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Abstract

Bull and boar spermatozoa were analysed using a computer-controlled videomicrographic system. The number of spermatozoa required for estimation of motility, velocity and min. velocity when in circular motion was 5, 6 and 18 resp. in both bull and boar semen; the number required to estimate the max. ...

Author(s)
Rath, D.; Armbrecht, S.; Schaap, P.; Weitze, K. F.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 288, pp 3pp.
Abstract

In the 1st of 4 experiments, fowl semen was placed in dialysis bags to give an air:semen ratio of 1:1, 1:2 or 1:1. Samples were dialysed and agitated, or were stationary controls. In the 2nd experiment, semen samples were subjected to osmotic pressures ranging from 306 to 587 mosm/kg and dialysed...

Author(s)
Li, S. R.; Graham, E. F.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communication., 1988, Paper No. 270, pp 3pp.
Abstract

Nine Swedish Red-and-White bulls were studied. Three were rejected for use in AI due to low post-thaw sperm motility (group 1), and 6 were normal controls (group 2). One ejaculate was collected from each bull. The animals in group 1 were then slaughtered, the contents of the epididymal cauda were...

Author(s)
Söderquist, L.; Larsson, K.; Drejare, L.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 384, pp 3pp.
Abstract

The effect of temp. (22°-42°C) on sperm motion was studied in stallion semen. 49% of spermatozoa were motile at 22°, fewer than at any other temp. (P<0.05). Spermatozoa swam with greatest velocity (>60 µm/s) and linearity at 37° and 42°. When motility in semen samples 16 and 200 µm deep (on a ...

Author(s)
Amann, R. P.; Squires, E. L.; Pickett, B. W.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 221, pp 3pp.
Abstract

Semen from 4 rams was diluted in Tris-citric acid-fructose-egg yolk-glycerol. Glycerol was added at 3, 6 or 9%, at 5 or 35°C; equilibration time of 0, 2 or 4 h was allowed, and thawing was at a rate of 5° per 3 min, 35° per 35 s or 75° per 8 s. Sperm motility after the addition of 3, 6 and 9%...

Author(s)
López, G. A. P.; Sosa, C. F.; González, E. P.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 272, pp 3pp.
Abstract

Data are tabulated on the post-thawing motility and survival of spermatozoa frozen in containers with 11 surface:volume ratios, different numbers of layers of semen doses and 11 freezing rates. The best motility and survival occurred for a surface:volume ratio of 1.3, 3 layers of semen doses, and a ...

Author(s)
Isachenko, E. F.; Ostashko, F. I.; Ivashchenko, V. I.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 257, pp 3pp.
Abstract

At 3 commercial AI centres, the post-thawing quality of bull spermatozoa in egg yolk-citrate, heated whole milk or egg yolk-Tris diluents to which had been added a combination of the antibiotics gentamicin, tylosin and Linco-spectin (GTLS) was compared with that when the usual combination of...

Author(s)
Kaproth, M. T.; Marshall, C. E.; Lorton, S. P.; Bean, B. H.; Kellgren, H. C.; Sullivan, J. J.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30, 1988. Volume 4. Brief Communications., 1988, Paper No. 518, pp 3pp.
Abstract

Semen from 12 rams was thawed in Minnesota Test medium (1 ml per 0.1-ml semen pellet). At 5, 10 and 15 µg per pellet, PGF caused an increase in sperm motility (42.50±2.72, 42.50±2.42 and 44.17±1.93% resp. vs. 35.83±2.53% in controls without PG). In vertical progress tests, sperm movement was more ...

Author(s)
Anel, L.; Dominguez, J. C.; Abad, M.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 223, pp 2pp.
Abstract

Both cold- and warm-stored spermatozoa placed in cold activating media had a longer duration of motility than those placed in warm media (541 and 449 vs. 309 and 239 s resp.). Osmolarities >300 mosm activated motility in anionic and especially ionic solutions, but there was no significant...

Author(s)
Goodall, J. A.; Blackshaw, A. W.; Capra, M. F.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 244, pp 3pp.
Abstract

Boar semen in modified BTS (Beltsville thawing solution) was placed on a discontinuous Percoll gradient at 37°C. Spermatozoa in frozen-thawed semen were unable to penetrate the gradient. When the glucose in BTS-Tris was replaced with an equimolar amount of fructose, penetration from fresh semen was ...

Author(s)
Vries, A. C. J. de; Colenbrander, B.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Reproduction and Artificial Insemination, University College Dublin, Ireland, June 26-30 1988. Volume 3. Brief communications., 1988, Paper No. 238, pp 3pp.

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