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Abstract

61 mares were assigned to the following treatments for insemination with chilled (5°C) spermatozoa when a 40-mm follicle was detected by palpation and ultrasonography: (1) inseminated twice, first with 1 × 109 progressively motile spermatozoa stored for 24 h, and the 2nd 24 h later with the same...

Author(s)
Squires, E. L.; Brubaker, J. K.; McCue, P. M.; Pickett, B. W.
Citation
Theriogenology, 1998, 49, 4, pp 743-749
Abstract

A discussion. The primary factors affecting fertility in AI programmes are number and quality of spermatozoa in the inseminate, timing and frequency of insemination, volume inseminated, semen handling, semen diluents, and cleanliness of procedures and equipment. The number of spermatozoa available...

Author(s)
Pickett, B. W.; Shiner, K. A.
Citation
Livestock Production Science, 1994, 40, 1, pp 31-36
Abstract

Author(s)
Pickett, B. W.
Publisher
W.B. Saunders Co., Philadelphia, USA
Citation
Current therapy in theriogenology, 1980, pp 681-693
Abstract

Author(s)
Pickett, B. W.
Publisher
WB Saunders Company., Philadelphia, USA
Citation
Current therapy in theriogenology: diagnosis, treatment and prevention of reproductive diseases in animals., 1980, pp 688-693
Abstract

An account is given of the effects of nutrition, lactation, suckling, dystocia, detection and synchronization of oestrus and time of insemination on the postpartum fertility of inseminated beef cows.

Author(s)
Berndtson, W. E.; Pickett, B. W.
Citation
Veterinaria Argentina, 1991, 8, 80, pp 704-712
Abstract

A review. The advantages and disadvantages of AI in horses are discussed. The results of attempts to quantify the number of mares that can be inseminated with semen from a single stallion are summarized.

Author(s)
Pickett, B. W.; Voss, J. L.
Citation
Journal of Equine Veterinary Science, 1999, 19, 6, pp 363-373
Abstract

Semen from 5 light horse stallions was diluted to a concentration of 400 or 1600 million/ml and samples were frozen in 0.5-ml straws. 67 mares (100 oestrous cycles) were inseminated with the semen using a dose of 1-10 straws. Increasing the total number of spermatozoa inseminated from 320 to 800...

Author(s)
Squires, E. L.; Leipold, S. D.; Graham, J. K.; McCue, P. M.; Brinsko, S. P.; Vanderwall, D. K.; Pickett, B. W.
Publisher
Equine Nutrition & Physiology Society Publications, Savoy, USA
Citation
Proceedings of the Fifteenth Equine Nutrition and Physiology Symposium, Fort Worth, Texas, USA, 28-31 May, 1997., 1997, pp 279-280
Abstract

Data from 1044 stallions, some of which passed and some of which failed a seminal evaluation test, were analysed. The number of spermatozoa (× 109) in the 1st ejaculate in horses which passed the test ranged from 8.5 to 13.0 in Paint and Thoroughbred horses resp., and scrotal width averaged 102 and ...

Author(s)
Voss, J. L.; Pickett, B. W.; Bowen, R. A.; Squires, E. L.; McKinnon, A. O.
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. 388, 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

Of 1044 stallions, 669 passed a semen evaluation test and were designated "sound breeders", and 375 failed the test. In stallions which passed and failed, semen volume averaged 54±42 and 50±41 ml resp. for the 1st ejaculate, and 47±33 and 44±34 ml for the 2nd. Sperm concentration (× 106) averaged...

Author(s)
Pickett, B. W.; Voss, J. L.; Bowen, R. A.; Squires, E. L.; McKinnon, A. O.
Publisher
University College Dublin, Dublin, Irish Republic
Citation
11th International Congress on Animal Production and Artificial Insemination, University College Dublin, Ireland, June 26-30. Volume 3. Brief communications., 1988, Paper No. 380, pp 3pp.

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