Heritability Estimate for Antibody Response to Vaccination and Survival to a Newcastle Disease Infection of Native chicken in a Low-Input Production System

The Newcastle disease virus (NDV) is the deadliest chicken pathogen in low-input village poultry, and selecting for NDV resistance has been recommended as a sustainable strategy in backyard poultry production systems. However, selecting for disease resistance needs precision data from either a big p...

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Bibliographic Details
Published in:Frontiers in genetics 2021-09, Vol.12, p.666947-666947
Main Authors: Hako Touko, Blaise Arnaud, Kong Mbiydzenyuy, Anold Tatah, Tumasang, Tebug Thomas, Awah-Ndukum, Julius
Format: Article
Language:English
Subjects:
Genetics
heritability
native chicken
Newcastle disease
resistance
selection
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Summary:The Newcastle disease virus (NDV) is the deadliest chicken pathogen in low-input village poultry, and selecting for NDV resistance has been recommended as a sustainable strategy in backyard poultry production systems. However, selecting for disease resistance needs precision data from either a big population sample size or on many generations with good pedigree records for effective prediction of heritability ( h 2 ) and breeding values of the foundation stock. Such conditions are almost impossible to meet in low-input backyard production systems. This study aimed at proposing a realistic method for estimating the heritability of the immune response to vaccination and survival of NDV infection in village poultry production to inform a breeding strategy for ND resistance in Cameroon. A 1 and 3% selection intensity of cocks and hens for higher antibody (ab) response (ABR) to vaccination followed by progeny selection of chickens who survived an experimental NDV infection was conducted from an initial population of 1,702 chickens. The selection induced an increase of 1012.47units/ml ( p
ISSN:1664-8021
1664-8021
DOI:10.3389/fgene.2021.666947