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Silva NC, Leão KM, Pádua JT, Marques TC, Neto FRA, Dode MAN, Cunha ATM. Effect of different cryopreservation extenders added with antioxidants on semen quality and in vitro embryo production efficiency in cattle. AN ACAD BRAS CIENC 2021; 93:e20191229. [PMID: 34076181 DOI: 10.1590/0001-3765202120191229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 06/07/2020] [Indexed: 11/22/2022] Open
Abstract
To evaluate the addition of antioxidants in extenders on post-thaw bovine semen quality and in vitro embryo production efficiency. Six semen samples were collected from five Holstein bulls. In the experiment I, the samples were diluted with AndroMed® and Bovimix® and added antioxidants glutathione (1.5 and 2.5 mM) and melatonin (0.5 and 1.0 mM). In the experiment II, the best treatments obtained in experiment I were used for in vitro fecundation. Glutathione did not improve sperm viability. Melatonin had a negative effect on semen characteristics. Andromed® showed better results in sperm kinetics parameters. Bovimix® was more efficient in maintaining cell integrity parameters. Significant correlation was found between sperm kinetics parameters and between cell integrity parameters. For in vitro embryo production, after oocyte selection, maturation, fertilization and cultivation were performed using the four treatments previously evaluated. Andromed® was more efficient in the cleavage rate, no effect of the addition of glutathione. However, the addition of 2.5 mM glutathione in the Bovimix® improved the cleavage rate. There was a significant moderate correlation between cleavage rate and sperm kinetic characteristics. Glutathione did not improve sperm viability. Melatonin reduced the maintenance of sperm characteristics. Andromed® was more efficient in in vitro embryo production and no effect of glutathione was found in this extender. Addition of 2.5 mM glutathione in the Bovimix® extender provided a higher cleavage rate.
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Affiliation(s)
- Natalia C Silva
- Universidade Federal de Goiás, Escola de Veterinária e Zootecnia, Rua Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Karen M Leão
- Instituto Federal Goiano, Rua Sul Goiânia, Km 01, Zona Rural, 75901-970 Rio Verde, GO, Brazil
| | - João T Pádua
- Universidade Federal de Goiás, Escola de Veterinária e Zootecnia, Rua Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Thaisa C Marques
- Instituto Federal Goiano, Rua Sul Goiânia, Km 01, Zona Rural, 75901-970 Rio Verde, GO, Brazil
| | - Francisco R A Neto
- Instituto Federal Goiano, Rua Sul Goiânia, Km 01, Zona Rural, 75901-970 Rio Verde, GO, Brazil
| | - Margot A N Dode
- Universidade de Brasília, Instituto de Biologia, Campus Universitário Darcy Ribeiro, s/n, Asa Norte, 70910-900 Brasília, DF, Brazil
| | - Andrielle T M Cunha
- Universidade de Brasília, Instituto de Biologia, Campus Universitário Darcy Ribeiro, s/n, Asa Norte, 70910-900 Brasília, DF, Brazil
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