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Abstract

Author(s)
Walsh, J. P.; Coates, A.; Lima, F.; Smith, R.; Oikonomou, G.
Publisher
British Cattle Veterinary Association, Quedgeley, UK
Citation
Cattle Practice, 2017, 25, 3, pp 160-161
Abstract

In the face of a steady decline in dairy cow fertility over several decades, using hormones to assist reproduction has become common. In the European Union, hormones are prescription-only medicines, giving veterinary practitioners a central role in their deployment. This study explored the clinical ...

Author(s)
Higgins, H. M.; Ferguson, E.; Smith, R. F.; Green, M. J.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2013, 8, 4, pp e62993
Abstract

In 1996-2005, ejaculates of 2048 boars were collected. All boars were intended for use in artificial insemination or natural breeding and had two descended testes. Azoospermia was present in 16 of the 1097 Yorkshire boars (1.5%) and in 2 of the 951 Landrace boars (0.2%). The two most frequent...

Author(s)
Kopp, C.; Ijäs, R.; Flyckt, A.; Taponen, J.; Parvinen, M.; Andersson, M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2008, 70, 7, pp 1129-1135
Abstract

In the period 1996-2006 two specific sperm defects, the knobbed acrosome (KA) defect and the immotile short-tail sperm (ISTS) defect, showed a strong negative association with fertility in Finnish breeding boars. In this study, we examined the incidence of these two sperm defects in two pig breeds, ...

Author(s)
Kopp, C.; Sironen, A.; Ijäs, R.; Taponen, J.; Vilkki, J.; Sukura, A.; Andersson, M.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2008, 43, 6, pp 690-695
Abstract

The number of 1st inseminations carried out with semen from bulls of dairy, dual-purpose and beef breeds was 1 156 515, 9655 and 648 231 resp. in 1980/81 vs. 1 235 246, 10 561 and 636 205 in 1979/80. The breeds responsible for more than or equal to 1% of the total number of inseminations were as...

Citation
UK, England and Wales, Milk Marketing Board: Report of the Breeding and Production Organisation 1980/1981, No. 31., 1981, pp 30-50
Abstract

The number of 1st inseminations carried out with semen from bulls of dairy, dual-purpose and beef breeds was 1 315 101, 11 640 and 586 837 in 1978/79 v 1 225 064, 12 192 and 620 210 in 1977/78. The breeds responsible for more than or equal to 1% of the total number of inseminations were as follows: ...

Citation
UK, England and Wales, Milk Marketing Board: Report of the Breeding and Production Organisation 1978/79, No. 29., 1979, pp 38-62
Abstract

In 1975/76, there were 2 Aberdeen-Angus, 2 Charolais, 26 Friesian, 1 Simmental, 1 Limousin and 8 Hereford bulls that each produced >30 000 doses of semen (30 445-69 223). The numbers of progeny-recorded bulls in service in Mar. 1976 were as follows: 4 Ayrshire; 174 Friesian (including 115 in the ...

Citation
UK, England and Wales, Milk Marketing Board: Report of the Breeding and Production Organisation 1975-76. No. 26., 1976, pp 51-54
Abstract

Milk production. The av. milk yield/cow increased by 15 gal from the previous year (4543 kg in 1972/73). The ratio of av. fat content to av. protein content for Ayrshires, Dairy Shorthorns, British Friesians, Guernseys and Jerseys was 1:0.86, 1:0.90, 1:0.88, 1:0.79 and 1:0.77 resp. The number of...

Citation
Report of the Breeding and Production Organisation 1973-74, No. 25., 1975, pp 134 pp.
Abstract

Bampton, P.R.; Curran, M.K.; Kempson, R.E. A preliminary study of the relationship between central testing and 'on-farm' performance testing of pigs : 97-98.Barlow, M.; Pryce-Jones, D.; Reed, H.C.B. An investigation into techniques for sheep artificial insemination in the field : 95.Cook, G.L.;...

Citation
Proceedings of the British Society of Animal Production, 1974, 3, New Series, pp 85-114
Abstract

Milk Production: The upward trend in total milk production and in yield per cow has continued; the latter reached 875 gal. Dairy and beef cow numbers increased to 2 794 000 and 719 000 resp., due largely to fewer cows being culled. Prices of steer calves rose considerably, those for Hereford X...

Citation
Report of the Breeding and Production Organisation, 1971-72, No. 22., 1973, pp 158 pp.

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