Judul: Tingkah Laku Harian dan Pola Makan pada Domba Garut dengan Pemberian Pellet yang Mengandung Limbah Tauge dan Legum Indigofera sp.
Abstrak: Changes in the feed management can contribute to the change of behaviour that will impact on the productivity of livestock. The aim of this research was to study sheep behaviour as a result of giving bean sprouts waste pellet and Indigofera sp. pellet in the ration. This research used 6 garut lambs of 3 month old. There were two types experimental rations: (1) 30% of Indigofera sp.+70% concentrate and (2) 30% of bean sprout waste+70% concentrate. Parameter measured were sheep daily behaviour and eating behaviour. The data were recorded by a one zero sampling method and analyzed by Chi-square test. Data temperature and humidity obtained during the research were analyzed by Analysis of Varian (ANOVA). The result of temperature in the noon was significant higher than in the morning and afternoon, humidity in the morning was significant higher than in the noon and afternoon. Results showed that the daily behaviour exhibited by sheep with two types of ration (bean sprout waste and Indigofera sp.) were not significant. The activity of feed checking behaviour was significant, where the provision of Indigofera sp. pellet had greater frequency than bean sprout waste pellet, but did not cause stress to livestock. It is concluded that the two type of rations can be recommended to use in local sheep farm
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Judul: Performa Domba Garut dengan Pemberian Pakan Limbah Tauge dan Kangkung Kering Sebagai Hijauan Pengganti Rumput
Abstrak: The improvement of feed quality and raising management can increase the sheep performance. Nowadays, the availability of feed such as good quality grass is relatively expensive; therefore, there should be an alternative feed in place of grass. This research aimed to test the performance of male Garut sheep aged less than one year which was fed by bean sprout waste and dried kangkung as alternative feed. The raising time was two months. The feed treatment consisted of P0 (50% grass and 50% concentrate), (50% bean sprout waste and 50% concentrate), and (50% dried and 50% concentrate). The parameters observed were Daily Weight Gain, feed consumption, feed efficiency, and palatability. This study used complete by random design using feed factors. The data analysis used was ANOVA test, and if significantly influenced, Duncan test would be carried out. The research result showed that different kinds of feed did not have a significant effect on Daily Weight Gain and feed efficiency. However, it had a significant effect on feed consumption and palatability. Based on this research, it can be concluded that in general alternative feeds in form of bean sprout waste and dried kangkung can replace grass since the nutrition content is almost the same and generates similar Daily Weight Gain.
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Judul: Aproksimasi Fungsi Sinus dan Kosinus sebagai Kombinasi Linear dari Fungsi Eksponensial
Abstrak: Salah satu gagasan yang menarik dalam matematika adalah aproksimasi suatu fungsi oleh fungsi lain. Sebagai contoh, fungsi polinom dapat diaproksimasi menggunakan deret Taylor atau fungsi persamaan diferensial dapat diaproksimasi menggunakan deret Fourier. Adapun fungsi yang dapat mengaproksimasi fungsi lain salah satunya adalah fungsi eksponensial. Kemungkinan mengaproksimasi fungsi dengan kombinasi linear dari fungsi eksponensial dari bentuk eˣ, e²ˣ, ... dianggap sebagai perkembangan sejajar dengan gagasan Deret Taylor yang mengaproksimasi fungsi dengan kombinasi linear dari segi fungsi kuadrat. Fungsi sin x dan cos x digunakan sebagai target untuk menilai seberapa baik aproksimasi yang dilakukan oleh fungsi yang diberikan. Aproksimasi fungsi sinus dan kosinus menggunakan hampiran Taylor lebih akurat dibandingkan dengan aproksimasi menggunakan fungsi eksponensial.
Keyword: Aprosimaksi eksponensial, aproksimasi fungsi, aprosimaksi Taylor, fungsi eksponensial