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Vet World. 2010; 3(6): 286-288


Influence of Ovarian Side and Initiation Time of First Aspiration with Relation of Transvaginal Follicular Aspiration in HF x Sahiwal Cows

Suthar, V.S., Shah, R.G., Singh, S.P., Kasiraj, R. and Dhami, A. J..

Abstract
This study was carried out to observe the influence of ovarian side and initiation time of first aspiration during OPU programme in HF X Sahiwal cows. Eight cows were randomly divided in to two groups (A and B) each consisting of 4 donors. Follicular aspiration was initiated on day 4 (first follicular wave) and day 13 (second follicular wave) of estrous cycle, respectively. From group-A donors, total 200 follicles were aspirated in eight sessions with a mean of 6.25 2.05 per animal per session of which 52.50 (105/200) and 47.50 (95/200) per cent follicles were from left and right ovary, respectively. The mean numbers of small, medium and large follicles aspirated were 2.06 0.87, 2.65 0.88 and 1.53 0.91 with the recovery rate of 33.0 (66/200) (3–5 mm), 42.50 (85/200) (6–9 mm) and 24.50 (49/200) (=10 mm) per cent, respectively. From group-B donors, total 179 follicles were aspirated of which 48.60 (87/179) and 51.40 (92/179) per cent follicles were from left and right ovary, respectively. The mean number of aspirated follicles per cow per session from group-B donor cows was 5.59 1.03 and the mean numbers of small, medium and large follicles aspirated 1.87 0.96, 2.5 0.66 and 1.25 0.64 with the recovery rate of 34.07 (61/179), 44.94 (80/179) and 21.22 (38/179) per cent, respectively. The number of follicles from left and right ovaries of different categories among group A and B donor cows did not differ significantly (P>0.05). This study showed that there cows no any influence of ovarian side and initiation time on follicular aspiration.

Key words: Ovary, Transvaginal Follicular Aspiration, Follicle, Reproductive organ.



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