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Animal Science Database

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Abstract

The normal time budgets of dairy cows are influenced by oestrus, with cows spending less time resting and eating but more time walking. Previous studies have shown that cows spend approximately 21% less time feeding where the day of oestrus is assumed to be the day of successful artificial ...

Author(s)
Zebari, H. M.; Rutter, S. M.; Bleach, E. C. L.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Applied Animal Behaviour Science, 2018, 206, pp 12-17
Abstract

Large percentages of dairy cows do not express behavioural signs of oestrus. Faecal and urine fatty acid concentrations increase during oestrus. The objective of the present study was to determine the milk FA profile of dairy cows during the oestrous and dioestrous periods and the relationship with ...

Author(s)
Zebari, H. M.; Rutter, S. M.; Bleach, E. C. L.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2019, 202, pp 26-34
Abstract

Future progress in genetic improvement and the monitoring of genetic resources in beef cattle requires a detailed understanding of the population under selection. This study examines the gene flow in the UK beef population with an uncommon breeding structure involving interaction between the beef...

Author(s)
Todd, D. L.; Woolliams, J. A.; Roughsedge, T.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2011, 5, 12, pp 1874-1886
Abstract

A classification trial was set up (1) to ascertain whether assessors from the Associated Artificial Insemination Centres (AAICs), British Holstein Society (BHS), British Friesian Cattle Society (BFCS) and the Milk Marketing Board (MMB) generally rank animals in the same order and with the same...

Author(s)
Deeble, F. K.; Mercer, J. T.; Hill, W. G.
Citation
British Cattle Breeders' Club Digest, 1982, No. 37, pp 1-8
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...

Publisher
Thames Ditton, Surrey, England, Milk Marketing Board.,
Citation
Report of the Breeding and Production Organisation, 1971-72, No. 22., 1973, pp 158 pp.
Abstract

Data are tabulated on chromosome aberrations found over an 18-mth period in 421 bulls, either on progeny test or with high or low reproductive efficiency, at the Milk Marketing Board's cattle breeding centres. The beef bulls were all established AI sire, and most of the dairy bulls were Friesians...

Author(s)
Pollock, D. L.
Citation
Veterinary Record, 1974, 95, 12, pp 266-267
Abstract

A general review of the cattle industry in England and Wales during the year is followed by accounts of the board's activities: milk recording, the low cost production scheme, milking machine testing, artificial insemination, progeny testing, and the export of semen. The latter half of the report...

Author(s)
Anon.
Publisher
Thames Ditton: The Board,
Citation
Great Britain. Milk Marketing Board. Report of the Breeding and Production Organisation, Number 20, 1969-1970., 1971, pp 187 pp.
Abstract

Semen from 13 German Simmental (GS), 10 Swiss Simmental (SS) and 6 Limousin bulls was used to inseminate 3187, 2138 and 845 Friesian cows resp., 218, 144 and 323 Friesian heifers, and 1061, 279 and 128 Ayrshire cows. Results were compared with those for inseminations of Friesian cows with semen...

Publisher
Reading, Limousin and Simmental Tests Steering Committee., UK
Citation
Report of the calving surveys on bulls imported in 1970/71 and owned by artificial insemination organisations in Great Britain, Report No. 2., 1973, pp 15pp.
Abstract

Artificial Insemination. The total number of dairy cows inseminated in England and Wales slightly exceeded 2 million, representing an estimated 64% of breeding stock. Breed demand continued to show a preference for the the pure dairy breeds with Friesian representing 46.7% of all inseminations,...

Publisher
Thames Ditton, Surrey: Production Division, Milk Marketing Board,
Citation
Report of the Production Division, 1960/61. No. 11, 1961, pp 150 pp.
Abstract

The growth of A.I. from 1950 is traced and changes in breed demand since 1956 are tabulated. The most marked increase in demand has been for Friesian semen which represented 24.1% in 1961 v. 392% for Ayrshire, 22.8% for Aberdeen-Angus and 8.8% for Beef Shorthorn. In 1961 approx. 16.5% of all...

Author(s)
ROBERTSON, K. J.
Citation
Scottish Agriculture, 1963, 43, pp 8-14

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