Judul: Konsentrasi mineral makro (Ca, P, Mg, dan S) dalam susu pada sapi yang diberi suplemen biomineral dienkapsulasi.
Abstrak: Lower productivity of dairy cow is caused by lack of grass availability especially in dry season, low concentrate quality and nutrient deficiency. The purpose of this experiment was to study the concentration of macro minerals (Ca, P, Mg, and S) in milk of Fries Holland dairy cows to the addition of encapsulated biomineral supplement in feed. The biominerals was prepared from rumen liquor. This experiment used a randomized block design, with 4 treatments and 4 groups as replications. Treatments consisted of R1 (control), R2 (R1 + 1.5 % biomineral without protection), R3 (R1 + 1.5% encapsulated biomineral) and R4 (R2 + 1.5% mineral mix). The experiment was conducted for 62 days with the adaptation periods for 2 weeks. Variables observed were dry matter intake, mineral consumptions and mineral concentrations (Ca, P, Mg, and S) in milk. The data were analyzed using Analysis of Variance, and differences among treatments were further examined with Contrast Orthogonal Test. The results showed that treatments did not significantly affect feed consumption, mineral intake and mineral concentrations in milk. However, the biomineral supplements can still be used as supplement in dairy ration.
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Judul: Pemberian Biomineral Dienkapsulasi Terhadap Konsumsi Lemak Kasar dan Serat kasar serta Komposisi Susu Sapi Friesian Holstein.
Abstrak: Supplements are used as feed to cattle to improve its production perfomances. Supplements that are given to livestock should be in good content and quality, having good biological value, natural as cattle feeds, and easy in the production and having cheap price. The aim of this experiment is to determine the effects of encapsulation biomineral supplement addition on ether extract and crude fiber intakes and milk composition of FH cows. This experiment used randomized block design with 4 treatments and 4 replications. The treatments were RI (control), R2 (R1 + 1.5% biomineral), R3 (R1 + 1.5% biomineral encapsulated with xylose), R4 (R1 + 1.5% mineral mix). This experiment was conducted for 2 months with 2 weeks adaption periods. Variables observed were dry matter consumption, ether extract and crude fibre intakes, and milk composition. The data were analyzed with analysis of variance. The results showed that the addition of supplements did not produce significant effects on all variables measured due to differences in age, days of lactation, and feeding. Although the effect of supplementation was not significant, the treatment tends to improve milk composition. Therefore, there is a possibility of using the biomineral supplementation to dairy cows.
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Judul: Graphology Analysis Based on Letter a and t Using Perceptron.
Abstrak: Graphology or handwriting analysis is a method of identifying, analyzing, evaluating, and understanding personality through the strokes and patterns revealed by handwriting. A person who can analyze handwriting is called a graphologist. A graphologists can be subjective in their assesments different graphologist can have different analysis of the same handwriting. Therefore, a computer technology may help to minimize the subjectivity. This research used perceptron to analyze personality based on handwriting. Perceptron is one method of neural network. This research analyze two letters to letter a and t image. Letter a are represented by 135 images, consisting of 81 images as training data and 54 images as testing data. There are 150 images used for t images, consisting of 90 images as training data and 60 images as testing data.There are 5 experiments consisting of 2 experiments for letter a and 3 experiments for letter t. The result is the character of each class letter a and t where each parameters there are 3 classes. The accuracy of letter t and letter a was 55% and 88.89% respectively.
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