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Animal Science Database

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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

Jersey cattle are the second most prominent breed in the United States and represent a growing portion of the dairy cow population in the United States. The objectives of our study were to determine the male lineages of Jersey sires with official genetic evaluations and to determine whether there...

Author(s)
Dechow, C. D.; Liu, W. S.; Idun, J. S.; Maness, B.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 3, pp 2281-2284
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
AbstractFull Text

Nordic Cattle Genetic Evaluation (NAV) has recently updated the joint Nordic fertility evaluation launched in 2005. Countries belonging to EuroGenomics Cooperative are harmonizing fertility evaluations to increase the benefit of using the common reference population for genomic evaluation. As a...

Author(s)
Tyrisevä, A. M.; Muuttoranta, K.; Pösö, J.; Nielsen, U. S.; Eriksson, J. Ǻ.; Aamand, G. P.; Mäntysaari, E. A.; Lidauer, M. H.
Publisher
Interbull Centre, Uppsala, Sweden
Citation
Interbull Bulletin, 2017, No.51, pp 57-62
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

This study investigated the effect of growth parameters and metabolic indices during the rearing period on the fertility of nulliparous Holstein-Friesian heifers managed on 17 UK dairy farms. Growth parameters (body weight [BW], heart girth, height, and crown-rump length) and metabolic indices...

Author(s)
Brickell, J. S.; Bourne, N.; McGowan, M. M.; Wathes, D. C.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2009, 72, 3, pp 408-416
Abstract

This book provides an overview of the policy issues, quantitative and molecular genetics, reproductive techniques and methods of conservation of farm animal genetic resources. It is divided into 4 sections containing 21 chapters, which discuss the global, European and UK perspectives of...

Author(s)
Simm, G.; Villanueva, B.; Sinclair, K. D.; Townsend, S.
Publisher
Nottingham University Press, Nottingham, UK
Citation
Farm animal genetic resources, Edinburgh, UK, 25-27 November, 2002, 2004, pp 345 pp.
Abstract

The number of inseminations carried out with semen from bulls of dairy, dual-purpose and beef breeds was 1 098 848, 7260 and 984 431 resp. in 1988/89 vs. 1 092 917, 2775 and 1 043 725 in 1987/88. The breeds responsible for at least 1% of the total number of inseminations were as follows:...

Publisher
Milk Marketing Board, Thames Ditton, UK
Citation
Report of the Farm Services Division 1988/89, No. 39., 1989, pp 32-88
Abstract

The number of inseminations carried out in 1983/84 was approx. 2 555 000, 17 236 more than in the previous yr. The 30- to 60-day NR rate was 80.2% vs. 80.4 in 1982/83. The percentages of inseminations with dairy breed and beef breed semen were 65.7 and 34.3 resp. vs. 67.2 and 32.8 in 1982/83....

Publisher
Thames Ditton, UK
Citation
Report of the Breeding and Production Organisation. No. 34, 1983/84., 1984, pp 30-78

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