Upaya peningkatan produktivitas kambing lokal Indonesia dapat dilakukan dengan crossbreeding (persilangan) yang memanfaatkan efek heterosis atau hybrid vigor(HV). Saat ini, kambing Boer telah banyak disilangkan dengan kambing Jawarandu untuk membentuk silangan kambing pedaging bernama Boerja.Penelitian ini bertujuan mengetahui nilai HV hasil persilangan kambing Boer dan Jawarandurelatifterhadap rerata kedua tetua (parents average)dan terhadap tetua betinanya. Sebanyak 504 data bobot badan (BB) yang berasal dari pejantan Boer (n = 6), betina Jawarandu (n = 15), Boerja (Boer × Jawarandu) F1 (n = 298), Boerja F2 (n = 167) dan Boerja F3(n = 18) digunakan untuk analisis dalam penelitian ini. Metode persilangan dilakukan secara backcross, yaitu Boerja F2 didapatkan dari Boer (♂)× Boerja F1 (♀), sedangkan Boerja F3 dihasilkan dari Boer (♂) × Boerja F2 (♀).Rerata dan simpangan baku BB kambing Boer,
This study was aimed to predict heterozygosity related to body weight (BW) trait from simulation of allele frequency changes in five crossbreeding scenario of Indonesian goat breed, namely Indonesian goat called Jawarandu (Etawah grade ♂ >< Kacang ♀), Boer (Boer ♂ >< Boer ♀), Boerja F1 (Boer ♂ >< Jawarandu ♀), Boerja F2 (Boer ♂ >< Boerja F1♀) and Boerja F3 (Boer ♂ >< Boerja F2 ♀). Allele frequency simulation was conducted, the heterozygosity were estimated and the associations to observed BW were measured from corresponding goat samples. BW (kg) data was retrieved from 1.5-year-old goats from the studied samples. In this study, allele that control BW trait was coded as “B” for high and “b” for low BW. The initial allele frequencies in Jawarandu were set as (B=0.45; b=0.55) and in Boer were (B=0.7; b=0.3). The simulation resulted in allele frequency in Boerja F1 were (B=0.57; b=0.43), F2 (B=0.64; b=0.36) and F3 (B=0.67; b=0.33). The estimated heterozygosity values were 0.54 0.42; 0.52; 0.47 and 0.44 in Jawarandu, Boer, F1, F2 and F3 respectively. Whereas the respective average of observed BW was 30.50±4.50; 49.50±5.90; 41.80±4.10; 41.60±3.60; and 39.80±3.20 kg. We confirmed that crossbreeding changes the heterozygosity in our simulation study.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.