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Effect of breed, sex, type of cereal and supplementary hay upon the performance of beef cattle given high-concentrate diets

Published online by Cambridge University Press:  27 March 2009

E. Owen  and
G. M. Davies
E. Owen
Affiliation:
Department of Agriculture, University College of north Wales, Bangor
G. M. Davies
Affiliation:
Department of Agriculture, University College of north Wales, Bangor
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Extract

1. In a 2×3×3 factorial experiment a total of seventy-two female or castrated pure Friesian, Charolais × Friesian and Welsh Black × Friesian cattle were fed individually and ad libitum on three diets from 200 lb to slaughter at 800 or 900 lb, depending on sex. The diets were ground barley (87%) and protein-mineral-vitamin supplement (13%) given with or without 1 lb of hay per animal daily, or ground maize (87%) and supplement (13%) given with 1 lb of hay daily.

2. The three breed-types differed significantly in growth rate and feed conversion efficiency. Gaining at 2·66 lb/day and converting 4·56 lb of meal into 1 lb live-weight gain, the Charolais crosses grew 7·7 % faster than pure Friesians and consumed 14·1% less meal per unit gain. Welsh Black crosses made 9·3% less rapid gains and required 7·7 % more meal per unit gain than pure Friesians. The disparity between the three breedtypes increased with increasing liveweight.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 69 , Issue 1 , August 1967 , pp. 79 - 94
Copyright
Copyright © Cambridge University Press 1967

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