Keywords : Spermatozoa

Role of spermatozoa in pH stability of caudal epididymis environment

Saleh W. Mahdi; Mahdi S. Al-Shamary; Zalzala S. Jaafir

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 1, Pages 111-116
DOI: 10.33899/ijvs.2019.125511.1033

50 ram testicles where been collected directly after slaughtering, preserved in cool box (8-10°C) and transferred to the andrological lab at the Veterinary Medicine Collage / University of Baghdad. Samples were washed thoroughly with distal water stripped from surrounding tissues. Epididymis were separated from the entire testicles, caudae were cut out and injected with warm normal saline then sliced, pH was collected daily (4-5 days). Result showed that: as the preservative periods proceed, the pH of caudal secretions is elevated as (6.22, 6.35, 6.45, 6.65, 6.66, 6.7, 6.77) at (24, 36, 48, 60, 72, 84, 96 hrs) while total motility percentage are (90, 85, 84.5, 77, 75, 75, 70%). Cold preservation after slaughtering showed decreased motility as preservation proceed as well as total alive spermatozoa decreased. In conclusion caudal secretion turned to be more acidic if cold preservation time is prolonged and total alive spermatozoa number decreased while dead one increased.

Quality enhancement of cryopreserved spermatozoa of sutchi catfish (Pangasianodon hypophthalmus) with honey addition

N. A. Fanni; M. B. Santanumurti; T. w. Suprayogi; s. s. Bendryman

Iraqi Journal of Veterinary Sciences, 2018, Volume 32, Issue 2, Pages 231-236
DOI: 10.33899/ijvs.2019.153854

Sutchi Catfish is one of the important fish commodities in Indonesia. Unfortunately, its seasonal spawning pattern causes limited supply. Cryopreservation is a solution to solve limited supply since it can store the spermatozoa in low temperature so that physiological, biological and morphological functions still remain. Improving the quality of cryopreservation is important to increase the success of Sutchi Catfish aquaculture. Adding honey in cryopreservation process is expected to increase the quality of spermatozoa since it contains with sugars as a source of spermatozoa’s energy. This study tried to compare the effectivity of honey in cryopreservation process with no addition. The treatments used in this study were T1 (0% honey), T2 (0.2% of honey), T3 (0.4% of honey), T4 (0.6% of honey) and T5 (0.8% of honey). 30 days after stored, the spermatozoa were checked their motility, viability, abnormality, fertility and hatching rate. This study showed that honey addition could increase the motility significantly (P<0.01) to 23.14% better than control. The viability increased significantly (P<0.01) to 23.17% better than control. The abnormality test did not show significant difference between honey addition and control although the abnormality value in control was the highest (10.75%). The fertilization rate increased significantly (P<0.01) to 28.85% better than control. The hatching rate increased significantly (P<0.01) to 29.78% better than control. The success of all test indicated that the addition of honey in cryopreservation process of spermatozoa could be performed on Sutchi Catfish to increase its production even though the limited spawning pattern.