CRISPR/Cas9 gene editing technology, as a highly efficient genome editing method, has been extensively employed in the realm of animal husbandry for genetic improvement. With its remarkable efficiency and precision, this technology has revolutionized the field of animal husbandry. Currently, CRISPR/Cas9-based gene knockout, gene knock-in and gene modification techniques are widely employed to achieve precise enhancements in crucial production traits of livestock and poultry species. In this review, we summarize the operational principle and development history of CRISPR/Cas9 technology. Additionally, we highlight the research advancements utilizing this technology in muscle growth and development, fiber growth, milk quality composition, disease resistance breeding, and animal welfare within the livestock and poultry sectors. Our aim is to provide a more comprehensive understanding of the application of CRISPR/Cas9 technology in gene editing for livestock and poultry.
CRISPR/Cas9基因编辑技术作为一种高效的基因组编辑方法，在畜牧业遗传改良领域得到了广泛的应用。该技术以高效、精准的特点，为畜牧业发展带来了一场革命。目前，基于CRISPR/Cas9的基因敲除、基因敲入和基因修饰等已被广泛应用，实现了对畜禽物种的重要生产性状进行精准改良。本文介绍了CRISPR/Cas9技术的工作原理及发展历程，重点介绍了该技术在畜禽肌肉生长发育、绒毛纤维生长、乳品质成分、抗病育种以及动物福利中的研究进展，旨在为更深入地了解CRISPR/Cas9技术在畜禽基因编辑上的应用提供参考。.
Keywords: CRISPR/Cas9; economic traits; gene editing; genetic improvement; livestock and poultry.