Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2006 / Cilt: 53 - Sayı: 3

Effects of different taurine doses and freezing rate on freezing of ram semen

Farklı taurin dozlarının ve dondurma hızının koç spermasının dondurulması üzerine etkileri

Pages
179–184
Publication Date
2022-10-12
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the obtained results, it was determined that different taurine doses and cooling rates did not showed significant differences as statistically in the cryopreservation of ram semen.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, it was aimed to investigate of effects of different doses antioxidant (taurine) added to extender and various cooling rates on some spermatological parameters during freezing and thawing of ram ejaculates.Ejaculates collected by artificial vagina from 3 rams (Akkaraman, Sakız, Ramlıç) were used in the study.
📊
Key Findings & Data:Samples were extended with Tris extender containing 4 % glycerol and different taurine doses (20, 50 ve 80 mM).
💡
Conclusion & Impact:According to the obtained results, it was determined that different taurine doses and cooling rates did not showed significant differences as statistically in the cryopreservation of ram semen.
🔬Design:Lab & Field Experiment
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, it was aimed to investigate of effects of different doses antioxidant (taurine) added to extender and various cooling rates on some spermatological parameters during freezing and thawing of ram ejaculates.Ejaculates collected by artificial vagina from 3 rams (Akkaraman, Sakız, Ramlıç) were used in the study. Ejaculates collected double ejeculation, determined principle spermatological properties and having/with normospermie quality were pooled. Samples were evaluated as split ejeculate in the experiment and control groups. Samples were extended with Tris extender containing 4 % glycerol and different taurine doses (20, 50 ve 80 mM). It was also formed control group that is not contain taurine. After dilution and dose processing, samples withdrawed to 0.25ml straws were frozen in programmable and automatic freezer at different cooling rates (I- 15 °C/min; II- 10 °C/min; III- 5 °C/min).Frozen semen were thawed in a water bath at 40 2C for 10 seconds. According to post-thawing assessing, in the semen which was diluted with tris diluent containing 20, 50, 80 mM taurine and without taurine (control) groups, the sperm motility values were recorded as 38.7, 31.1, 26.5 and 34.4 % respectively. The percentages of abnormal spermatozoa were found 18.7, 18.4, 17.0, and 19.0 %, the percentage of dead spermatozoa were determined 52.2, 60.3, 61.5 and 54.7 % respectively. In I, II and III groups of cooling rates, post-thawing sperm motility values were determined 30.0, 33.1, 32.0 %, the percentages of abnormal spermatozoa were found 17.7, 17.7, 23.0 % and the percentages of dead spermatozoa were recorded as 62.0, 54.0, 56.8 % respectively. According to the obtained results, it was determined that different taurine doses and cooling rates did not showed significant differences as statistically in the cryopreservation of ram semen.

Özet

Çalışmada koç ejakülatlarınm dondurulması ve çözdürülmesi sürecinde sperma sulandırıcısına katılan farklı dozlarda antioksidan (taurin) ile değişik hızlarda soğutmanın başlıca spermatolojik değerler üzerine etkilerinin araştırılması amaçlanmıştır. Araştırmada toplam 3 koçtan (Akkaraman, Sakız, Ramlıç) sun'i vagina ile alınan ejekülatlar kullanılmıştır. Çift ejekülat olarak alınan ve başlıca spermatolojik özellikleri belirlenen normospermi kalitesindeki ejekülatlar birleştirilerek kullanılmıştır. Araştırma ve kontrol gruplarında spermalar split ejekülat biçiminde değerlendirilmiştir. Spermaların sulandırılması ve dozlanması farklı taurin dozları (20, 50 ve 80 mM) ve % 4 glyserol içeren Tris ana sulandırıcısı ile yapılmıştır. Ayrıca taurin içermeyen kontrol grubu da oluşturulmuştur. Sulandırma ve dozlama işlemleri sonrasında 0.25 mi lik payetlere çekilen spermalar otomatik ve programlanabilir aletle farklı soğutma hızlarında (I- 15 °C/dak; II-10 °C/dak; III- 5 °C /dak) dondurulmuştur. Dondurulan spermalar su banyosunda 40°C de 10 saniye tutularak çözdürülmüşlerdir. Çözdürme sonrası yapılan değerlendirmelere göre, sulandırıcıda 20, 50 ve 80 mM taurin içeren ve taurin içermeyen (kontrol) gruplarda spermatozoa motilitesi sırasıyla % 38.7, 31.1, 26.5 ve 34.4 kaydedilmiştir. Anormal spermatozoa oranı % 18.7, 18.4, 17.0 ve 19.0 bulunurken, ölü spermatozoa oranı % 52.2, 60.3, 61.5 ve 54.7 saptanmıştır. Soğutma hızı gruplarında (I, II ve III), çözdürme sonrası spermatozoa motilitesi % 30.0, 33.1 ve 32.0; anormal spermatozoa oranı % 17.7, 17.7 ve 23.0 ve ölü spermatozoa oranı % 62.0, 54.0 ve 56.8 olarak saptanmıştır. Çalışmadan elde edilen bulgulara göre, koç spermasının dondurulmasında farklı taurin dozlarının ve dondurma hızlarının istatistik değerlendirmede önemli farklılıklar göstermediği belirlenmiştir.

🔖

Cite This Article

YAVAŞ, İ., AKÇAY, E., TEKİN, N., UYSAL, O. (2022). Effects of different taurine doses and freezing rate on freezing of ram semen. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 53 - Sayı: 3, 179–184. https://ajindex.com/articles/445171

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (15)

  1. Anel L, Paz P, Alvarez M, Chamorro CA, Boixo JC, Manso A, Gonzalez M, Kaabi M Anel E (2003): Field and in vitro assay of three methods for freezing ram semen. Theriogenology, 60,1293-1308
  2. Ayar A, Akdeniz C (1995): Ankara keçilerinde dondurulmuş sperma kullanılarak intrauterin ve intraservikal tohumlama uygulamaları. Lalahan Hay Araş Ens Derg, 35, 79-86
  3. Byrne GP, Lonergan P, Wade MJ, Duffy P, Donovan A, Hanrahan JP, Boland MP (2000): Effect of freezing rate of ram spermatozoa on subsequent fertility in vivo and in vitro. Anim Reprod Sci, 62, 265-275
  4. Curry MR (2000): Cryopreservation of semen from domestic livestock. Revs Reprod 5, 46-52
  5. Curry MR, Millar JD, Watson PF (1994): Calculated optimal cooling rates for ram and human sperm cryopreservation fail to conform with empirical results. Biol. Reprod. 51,1014-1021
  6. Dziuk PT, Lewis JM, Graham EF, Moyer RH (1972): Comparison between natural service and artificial insemination with fresh or frozen sperm at an appointed time in the ewe. J Anim Sci, 35, 572-575
  7. Fiser PS, Fairfull RW (1984): The effect of glycerol concentration and cooling velocity on cryosurvival of ram spermatozoa frozen in straws. Cryobiology, 21, 542-551
  8. Fitzgerald JA, Stellflug JN (1991): Effects of melatonin on seasonal changes in reproduction of rams. J Anim Sci, 69, 264-275
  9. Kobayashi T, Miyasaki T, Natori M, Nozawa S, (1991): Protective role of superoxide dismutase in human sperm motility: superoxide dismutase activity and lipid peroxidase in human seminal plasma and spermatooza. Hum Reprod, 6, 987-991
  10. Kumar S, Millar JD, Watson PF (2003): The effect of cooling rate on the survival of cryopreserved bull, ram and boar spermatozoa: a comparison of two controlled-rate cooling machines. Cryobiology, 46, 246-253
  11. Mazur P (1990): Equilibrium, quasi-equilibrium, and non-equilibrium freezing of mammalian embryos. Cell Biophys 17, 53-92
  12. Milovano, VK, Sokolovskaya II (1980): Long-term storage of ram semen and new possibilities of large scala se¬lection in sheep breeding. Vestnik Selskok Nauki, 12, 122-132
  13. Molinia FC, Evam G, Maxwell WM (1996): Fertility of ram spermatozoa pellet frozen in zwitterion buffered dilu¬ents. Reprod Nutr Dev, 36, 21-29
  14. Ola, TT, Bowen RA, Picket BW (1989): Influence of extender, cryopreservative and seminal processing procedures on post-thaw motility of canine spermatozoa frozen in straws. Theriogenology, 31, 451-461
  15. O'Neill DJ (1998): Studies on the Cryopreserv