Plumage colours Stability in Inbreed Pelung Chicken

Hendry T.S.G Saragih,Ayudha B.I Perdamaian,Sadiman Sadiman,Iwan Roosdianto,Budi S Daryono,W.S Nugroho,E.M Nugraha Setyawan,D.A Widiasih,R Widayanti,M Anggita,A Haryanto,E Choiriyah,A.D Wijayanti,V Budiariati,M Arif

doi:10.1051/bioconf/20213301005

Abstract

Pelung is one of the most importance local chicken in Indonesia. Genetic introgression and inbreeding depression were the major threat for local chicken gene pool. The objective of this research was to investigate the effect of serial inbreeding mating to plumage colours of Pelung chicken. Pure Pelung chicken which purchased from Cianjur sub-district was undergo full-sib mating through five generation. All offspring phenotypes was recorded. The results show gradual plumage phenotype change of inbreed Pelung chicken. Initially, adult male chicken had Black-red coloured as wildtype (WT) shifted to partridge and black-silver coloured in later generations. The current findings indicating that inbreeding made recessive traits to be expressed which some of them might had deleterious effect. Random mating should be maintained to preserve genetics stability of Pelung chicken

Highlights

Indonesia is among world’s largest chicken breeds biodiversity spot
In Indonesia, exotic chicken both commercial lines and ornamental breeds are sold freely. These made both genetics introgression and inbreeding depression are the major threads for native Indonesian chicken breeds
Crossbreeding of layer chicken to Bangkok chicken for derived meat-type chicken [10] is massively practiced in Indonesia

Summary

Introduction

Indonesia is among world’s largest chicken breeds biodiversity spot. Indonesia has 25 local breeds where Cemani [1], Sumatra [2], Kedu [2], Bantam/Kate [3], Nunukan [4], and Pelung [5,6,7,8] are the most studied breeds. In Indonesia, exotic chicken both commercial lines (broiler and layer) and ornamental breeds are sold freely. These made both genetics introgression and inbreeding depression are the major threads for native Indonesian chicken breeds. Uncontrolled interbreeding threats the genetics identity of local breed. Whole genome sequencing shows the lost genetics identity of Black Sumatra and Black Java chicken breeds in US [2]. Introgression of broiler chicken into local chicken was found in China [9]. Male layer chicken sold as meat-type chicken. These actions increase the possibility of stock leaks to rural areas and mating to pure breeds decreasing population size of local breeds. Hybrid chicken might transmit pathogen to local breed as well

Objectives

Methods

Discussion

Conclusion