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International Journal of Morphology

versión On-line ISSN 0717-9502

Resumen

OYEYEMI, Matthew Olugbenga  y  UBIOGORO, Oniovosa. Spermiogram and Morphological Characteristics in Testicular and Epididymal Spermatozoa of Large White Boar in Nigeria. Int. J. Morphol. [online]. 2005, vol.23, n.3, pp. 235-239. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022005000300008.

Ten healthy male (boar) of large white pigs aged between 6.0 and 18.0 months, were used for this study. Spermiogram and morphological characteristics were studied in testes and in the different parts of the epididymis of the boar. The objective was to study the changes that occur in testes and epididymis during epididymal transit. Progressive motile spermatozoa were first observed in the testes (6-10%) in the caput (20-30%), corpus (40-50%) and highest at the caudal epididymis (85%). Cytoplasmic droplets were lost as the spermatozoa moved up the epididymis. The caput epididymis had a value of 20.05% of abnormal sperm cell, which is different significantly (p<0.5) from 15 ­ 80 % of the caudal epididymis. The total abnormal sperm cells in corpus are also higher than in the caudal epididymis Percentage motility was 0.6 ± 2.0 % in the testis, which was lower (P< 0.5) than in caput with 23.0 ± 5.0%. This motility increases from caput to caudal epididymis. The caput epididymis also had 0.20% of spermatozoa with small head, which differed significantly (p<0.05) from corpus (0.05%) and the caudal (0.00%). The testicular and epididymal parameters were positively correlated (weight of testis and epididymis; weight of testis, scrotal circumference, testicular circumference, weight of epididymis and weight of testis (p<0.05), except the correlation values between testes and epididymis circumference (TEC) and other parameters (p<0.01)

Palabras llave : Spermiogram; Boar; Spermatozoa; Motility.

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