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Mujitaba MA, Kútvölgyi G, Radnai Szentpáli J, Debnár VJ, Tokár A, Vass N, Bodó S. The Influence of Three Commercial Soy Lecithin-Based Semen Extenders and Two Spermatozoa Concentrations on the Quality of Pre-Freeze and Post-Thaw Ram Epididymal Spermatozoa. Animals (Basel) 2024; 14:1237. [PMID: 38672385 PMCID: PMC11047534 DOI: 10.3390/ani14081237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
There are limited studies on the factors affecting the success of ram epididymal spermatozoa (REPS) cryopreservation. On this note, the current study assessed the influence of three commercial soy lecithin-based semen extenders, AndroMed® (AND), BioXcell® (BIO), and OviXcell® (OVI), and two concentrations (400 × 106 vs. 200 × 106 spermatozoa/mL) on the pre-freeze and post-thaw quality of REPS. The REPS were retrieved from nine adult rams' testes and diluted with each of the three extenders to both concentrations. Straws were frozen manually. Standard motility (SMP) and kinematic parameters (KPs) were assessed via a CASA, while spermatozoa viability, morphology, and acrosomal integrity were assessed via the Kovács-Foote staining technique. The concentration did not significantly affect the pre-freeze and post-thaw SMP and KPs of REPS. BIO and OVI had significantly higher pre-freeze and post-thaw BCFs, post-thaw VAP, and the percentage of all intact heads than AND. In contrast, AND had a significantly lower percentage of REPS with tail defects than BIO and OVI. The 400 × 106 spermatozoa/mL concentration resulted in a significantly higher percentage of all intact heads than the 200 × 106 spermatozoa/mL concentration. Freezing significantly increased tail defects and decreased the percentage of REPS with distal cytoplasmic droplets. The cryopreservation of REPS at the 400 × 106 spermatozoa/mL concentration is recommended. All three extenders must be optimized to preserve the viability, membrane integrity, and better normal morphology of REPS; the reason for increased tail abnormality after the freezing/thawing process needs to be studied.
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Affiliation(s)
- Malam Abulbashar Mujitaba
- Department of Animal Nutrition and Physiology, Faculty of Agriculture and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, H-4032 Debrecen, Hungary; (M.A.M.); (N.V.)
- Doctoral School of Animal Science, University of Debrecen, H-4032 Debrecen, Hungary
| | - Gabriella Kútvölgyi
- Department of Precision Livestock Farming and Animal Biotechnics, Institute of Animal Sciences, Hungarian University of Agriculture and Life Sciences, Kaposvár Campus, Guba Sándor Street 40, H-7400 Kaposvár, Hungary; (V.J.D.); (S.B.)
| | - Judit Radnai Szentpáli
- Institute of Horticultural Science, Hungarian University of Agriculture and Life Sciences, Buda Campus, Villányi Street 29-43, H-1118 Budapest, Hungary;
| | - Viktória Johanna Debnár
- Department of Precision Livestock Farming and Animal Biotechnics, Institute of Animal Sciences, Hungarian University of Agriculture and Life Sciences, Kaposvár Campus, Guba Sándor Street 40, H-7400 Kaposvár, Hungary; (V.J.D.); (S.B.)
| | - Alexandra Tokár
- Festetics György Doctoral School, Hungarian University of Agriculture and Life Sciences, Deák Ferenc Street 16, H-8360 Keszthely, Hungary;
| | - Nóra Vass
- Department of Animal Nutrition and Physiology, Faculty of Agriculture and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, H-4032 Debrecen, Hungary; (M.A.M.); (N.V.)
| | - Szilárd Bodó
- Department of Precision Livestock Farming and Animal Biotechnics, Institute of Animal Sciences, Hungarian University of Agriculture and Life Sciences, Kaposvár Campus, Guba Sándor Street 40, H-7400 Kaposvár, Hungary; (V.J.D.); (S.B.)
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Lago-Alvarez Y, Podico G, Segabinazzi LG, Cunha LL, Barbosa L, Arnold CE, Lima FS, King LT, McLean AK, Canisso IF. Donkey Epididymal Transport for Semen Cooling and Freezing. Animals (Basel) 2020; 10:ani10122209. [PMID: 33255737 PMCID: PMC7759917 DOI: 10.3390/ani10122209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/13/2020] [Accepted: 11/17/2020] [Indexed: 12/22/2022] Open
Abstract
Simple Summary In the event of death, euthanasia, or forceful castration for medical reasons, epididymal semen harvesting represents the last opportunity to preserve the genetic material of valuable sires. However, this technique has yet to be tested in donkeys. Three experiments were carried out to assess epididymal semen cooling and freezing in donkeys. In experiment 1, semen cooling and freezing were conducted immediately after castration, and in experiments 2 and 3, epididymides were shipped overnight, and then epididymal semen cooled and frozen. Results showed that cooling of epididymal semen up to 24 h after harvesting did not affect motility parameters or plasma membrane integrity. Collectively, the post-thaw results revealed low motility parameters across groups; At the same time, the plasma membrane integrity did not reflect this trend, and the values remained high, suggesting that there was a lack of epididymal sperm activation after freezing. In summary, freshly harvested and cooled-shipped epididymal donkey semen had satisfactory semen parameters. New studies need to address donkey epididymal semen fertility in mares and jennies. Abstract The objectives of this study were to assess the cooling and freezing of donkey epididymal semen harvested immediately after castration (Experiment 1, n = 4) or after the shipment (24 or 48 h) of epididymides attached to testicles (Experiment 2, n = 14) or dissected apart (Experiment 3, n = 36). In each experiment, semen was frozen immediately (Non-Centrif) in an egg yolk-based semen extender (EY) or after processing through cushion-centrifugation (Centrif) while extended in a skim milk-based extender (SC). In all three experiments, cooled, pre-freeze, and post-thaw epididymal semen was assessed for total motility (TM), progressive motility (PM), plasma membrane integrity (PMI), and high mitochondrial membrane potential (HMMP). Data were analyzed with R using mixed models and Tukey’s test as posthoc. Results showed that the cooling of epididymal semen up to 24 h after harvesting did not affect motility parameters or plasma membrane integrity; furthermore, in Experiment 3, the post-thaw evaluation of both Centrif and Non-Centrif achieved similar TM and PM. Collectively, the post-thaw results revealed low motility parameters across groups; while, the PMI and HMMP did not reflect this trend, and the values remained high, suggesting that there was a lack of epididymal sperm activation with either centrifugation or extenders. In summary, freshly harvested and cooled-shipped and cooled semen had satisfactory semen parameters. Future studies need to address donkey epididymal semen fertility in mares and jennies.
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Affiliation(s)
- Yamilka Lago-Alvarez
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
| | - Giorgia Podico
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
| | - Lorenzo G. Segabinazzi
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
| | - Lais L. Cunha
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
| | - Leonardo Barbosa
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
| | - Carolyn E. Arnold
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77840, USA;
| | - Fabio S. Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
| | - Luise T. King
- Department of Veterinary Clinical Medicine, University of Arizona, Oro Valley, AZ 85704, USA;
| | - Amy K. McLean
- Department of Animal Sciences, University of California, Davis, CA 95161, USA;
| | - Igor F. Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL 61801, USA; (Y.L.-A.); (G.P.); (L.G.S.); (L.L.C.); (L.B.); (F.S.L.)
- Correspondence:
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