Judul: Kualitas Semen Domba Garut dengan Pemberian Pakan Limbah Tauge dan Indigofera sp pada Pengencer Tris Kuning Telur.
Abstrak: Garut ram is one of good comodity of the livestock, but still traditional management systems. This is a delimiter in garut ram heir superior quality. Semen preservation in several extender can be as choice to maintain genetic superior of garut ram. Semen quality itself affected by the nutrient factors contained in the waste bean sprouts and Indigofera sp such as protein and vitamin E, which is capable of affecting the quality of spermatozoa in garut ram. The research was aimed to study the influence of feeding with 30% waste bean sprouts and 30% Indigofera sp on sperm quality in the tris egg yolk extender. Semen sample were collected from 4 garut male with age around 11 months were two garut ram was fed with limbah tauge and two garut ram was fed with Indigofera sp. Collected semen were diluted in tris egg yolk extender and stored at refrigerator 5 oC until fifth days. Parameter of semen quality was analyzed as follow: for the colour, consistency, pH, volume semen and sperm mass movement were expressed with descriptively analysis. Concentration and cytoplasmic droplet were tested by T-Test analysis. Sperm motility, sperm viability, integrity of sperm plasma membrane and sperm secondary abnormality were analyzed using Completely Randomized Design Factorial (2x5). The first factor was fed (waste bean sprouts and Indigofera sp) and the second factor was storage time (day 1st,2st,3st,4st and 5st). Data was analyzed by Analysis of Variance (ANOVA) and continued with Duncan test to observed the different between treatments. Result of the experiment showed descriptively: colour, concistency and semen pH in all treatment have same quality. Semen volume were collected from garut ram with fed waste bean sprouts better than with fed Indigofera sp, whereas sperm mass movement with fed Indigofera sp better than with fed waste bean sprouts. T-test analyzed showed all treatment were not significant different (P>0,05) to sperm concentration and cytoplasmic droplet. Analysis of Variance showed sperm motility in all treatment were not significant different (P>0,05) whereas in first and second days storage significant better than after third storage (>40%). Such as with sperm viability and integrity of sperm plasma membrane were significant maintaint until fourth storage with percentage (>60% and >50%). Percentage sperm secondary abnormality in treatment with fed Indigofera sp significant better than treatment with fed waste bean sprouts. It can be summarized that all treatment were not influence to sperm quality garut ram 11 years old, but storage time influential to sperm motility, sperm viability, and integrity of sperm plasma membrane. It is suggested to do further research the influence of both feed on adult ram.
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Judul: Gambaran Kualitas Spermatozoa Domba Garut dengan Pemberian Ransum Komplit yang Mengandung Limbah Tauge dan Indigofera Sp.
Abstrak: The expe riment was conducted to analyse the influence of Indigofera Sp and waste bean sprout on spermquality young garut’s sheep. This research was conducted in September 2011 in Small Ruminants Airy Laboratory Block B Department Animal Production and Technology and Reproduction and Rehabilitation Unit of the Faculty of Veterinary Medicine. This experiment consists of two treatments and four replications. The treatments used different kind of feed materials such as R1 (30 % Indigofera Sp) or R2(30 % waste bean sprouts) then analysed b y T test. Semen collection was do ne in one week. Semen was analyzed macroscopically (colour, volume, pH, consistency) and microscopically (concentration, mass movement, viability, motility, abnormality, cytoplasm droplet, and HOS test). Result of semen analysis were compered with several result on garut’s semen quality from several researchs. Result of the mortality, viability, and abnormality were no significant different between sheep treated fed waste bean sprouts and Indigofera sp. (78,75%; 83,7%; and 30,54% vs 79,38%; 82, 93%; and 20,71%) respectively. It can be concluded that both feed materials (waste bean sprouts or Indigofera Sp.) have the same capabilities in improving the quality of the semen. However result of semen quality still have high abnormality due to sheep were used in this experiment were still immature sexualy.
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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