Reproduction Characteristics on Rex, Satin and Reza Rabbit to Selection on Total Body Wheight of Kits at Weaning

Abstract

The study was carried out at Balai Penelitian Ternak Ciawi, Bogor. This research were used secondary data on Rex, Satin and Reza rabbit from 2005 to 2008 on litter size at birth and weaning, litter weight at birth and weaning, mortality and doe performance during the milking period. Data were analyzed using a completely randomized design. Reproduction characteristics was evaluated in every year on 2005, 2006, 2007 and 2008. Fluctuation on reproduction traits showed that selection were very low affected this traits on Rex, Satin and Reza rabbit. Mortality on Rex, Satin and Reza rabbit were 7,78%-23,56%, 6,81%-20,53% and 12,86%-34,51%, respectively. Mortality traits were caused by disease, predators, doe’s milk production and mothering ability. The body weight gain of doe during the milking period were same from 2005 to 2008 data. Reproduction traits were affected by genetic, environment and interaction of genetic and environment, hence appropriate environment were needed to improve genetic of rabbit reproduction.

Kelinci Rex, Satin dan persilangannya (Reza) adalah bangsa kelinci yang dikembangkan sebagai penghasil fur dan daging. Balai Penelitian Ternak sejak tahun 2005 melakukan seleksi pada kelinci Rex, Satin dan Reza yang bertujuan meningkatkan bobot sapih dan pertumbuhannya. Seleksi ini pada akhirnya diharapkan dapat meningkatkan bobot dewasa yang pada gilirannya dapat meningkatkan luasan fur yang dihasilkan sehingga meningkatkan nilai jualnya. Seleksi terhadap pertumbuhan akan berhasil apabila dibarengi dengan evaluasi terhadap sifat reproduksinya. Penelitian ini bertujuan mengevaluasi karakteristik reproduksi pada kelinci Rex, Satin dan Reza meliputi jumlah anak lahir, jumlah anak sapih, total bobot lahir, total bobot sapih, mortalitas anak dan performa induk selama menyusui dari tahun 2005 sampai 2008.