中国乳业 ›› 2022, Vol. 0 ›› Issue (9): 29-33.doi: 10.12377/1671-4393.22.09.06
李子清1, 黄金明2, 沈立荣3, 石放雄1,*
LI Ziqing1, HUANG Jinming2, SHEN Lirong3, SHI Fangxiong1,*
摘要: 目的 精液冷冻保存作为人工授精不可或缺的一个技术环节,对优质畜禽种群的繁衍和保存有着至关重要的意义。目前,因精液冻存时冻存液成分、冷冻方法和外部氧化应激等因素影响,导致冻存精液品质不一。蜂王浆(RJ)已被证明能提高动物精液品质,蜂王浆主蛋白(MRJPs)作为RJ主要生物活性成分物质,具有多种生物活性和抗氧化能力。方法 为提高冻存精子品质,本研究开展了在公牛精液冻存液中添加不同浓度(0 g/25 mL、0.01 g/25 mL、0.02 g/25 mL、0.03 g/25 mL、0.04 g/25 mL)的MRJPs冻干粉,对冻存48 h后解冻精子的总活力、前进性活力、畸形率等相关参数进行了观察评估。结果 添加MRJPs呈浓度依赖性方式显著降低精子总活力、快速前进性活力、缓慢前进性活力和直行性活力(P<0.05),而且精子畸形率和精子原地移动活力与对照组相比无显著差异(P> 0.05)。结论 精液冻存液中添加MRJPs会抑制冻存精子活力,因此,对MRJPs能以何种方式提高精液品质的研究还需要进一步开展。
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