China Animal Husbandry & Veterinary Medicine ›› 2026, Vol. 53 ›› Issue (1): 310-316.doi: 10.16431/j.cnki.1671-7236.2026.01.028

• Genetics and Breeding • Previous Articles     Next Articles

Effects of Rutin on the Cryopreservation of Bovine Semen

LIU Hao1(), LU Jiahui1, LIU Hongyu1,2, ZHANG Yunhai1,2, SONG Ning1,2()   

  1. 1.Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Germplasm Innovation,College of Animal Science and Technology,Anhui Agricultural University,Hefei 230036,China
    2.Research Institute of Beef Cattle Industry,Anhui Agricultural University,Hefei 230036,China
  • Received:2025-03-14 Online:2026-01-05 Published:2025-12-26
  • Contact: SONG Ning E-mail:18656358283@163.com;songning@ahau.edu.cn

Abstract:

Objective This study aimed to investigate the effects of adding different concentrations of rutin to the diluent on the cryopreservation of bull semen. Method Semen was collected from three Simmental bulls and three Wagyu bulls using an artificial vagina. Samples with motility >75% were pooled and divided into five groups: A control group without rutin and four treatment groups supplemented with 0.4, 0.8, 1.2 and 1.6 g/L rutin in the diluent. Post-thaw sperm motility and kinematic parameters (including average path velocity, curvilinear velocity, straight-line velocity, wobble, linearity and straightness) were evaluated using a computer-assisted sperm analysis (CASA) system. Sperm malformation rate was assessed by eosin staining. Plasma membrane integrity was determined using the hypo-osmotic swelling test (HOST). Acrosome integrity was examined by peanut agglutinin staining. Reactive oxygen species (ROS) level was measured by fluorescence assay. Antioxidant enzyme activities were also determine using the reagent kit. Result 0.8 g/L rutin group showed significantly higher post-thaw sperm motility, curvilinear velocity, straight-line velocity, wobble, linearity, plasma membrane integrity and acrosome integrity compared with control and other treatment groups (P<0.05), and higher average path velocity and straightness compared with control group (P<0.05). 0.8 g/L rutin group exhibited significantly lower sperm abnormality, ROS levels and malondialdehyde (MDA) content compared with control group (P<0.05). The activities of catalase (CAT) and glutathione peroxidase (GSH-Px) in 0.8 and 1.2 g/L rutin groups were significantly higher than in control group (P<0.05). Total antioxidant capacity (T-AOC) was significantly increased in 0.8 g/L rutin group compared with all other groups (P<0.05), and 1.2 and 1.6 g/L rutin groups also showed significantly higher T-AOC than in control group (P<0.05). Conclusion The addition of 0.8 g/L rutin to the diluent provided the best cryoprotective effects on bull semen, significantly improving post-thaw sperm motility, kinematic performance, plasma membrane and acrosome integrity and antioxidant enzyme activities (T-AOC, GSH-Px and CAT), while significantly reducing sperm abnormality, ROS level and MDA content.

Key words: rutin; semen; cryopreservation; semen quality

CLC Number: