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

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.