Productive performance of purebred Thai native black-bone chickens (Chee Fah and Fah Luang) and their crossbreds

Abstract

This study was conducted to compare productive performance between purebred Thai indigenous black-bone chickens and their reciprocal crossbreds. Four different genetic groups were studied: 2 purebreds (Chee Fah and Fah Luang) and 2 crossbreds (Chee Fah ´ Fah Luang and Fah Luang ´ Chee Fah). The results showed that Fah Luang ´ Chee Fah had the significantly highest body weight at birth and 20-week of age, while the lowest values were found in Chee Fah ´ Fah Luang (p less than 0.05). For feed conversion ratio, Fah Luang ´ Chee Fah had greater potential than purebreds and Chee Fah ´ Fah Luang (p less than 0.05). Additionally, Fah Luang ´ Chee Fah grew faster than the others (p less than 0.05). The productive performance of crossbred chickens was more favorable than purebreds. Considering crossbreds, Fah Luang ´ Chee Fah showed greater performance than Chee Fah ´ Fah Luang. Therefore, Fah Luang had more potential for using as a sire than Chee Fah.

Research Note: Possible influence of thermal selection on patterns of HSP70 and HSP90 gene polymorphisms in Thai indigenous and local chicken breeds and red junglefowls

“…Several strategies can be implemented to mitigate the adverse effects of thermal stress on chicken productivity, such as surveys of adaptive genetic diversity, genetic selection, environmental control, and nutritional interventions. Indigenous and local breeds are widely crossbred with commercial chickens to obtain hybrids that are resistant to tropical conditions and produce significant quantities of eggs and meat ( Laenoi and Buranawit, 2019 ). When within-breed genetic variations involved in thermotolerance are found in chicken populations, they improve the thermotolerance of chickens by genetic selection, which may enhance their resilience to thermal stress and contribute to improving their welfare.…”

“…Thai indigenous chickens derived from red junglefowls have adapted to Thailand's tropical conditions, exhibiting high-temperature tolerance, disease resistance, and low mortality rates ( Laenoi and Buranawit, 2019 ). They provide valuable genetic resources for improving chicken production in environments exposed to thermal stress and serve as models for understanding the genetic basis of thermotolerance by studying the correlation between genotypes and temperature-adaptive traits.…”