Supplementation with MitoTEMPO before cryopreservation improves sperm quality and fertility potential of Piedmontese beef bull semen

被引:5
作者
Elkhawagah, Ahmed R. [1 ]
Ricci, Alessandro [2 ]
Bertero, Alessia [2 ]
Poletto, Mariagrazia Lucia [2 ]
Nervo, Tiziana [2 ]
Donato, Gian Guido [2 ]
Vincenti, Leila [2 ]
Martino, Nicola Antonio [3 ]
机构
[1] Benha Univ, Fac Vet Med, Theriogenol Dept, Banha, Egypt
[2] Univ Turin, Dept Vet Sci, Grugliasco, Italy
[3] Univ Bari Aldo Moro, Dept Biosci Biotechnol & Environm, Bari, Italy
关键词
bull semen; cryopreservation; MitoTEMPO; sperm quality; DNA; mitochondrial activity; in vitro embryo production; MITOCHONDRIA-TARGETED ANTIOXIDANT; OXIDATIVE STRESS; SUPEROXIDE-DISMUTASE; DNA-DAMAGE; TEMPO; MEMBRANE; EXTENDER; SPERMATOZOA; SUBSEQUENT; RAM;
D O I
10.3389/fvets.2024.1376057
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
The purpose of this study was to improve the quality of frozen-thawed Piedmontese bull semen by incorporating MitoTEMPO (MT) in extended semen before cryopreservation. Semen was collected from 4 fertile bulls, using an artificial vagina, once weekly for 6 consecutive weeks. Semen samples were pooled, diluted with Bullxcell (R) extender, and supplemented with different concentrations of MT (0 as control, 5, 10, 20, 40, and 80 mu M) before cooling, equilibration, and freezing procedures. The frozen-thawed semen was assessed for motility, vitality, acrosome intactness, plasma membrane integrity, DNA integrity, apoptosis, mitochondrial membrane potential, intracellular ROS level and in vitro fertilizing capability. The results showed that MT at concentrations of 10, 20, and 40 mu M improved the total, progressive, and rapid motility directly after thawing while, at the highest tested concentration (80 mu M), it decreased the progressive and rapid motility after 1, 2, and 3 h of incubation. The sperm kinetics including STR and LIN were noticeably increased at concentrations of 10, 20, and 40 mu M directly after thawing (0 h), whereas the MT effect was variable on the other sperm kinetics during the different incubation periods. MitoTEMPO improved the sperm vitality at all tested concentrations, while the acrosomal and DNA integrity were improved at 20 mu M and the mitochondrial membrane potentials was increased at 80 mu M. The cleavage and blastocyst formation rates were significantly increased by using semen treated with 20 mu M MT compared with controls. These findings suggest a potential use of MT mainly at a concentration of 20 mu M as an additive in the cryopreservation media of bull semen to improve sperm quality.
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页数:14
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