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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2014 > Volume 13 Number 6 > Rusfidra, S. Dt. Tan Marajo, Y. Heryandi and B. Oktaveriza

Estimation of Inbreeding Rate in Kokok balenggek Chicken (KBC) Population under Ex-Situ Conservation

Rusfidra, S. Dt. Tan Marajo, Y. Heryandi and B. Oktaveriza
Faculty of Animal Science, Andalas University, Kampus Limau Manis, Padang, West Sumatera-25163, Indonesia
Abstract :

A survey was carried out in "Kinantan Bagombak" Breeding Farm (KBBF) in Solok City Indonesia to estimate inbreeding rate on Kokok balenggek chicken (KBC). Estimation of inbreeding rate in a small and limited population of local chickens is very important to prevent inbreeding depression. KBC is a poultry genetic resource known as song fowl from West Sumatera Province, Indonesia. This research was aimed to calculate flock composition, effective population size (Ne) and inbreeding rate ( F) in KBC under ex-situ population. Census was the main research method. The results showed that total number of KBC at KBBF was 528 heads. Chicken flock composition of KBC was chick (31.63%), chicken grower (27.65%) and adult chicken (40.72%). Number of breeding males (Nm) was 54 heads and females (Nf) was 161 heads. Male and female ratio (Nm/Nf) was 1:3 (33.54%). Effective population size (Ne) was 162 heads. The rate of inbreeding ( F) calculated for the indigenous KBC flock considering the existing flock size and management practice was 0.0031 (0.31%) indicating that the population is not at the risk of extinction. It is concluded that inbreeding depression in KBC population at KBBF was not occurred.

Keywords :
Kokok balenggek chicken, inbreeding rate, effective population size, Solok-Indonesia

Date Deposited : 24 Mar 2015 10:00

Last Modified : 24 Mar 2015 10:00

Official URL:

Volume 13, Number 6, - 2014 , ISSN 1682-8356

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