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Effect of parity number on growth pattern and carcass measurements of continental cross suckler cows under lowland conditions

Published online by Cambridge University Press:  20 November 2017

D.C. Patterson ,
C.A. Moore ,
R.W.J. Steen  and
D.J. Kilpatrick
D.C. Patterson
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, UK
C.A. Moore
Affiliation:
Greenmount College of Agriculture and Horticulture, Greenmount Road, Antrim, Co. Antrim BT41 4PU, UK
R.W.J. Steen
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, UK
D.J. Kilpatrick
Affiliation:
Biometrics Division, Department of Agriculture for Northern Ireland, Newforge Lane, Belfast BT9 5PX, UK
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Extract

The objective was to examine the effects of parity of cows at slaughter on the growth and development of the carcass, and changes in carcass composition in continental suckler cows in a lowland beef system.

The experiment had a factorial design based on the factors : parity and level of finish. The parity treatments were parities: 0 (maiden), 1, 3 and 5. The levels of finish were medium (fat class 3) and high (fat class 4 L). A group of three Blonde d’Aquitaine AI sires was common to parities 1, 3 and 5. Mean lactation length was 163 days which was spent at pasture. Animals for the medium level of finish were slaughtered at the point of service (maiden heifers) or at weaning (parities 1, 3 and 5), while high finish animals all had an additional finishing period on a grass silage/concentrate diet. A total of 77 animals of ¾ Charolais genotype were slaughtered within the experimental design with approximately equal numbers of animals slaughtered within each treatment.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 52
Copyright
Copyright © The British Society of Animal Science 1999

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