Genetic parameters and inbreeding effects for production traits of Thai native chickens.

ABSTRACT:

Objective

Estimate genetic parameters, the rate of inbreeding, and the effect of inbreeding on growth and egg production traits of a Thai native chicken breed Lueng Hang Kao Kabinburi housed under intensive management under a tropical climate.

Methods

Genetic parameters were estimated for weight measured at four weekly intervals from body weight at day 1 (BW1D) to body weight at 24 weeks (BW24) of age, as well as weight at first egg, age at first egg (AFE), egg weight at first egg, and total number of eggs (EN) produced during the first 17 weeks of lay using restricted maximum likelihood. Inbreeding depression was estimated using a linear regression of individual phenotype on inbreeding coefficient.

Results

Direct additive genetic effect was significant for all traits

SUBMITTER: Tongsiri S 

PROVIDER: S-EPMC6601067 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature