| Autor: |
BORA, N. N., RAO, M. BHIMASENA |
| Zdroj: |
Reproduction; December 1974, Vol. 41 Issue: 2 p257-263, 7p |
| Abstrakt: |
The influence of heteroplasmy on sperm viability and motility in the undiluted semen of two buffalo (Bubalus bubalis) breeds and a Zebu cattle breed (Bos indicus) was studied. In undiluted semen stored at 5±1°C, Zebu bull semen showed poor keeping quality (av. 32·4 hr) compared to Murrah (av. 49·7 hr) and Surti (av. 45·6 hr) buffalo bull semen. Mixed samples of semen from both buffalo breeds had a keeping quality which was intermediate between those of the two breeds av. 47·6 hr). The combination of Murrah buffalo spermatozoa with Zebu bull seminal plasma had the longest keeping quality (64·1 hr). No clumping or agglutination of spermatozoa in the heterospermic or the heteroplasmic treatments was observed at 5±1°C until ±3 motility was reached, indicating that selected heteroplasmy plays an important rôle in the maintenance of sperm viability and motility. Heteroplasmic samples showed a superior conception rate (68%) over control samples extended with egg-yolk citrate (44%). |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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