Abstract: In order to explore the effect of comb upright/pendulous of Jianghan chicken A line on production performance, the observation data, including the comb upright/pendulous, comb thickness and comb height, age and weight at the first egg, and egg number at 40 weeks were recorded. It was found that the frequency of the left and right pendulous of the comb were adjacent, accounting for 1/4 individuals with the upright comb. The statistical results by one-way anova analysis showed that the comb height and comb thickness were to a certain extent, could explain the reason of comb pendulous. Age at the first egg, egg number at 40 weeks have no significant association with the traits of comb upright/pendulous traits. This study shows that in the cage-rearing mode of Jianghan chicken A line, the upright/pendulous of their comb has no effect on their production performance.

Key words: comb, upright/pendulous comb, production performance, Jianhan chicken A line