Judul: Heritability of Birth Weight, Weaning Weight, and Yearling Weight of Pasundan Cattle
Abstrak: Pasundan cattle is an Indonesia’s local cattle in West Java that has potential to be developed as beef cattle. Genetic quality can be evaluated based on heritability values. This study aims to estimate the heritability values of birth weight, weaning weight, and yearling weight of pasundan cattle in Balai Perbibitan dan Pengembangan Inseminasi Buatan Ternak Sapi Potong Ciamis. The data used were 216 consisting of 91 for birth weight, 76 for weaning weight, and 49 for yearling weight collected from 9 bulls and 58 cows used to estimate the heritability values. Data was analyzed using descriptive statistic and estimation of heritability values using paternal halfsib correlations with nested classification. The mean of birth weight, weaning weight, and yearling weight of pasundan cattle were 18,37±3,48 kg; 87,14±19,01 kg; and 111,40±21,63 kg respectively. Body weight of male and female was not significant different (P>0,05). Heritability values of birth weight and weaning weight have been categorized in high heritability value, 0,39±0,12 and 0,65±0,49 respectively. On the other hand, the heritability value of yearling weight has been categorized as low heritability value, that was 0,04±0,23.
Keyword: weight, heritability, pasundan cattle

Judul: evaluasi potensi genetik sifat pertumbuhan pejantan kambing PE dan Saanen di balai penelitian ternak, Ciawi- Bogor
Abstrak: Etawah Grade (EG) and Saanen goats are two types of small ruminant commonly raised for producing milk in Indonesia. Milk yield can be increased by doing selection programs based on breeding value (EBV) in order to obtain superior bukcs. The objective of this research was to evaluate the genetic quality growth trait of EG and Saanen bucks at the Research Institute for Animal Production (RIAP), Ciawi-Bogor. This research used 136 kids from 8 EG buks and 48 kids from 2 Saanen bucks from RIAP, Ciawi-Bogor. The data came from the recording in 2006 until 2009. Variables measured were birth weight and weaning weight then analyzed by t-test, weaning weight data were standardized to the age of 120 days and corrected to the type of single births and male (Saanen), and corrected to the type of twin births and female (EG). Heritability was calculated by the method of paternal half sibs, and the value of breeding (Breeding Value) was calculated by the Contemporary Comparison method. The results showed that male EG birth weight was 3,20±0,67 kg, while female birth weight was 2,87±0,60 kg. Male Saanen birth weight was 3,31±0,39 kg, while female birth weight was 2,98±0,39 kg. Etawah Grade birth weight in single birth was 3,28±0,69 kg and twins was 2,83±0,53 kg. Saanen birth weight in single birth was 3,33±0,69 kg, and twins was 2,94±0,21 kg. Heritability of EG birth weight and weaning weight were classified as high (0,50±0,34 and 0,56±0,36). Heritability of Saanen birth weight was 0,36 ± 0,68, this value was classified as moderate. Etawah Grade bucks with high breeding value (BV) was the identity number 261 (0,77), whereas that in Saanen buck was the identity number 9021 (0,49).
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Judul: Sintesis Nanokomposit Kaolin/TiO2 Teremban Fe2O3 untuk Adsorpsi-Fotodegradasi Biru Metilena
Abstrak: Kaolin is a type of clay mineral that has adsorption capacity. The experiment shows that the adsorption capacity of kaolin was 20.6 mg/g. This value is lower than zeolite adsorption capacity that in general has value above 100 mg/g. Mixing kaolin with other materials to form nanocomposite, may improve its adsorption properties. Nanocomposites that had been synthesized were kaolin/TiO2 nanocomposites with the addition of Fe2O3 using 2 synthetic methods, namely using ball milling and paste methods. The nanocomposite synthesized using ball milling method had higher adsorption capacity value, i.e. 23.6 mg/g. The nanocomposite of kaolin/ TiO2 was able to adsorb and degrade waste dyes in ultraviolet range. Furthermore, addition of Fe2O3 to the kaolin/TiO2 nanocomposite improved the performance of the nanocomposite by reacting under the visible rays. Therefore, the performance of nanocomposite of kaolin/TiO2 added with Fe2O3 was is more effective since visible ray is the major part of the sun light.
Keyword: nanocomposite of kaolin/TiO2/Fe2O3., kaolin, photodegradation, adsorption