreasing the lag time in a laying period (12 months) from 98,33:1:0,39 days to 68,00:0,81 days significantly (P<0,05) while the control group from 84,40:0,33 days to 71,33:0,78 days. Serom Progesterone concentration of the GnRH group (7,63; 1,93; 3,57; 2,92 ng/mL) increased and reached its peak significantly as compared to the control group (0,15; 0,01; 0,74; 0,98 ng/mL) on day 1, 2, 5 and 7 of treatment. The number of growing follicles (the number of F4, F5 follicles; F1, F2, F3 follicles weight) also increased significantly (P<0,05) in the GnRH group as compared to the control group, concomitant with the increasing ovarian and oviduct weight (p<0,05) in the GnRH group (37, 65:1, l6; 50,43:,58 g) aS compared to the control group (28,50:1,00; 31,15:1,65 g). GnRH also increased significanly (P< 0,05) the biometry of the reproductive organs. From this research it could be concluded that responsiveness of GnRH injection could increased Progesterone concentrations, resulting ill the number of follicular growth F4, F5 and ultimately Fl, F2, F3 increased egg production and repaired egg laying cycle. GnRH also increased weight of the ovaries, oviduct alld hiomelfy of the reproductive organs.
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Judul: Pengembangan Sistem Rotasi Peta pada Perangkat Mobile tanpa Sensor Magnetometer
Abstrak: Due to the improvement of technology, the function of mobile phone has changed a lot. Nowadays, mobile phone is used not only for communication, but also to support the user’s activity. Many mobile phones now have Operating System (OS) and sensors like GPS and magnetometer. GPS is a sensor that can be used to identify any location, including the location of the user, while magnetometer can be used to identify direction. With data that come from GPS and magnetometer, we can build a navigation application that can rotate its map according to the rotation of the user. Meanwhile, in the Android Compability Definition Document point 1.6 until 2.2, Google have requirements for mobile phones to have GPS and magnetometer sensors if they want to use Android OS. But, since the release of 2.3.3 OS, Google has changed its requirements, allowing any mobile phones to have Android OS without having the magnetometer sensor. The objective of this research is to build an navigation application that can rotate without using magnetometer sensor. The value of the rotation degree is taken from last two position. To stabilize the value, Exponential Smoothing is used in filtering process. This system also use Haversine method to recognize whether the user is walking or driving/riding.
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