文献类型： 外文期刊
作者： Chen, Mingming 1 ; Zhao, Yue 1 ; Li, Yao 1 ; Chen, Tiantian 2 ; Zhou, Wendi 1 ; Zhang, Xiaosheng 3 ; Deng, Shoulong 4 ; Xu, Xueling 1 ; Wu, Sujun 1 ; Liu, Zhimei 1 ; Qi, Shiyu 1 ; Wang, Luyu 1 ; Li, Yan 6 ; Yu, Kun 1 ; Lian, Zhengxing 1 ;
作者机构： 1.China Agr Univ, Coll Anim Sci & Technol, Beijing Key Lab Anim Genet Improvement, Natl Engn Lab Anim Breeding,Key Lab Anim Genet & B, Beijing, Peoples R China
2.Nanchang Univ, Affiliated Hosp 1, Dept Oncol, Nanchang, Jiangxi, Peoples R China
3.Tianjin Acad Agr Sci, Inst Anim Husb & Vet Med, Sheep Breeding Innovat Team, Tianjin, Peoples R China
4.Chinese Acad Med Sci & Peking Union Med Coll, Inst Lab Anim Sci, NHC Key Lab Human Dis Comparat Med, Beijing, Peoples R China
5.Peking Union Med Coll, Comparat Med Ctr, Beijing, Peoples R China
6.Acad Mil Med Sci, Lab Anim Ctr, Beijing, Peoples R China
关键词： MSTN; FGF5; sheep; reproduction; visceral; histomorphology
期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.2； 五年影响因子：3.5 ）
ISSN：
年卷期： 2023 年 10 卷
页码：
收录情况： SCI
摘要： IntroductionMyostatin (MSTN) negatively regulates skeletal muscle development. However, its function in reproductive performance and visceral organs has not been thoroughly investigated. Previously, we prepared a MSTN and fibroblast growth factor 5 (FGF5) double-knockout sheep, which was a MSTN and FGF5 dual-gene biallelic homozygous (MF-/-) mutant. MethodsTo understand the role of MSTN and FGF5 in reproductive performance and visceral organs, this study evaluated the ejaculation amount, semen pH, sperm motility, sperm density, acrosome integrity, rate of teratosperm, and seminal plasma biochemical indicators in adult MF-/- rams. We also compared the overall morphology, head, head-neck junction, middle segment and the transection of middle segment of spermatozoa between wildtype (WT) and MF-/- rams. ResultsOur results showed that the seminal plasma biochemical indicators, sperm structure and all sperm indicators were normal, and the fertilization rate also has no significant difference between WT and MF-/- rams, indicating that the MF-/- mutation did not affect the reproductive performance of sheep. Additional analysis evaluated the histomorphology of the visceral organs, digestive system and reproductive system of MF+/- sheep, the F1 generation of MF-/-, at the age of 12 months. There was an increased spleen index, but no significant differences in the organ indexes of heart, liver, lung, kidney and stomach, and no obvious differences in the histomorphology of visceral organs, digestive system and reproductive system in MF+/- compared with WT sheep. No MF+/- sheep were observed to have any pathological features. DiscussionIn summary, the MSTN and FGF5 double-knockout did not affect reproductive performance, visceral organs and digestive system in sheep except for differences previously observed in muscle and fat. The current data provide a reference for further elucidating the application of MSTN and FGF5 double-knockout sheep.
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