文献类型： 外文期刊

作者： Zeng, Y. T. ¹ ; Wang, C. ¹ ; Zhang, Y. ¹ ; Xu, L. ¹ ; Zhou, G. B. ¹ ; Zeng, C. J. ¹ ; Zuo, Z. C. ³ ; Song, T. Z. ⁴ ; Zhu, Q. ¹ ;

作者机构： 1.Sichuan Agr Univ, Farm Anim Genet Resources Explorat & Innovat Key, Chengdu 611130, Peoples R China

2.Sichuan Agr Univ, Coll Anim Sci & Technol, Chengdu 611130, Peoples R China

3.Sichuan Agr Univ, Coll Anim Vet Med, Chengdu 611130, Peoples R China

4.Tibet Acad Agr & Anim Husb Sci, Inst Anim Sci, Lhasa 850009, Peoples R China

关键词： immunocastration; muscle development; Improvac; broiler chicken; fiber type

期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）

ISSN：

年卷期： 2020 年 99 卷 10 期

页码：

收录情况： SCI

摘要： Improvac has been tentatively used to immune-castrate roosters. The aim of this study was to investigate whether Improvac affected skeletal muscle development in chickens. The muscle fiber type and size and the expression levels of genes related to muscle development in pectoral and thigh muscles were examined at 5, 9, and 14 wk of age in the control, early, late, and early 1 late Improvac-treated groups. Immunocastration with Improvac affected the development of thigh muscles and the expression of MYH1B, MSTN, and SM. The cross-sectional area in the early group was significantly larger than in the control group at the 14th week (P < 0.01). At the fifth week, the expression levels of MYH1B, MYOD, and MSTN in the early group were significantly higher than those in the control group (P < 0.05), and at the ninth week, the expression level of SM1 in the control group was significantly lower than that in early and late groups (P < 0.05). Immunocastration did not affect pectoral muscle development or the expression of genes related to muscle development.