Judul: Studi polimorfisme protein hemoglobin darah ayam arab periode produksi pada suhu kandang berbeda
Abstrak: The aim of this research was to study the effect of hemoglobin loci towards the characteristics of egg productivity of Arab laying hens through blood protein polymorphism analysis by electrophoresis method. Thirty Arab laying hens (consist of 22 Arab hens Silver and 8 Arab hens Golden) kept in a batteray-pen were used in this research. Whole chickens are grouped in cages with a different temperature, i.e. about 25 oC ambient temperature (21-29 oC) and hot temperatures around 30 oC (24- 32 oC), as well as different distances pubic bone, which is wide, medium and narrow. Individual egg production was recorded until period of 20 days. Blood samples taken from the wing vein and vertical electrophoresis method with acrylamide gel used to analyze the pattern of protein bands of hemoglobin. The result of blood protein analysis identified that the hemoglobin locus was polymorphic and consist of 2 alleles forming 3 genotipes (HbAA, HbAB and HbBB), but in this study did not find HbBB gene. Gene A ( 1) influenced genetically to increase egg production (1.44), whereas gene B ( 2) effected on decrease of egg production (3.36). Type of Arab chicken (Silver and Golden) did not affect the average egg production, but affect the average weight of egg. There was no effect of environmental temperature on the average egg production and weight of egg. The distance between the pubic bone affect the potential for egg production. Widening the distance between the pubic bone will increase egg production. External quality chicken eggs (eggshell integrity) at environment temperature (± 25 oC) is better than at hot temperatures (± 30 oC). Hemoglobin protein polymorphism can be used for biomolecular selection approach in the selection of high producing Arab hens.
Keyword: 

Judul: Studi Polimorfisme Protein Darah dan Karakteristik Genetik Eksternal Ayam Arab Periode Produksi
Abstrak: The aim of this research was to know genetic variance of Arab chickens through blood protein polymorphism analysis by using electrophoresis method. Two loci were analysed, i.e. Transferin (Tf) and Albumin (Alb). Then, this research can be used to study the effect of transferin and albumin loci to egg production characteristic of Arab chickens. In additional, the observation of external genetic characteristic also can used to identify the genetic variation of Arab chickens. A number of 134 Arab chickens were used for the observation of external genetic characteristic, then 30 laying of Arab chicken selected to record the egg production until period of 20 days. The birds were divided into 2 groups based on the cage temperature treatment, i.e. environment temperature (±25 oC) and hot temperature (±30 oC). It’s done to determine the influence of the environment, especially different cage temperature on egg productivity of Arab chicken. Furthermore, blood protein polymorphism analysed by electrophoresis method, and blood sample taken from each chickens.
Keyword: 

Judul: Perencanan Lanskap Sunda Kalapa, Jakarta Utara Sebagai Kawasan W isata Sejarah
Abstrak: Perkembangan kota Jakarta dari waktu ke waktu sangatlah cepat, sehingga menyebabkan kota-kota tua banyak yang tergusur untuk dijadikan daerah baru yang lebih modern. Apabila hal tersebut tidak ditanggulangi secara dini maka keberadaan Kota Lama Jakarta akan hilang. Hal inilah yang melatar belakang untuk dilakukan tindakan perlindungan dan revitalisasi kawasan bersejarah Sunda Kalapa.
Keyword: