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Effect of Age on some Testes Measurements and Semen Characteristic in Slaughtered local Iraqi Bull | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 12, Issue 1, 2012, Pages 27-32 | ||
| Author | ||
| Fatima Juma Azgar | ||
| Abstract | ||
| Abstract: The study conducted on (20) bull aged 6to more than 30 months .Slaughtered bull divided in to the following age groups of 4 bull per each group .The aim of the study is to determine the age effect on testes measurements Characteristic (weight ,length and diameter)and semen Characteristic (sperm concentration ,died-live sperm and sperm abnormalities )of both right and left testes.The results showed that the age effect on testes weight was non significant ,while the differences between1th,4 th and 5 th age groups were highly significant(P<0.05)in both testes length and diameter ,but the differences between 2nd and 3rd age groups lacked significant .Significant differences (P<0.05)observed between 1st ,2nd ,3rd ,4th and 5th age group in sperm concentration as well as in died-live sperm and sperm abnormalities.The differences in anatomical characters and semen Characteristic between right and left testes lacked significant .The result showed that testes weight ,length ,diameter as well sperm concentration increased with bull age while died-live sperm and sperm abnormalities decreased with bull age . | ||
| Keywords | ||
| Age; testes; Semen Characteristic | ||
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