Effect of Apilarnil Addition to Semen Extender on Post-thaw Sperm
Quality Parameters of Rams
Recep Hakkı Koca1*, İbrahim Halil Güngör2,
Serkan Ali Akarsu3, Nida Badıllı2, Aslıhan
Çakır Cihangiroğlu2, Tutku Can Acısu2, Şeyma
Özer Kaya2, Gaffari Türk2, Mustafa Sönmez2
and Seyfettin Gür2
1Bingöl
University, Faculty of Veterinary Medicine, Department of
Reproduction and Artificial Insemination, Bingöl, Turkey; 2Fırat
University, Faculty of Veterinary Medicine, Department of
Reproduction and Artificial Insemination, Elâzığ, Turkey; 3Atatürk
University, Faculty of Veterinary Medicine, Department of
Reproduction and Artificial Insemination, Erzurum, Turkey
*Corresponding author:
rhkoca@bingol.edu.tr
Abstract
Apilarnil is a bee product obtained after the collection of drone larvae aged
3-7 days. It contains water, proteins, carbohydrates, fatty acids, minerals, and
is rich in essential amino acids, antioxidants, as well as reproductive
hormones. It contributes to the maintenance of normal metabolism due to its
amino acids, vitamins, minerals, glycerophosphate calcium and folic acid
contents. This study was designed to investigate the effects of different levels
of apilarnil supplementation to tris-egg yolk glycerol extender on post-thaw
semen quality in 6 Akkaraman rams aged around 2 years. Semen was collected by
artificial vagina and diluted at 37oC using five semen diluents with
or without Apilarnil including 0% (Control), 0.5%, 1.0%, 1.5% and 2.0% apilarnil.
Diluted semen was cooled to 5oC; after glycerolisation and
equilibration, it was frozen in liquid nitrogen, stored at -196oC and
evaluated for post-thaw sperm quality. According to our results, total sperm
motility, progressive sperm motility and curvi-linear velocity (VCL) values were
higher in 0.5, 1.0 and 1.5% apilarnil supplemented groups compared to the
control group (p<0.05). Values for sperm acrosomal damage were decreased in all
apilarnil-containing groups than in the control group (p<0.05). Plasma membrane
integrity was higher in the 0.5, 1.0, and 1.5% apilarnil-containing groups than
in the control group (p<0.05). Malondialdehyde levels were lower in all
apilarnil-treated groups compared to the control group (p<0.05). In conclusion,
supplementation of apilarnil at 0.5, 1.0 and 1.5% to tris-egg yolk glycerol
diluent increased sperm motility and protected plasma membrane integrity and
acrosomal membrane integrity of post-thaw ram spermatozoa.
To Cite This Article:
Koca RH, Güngör IH, Akarsu SA, Badıllı N, Çakır Cihangiroğlu A, Acısu TC, Kaya
SO, Türk G, Sönmez M and Gür S, 2024. Effect of apilarnil addition to semen
extender on post-thaw sperm quality parameters of rams. Pak Vet J.
http://dx.doi.org/10.29261/pakvetj/2024.246