Structural Changes of the Gastrocnemius Muscle of Emasculated Native Taiwanese Chickens Using Succinate Dehydrogenase Localization

以玻珀酸去氫酶定位研究台灣土公雞去勢後腓腸肌肌纖維結構之改變

張銘煌(Ming-Huang Chang) ； 陳國隆(Kuo-Lung Chen) ； 羅登源(Dan-Yuang Lo) ； 王建雄(Jiann-Hsiung Wang) ； 任一凡(Yi-Fan Jen) ； 黃士維(Shi-Wei Huang) ； 郭宗甫(Tzong-Fu Kuo)

《臺灣獸醫學雜誌》 30卷1期 (2004/03) Pp. 1-10

https://doi.org/10.7009/TVJ.200403.0001

摘要

The aim of this study was to compare the muscle fiber structural changes of the medial head and lateral head of the gastrocnemius muscle of intact cocks (Group 1), emasculated cocks with testicular tissue remaining (Group 2), emasculated cocks (Group 3), and intact hens (Group 4) of native Taiwanese DL2 chicken using results of succinate dehydrogenase localization studies. The results showed that the gastrocnemius muscle of each group of chickens contained Type-Ⅰ red muscle fibers, Type-ⅡA white muscle fibers and Type-ⅡB white muscle fibers. However, the percentages in each group varied. For the medial head of the gastrocnemius muscle, the ratio of white muscle fibers was higher than that of red muscle fibers. For the lateral head of the gastrocnemius muscle in the group 3, the ratio of white muscle fibers was higher than that of red muscle fibers. After comparing the muscle fiber diameters with the muscle fibers of each type in the medial head of the gastrocnemius muscle, there were no significant differences (P ＞ 0.01) among the four groups. But compared the muscle fiber diameters of the lateral head of the gastrocnemius muscle, type-Ⅰ red muscle fibers and type-ⅡA white muscle fiber of group 2 and group4 were significant differences (P ＜ 0.01). However merely the Type-ⅡB white muscle fiber of the group 2 were significant differences (P ＞ 0.01).

關鍵字

台灣土雞 ； 去勢 ； 腓腸肌 ； 肌纖維型態 ； 琥珀酸去氫酶

並列摘要

The aim of this study was to compare the muscle fiber structural changes of the medial head and lateral head of the gastrocnemius muscle of intact cocks (Group 1), emasculated cocks with testicular tissue remaining (Group 2), emasculated cocks (Group 3), and intact hens (Group 4) of native Taiwanese DL2 chicken using results of succinate dehydrogenase localization studies. The results showed that the gastrocnemius muscle of each group of chickens contained Type-Ⅰ red muscle fibers, Type-ⅡA white muscle fibers and Type-ⅡB white muscle fibers. However, the percentages in each group varied. For the medial head of the gastrocnemius muscle, the ratio of white muscle fibers was higher than that of red muscle fibers. For the lateral head of the gastrocnemius muscle in the group 3, the ratio of white muscle fibers was higher than that of red muscle fibers. After comparing the muscle fiber diameters with the muscle fibers of each type in the medial head of the gastrocnemius muscle, there were no significant differences (P ＞ 0.01) among the four groups. But compared the muscle fiber diameters of the lateral head of the gastrocnemius muscle, type-Ⅰ red muscle fibers and type-ⅡA white muscle fiber of group 2 and group4 were significant differences (P ＜ 0.01). However merely the Type-ⅡB white muscle fiber of the group 2 were significant differences (P ＞ 0.01).

並列關鍵字

Emasculat ion ； Gastrocnemius muscle ； Muscle fiber type ； Native Taiwanese Chicken ； Succinate dehydrogenase