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- 검색키워드
- 저자 : Zhang Quanwei (검색결과 3 건)
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Shi Jinping,Zhang Quanwei,Song Yali,Lei Zhaomin,Fu Lingjuan,Cheng Shuru 아세아·태평양축산학회 2022 Animal Bioscience Vol.35 No.8
Objective: With improvements in living standards and increase in global population, the demand for meat products has been increasing; improved meat production from livestock could effectively meet this demand. In this study, we examined the differences in the muscle traits of different male crossbred sheep and attempted to identify key genes that regulate these traits. Methods: Dubo sheep×small-tailed Han sheep (DP×STH) and Suffolk×small-tailed Han sheep (SFK×STH) were selected to determine meat quality and production performance by Masson staining. Transcriptome sequencing and bioinformatic analysis were performed to identify differentially expressed genes (DEGs) related to meat quality. The presence of DEGs was confirmed by real-time polymerase chain reaction. Results: The production performance of SFK×STH sheep was better than that of DP×STH sheep, but the meat quality of DP×STH sheep was better than that of SFK×STH sheep. The muscle fiber diameter of DP×STH sheep was smaller than that of SFK×STH sheep. Twentytwo DEGs were identified. Among them, four gene ontology terms were related to muscle traits, and three DEGs were related to muscle or muscle fibers. There were no significant differences in the number of single nucleotide mutations and mutation sites in the different male parent cross combinations. Conclusion: This study provides genetic resources for future sheep muscle development and cross-breeding research. Objective: With improvements in living standards and increase in global population, the demand for meat products has been increasing; improved meat production from livestock could effectively meet this demand. In this study, we examined the differences in the muscle traits of different male crossbred sheep and attempted to identify key genes that regulate these traits.Methods: Dubo sheep×small-tailed Han sheep (DP×STH) and Suffolk×small-tailed Han sheep (SFK×STH) were selected to determine meat quality and production performance by Masson staining. Transcriptome sequencing and bioinformatic analysis were performed to identify differentially expressed genes (DEGs) related to meat quality. The presence of DEGs was confirmed by real-time polymerase chain reaction.Results: The production performance of SFK×STH sheep was better than that of DP×STH sheep, but the meat quality of DP×STH sheep was better than that of SFK×STH sheep. The muscle fiber diameter of DP×STH sheep was smaller than that of SFK×STH sheep. Twenty-two DEGs were identified. Among them, four gene ontology terms were related to muscle traits, and three DEGs were related to muscle or muscle fibers. There were no significant differences in the number of single nucleotide mutations and mutation sites in the different male parent cross combinations.Conclusion: This study provides genetic resources for future sheep muscle development and cross-breeding research.
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Zhenhang Kang,Yongpeng Lei,Zhonghua Shi,Quanwei Song,Jifeng Zhang 한국섬유공학회 2022 Fibers and polymers Vol.23 No.12
Co-cured metal/GFRP joints with groove structures can maintain the integrity of GFRP and the continuity of glassfibres. To improve the performance of the groove structure, it is necessary to design groove parameters (groove depth, width,etc.). Due to the repetitive structure of the groove morphology, the representative volume element (RVE) was used to buildthe model. Then, shearing and pulling-out simulations of the groove structures were carried out, and the simulated resultswere compared with the experimental results. In addition, the influence of groove depth and width on the bondingperformance of the structures was studied, and the optimal result was obtained (width: 1.00 mm, depth: 0.75 mm). Finally, the±45 ° groove structure (width: 1.414 mm, depth: 1.00 mm) was equivalent to a 0-thickness cohesive element layer throughthe stiffness equivalent method, and the results were compared with the previous test (DCB and shear test) results, and similarresults were obtained. The equivalent analysis not only verifies the applicability of the stiffness equivalent method but alsoverifies the practicability of the groove structure obtained by the RVE model.
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Zhoucairang Kang,Jinping Shi,Ting Liu,Yong Zhang,Quanwei Zhang,Zhe Liu,Jianfu Wang,Shuru Cheng Asian Australasian Association of Animal Productio 2023 Animal Bioscience Vol.36 No.10
Objective: The study investigated the origin of the Akhal-Teke horse using genome-wide single-nucleotide polymorphism (SNP) data and mitochondrial hypervariable region 1 (HVR-1) nucleotide sequences Methods: Genome-wide SNP data from 22 breeds (481 horses) and mitochondrial HVR-1 sequences from 24 breeds (544 sequences) worldwide to examine the origin of the Akhal-Teke horse. The data were analyzed using principal component analysis, linkage disequilibrium analysis, neighbor-joining dendrograms, and ancestry inference to determine the population relationships, ancestral source, genetic structure, and relationships with other varieties. Results: A close genetic relationship between the Akhal-Teke horse and horses from the Middle East was found. Analysis of mitochondrial HVR-1 sequences showed that there were no shared haplotypes between the Akhal-Teke and Tarpan horses, and the mitochondrial data indicated that the Akhal-Teke horse has not historically expanded its group. Ancestral inference suggested that Arabian and Caspian horses were the likely ancestors of the Akhal-Teke horse. Conclusion: The Akhal-Teke horse originated in the Middle East.
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