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Energy Balance for dairy cows given grass silage with either barley or molassed sugar beet feed in the concentrates

Published online by Cambridge University Press:  24 November 2017

D E Beever ,
J D Sutton ,
S B Cammell ,
M J Haines ,
M C Spooner  and
J I Harland
D E Beever
Affiliation:
AFRC Institute of Grassland and Environmental Research Hurley, MaidenheadBerkshireSL6 SLR
J D Sutton
Affiliation:
AFRC Institute of Grassland and Environmental Research Hurley, MaidenheadBerkshireSL6 SLR
S B Cammell
Affiliation:
AFRC Institute of Grassland and Environmental Research Hurley, MaidenheadBerkshireSL6 SLR
M J Haines
Affiliation:
AFRC Institute of Grassland and Environmental Research Hurley, MaidenheadBerkshireSL6 SLR
M C Spooner
Affiliation:
AFRC Institute of Grassland and Environmental Research Hurley, MaidenheadBerkshireSL6 SLR
J I Harland
Affiliation:
AFRC Institute of Grassland and Environmental Research Hurley, MaidenheadBerkshireSL6 SLR British Sugar plc, PO Box 26, Oundle Road, Peterborough, PE2 9QU
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Extract

When diets of concentrates and grass silage (70:30) were offered to cows to compare barley (B) and molassed sugar beet feed (SBF) as the major component of the concentrate, calorimelric studies revealed enhanced energy partition towards milk at the expense of tissue repletion on B, during lactation weeks 11-21, whilst heat production was unaffected (Beever et al., 1989). In contrast when Sutton el al. (1988) fed the same diets to early lactation cows SBF increased milk fat and energy yields particularly during weeks 4-10, but less so during weeks 11-14. One possible explanation for this difference in response may relate to the different stages of lactation examined. To investigate this further, energy partition was examined in cows between weeks 6 and 14 of lactation given barley or molassed sugar beet feed based concentrates with approximately equal proportions of grass silage.

Type
Grazing and conservation for dairy cattle
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1991 , March 1991 , pp. 49
Copyright
Copyright © The British Society of Animal Production 1991

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References

Beever, D E, Cammell, S B, Sutton, J D, Spooner, M C, Haines, M J and Harland, J I (1989). In: Energy Metabolism of Farm Animals, pp. 33–36, (van der Honing, Y and Close, W H, eds.). Pudoc, Wageningen.Google Scholar
Cammcll, S B, Thomson, D J, Beever, D E, Haines, M J, Dhanoa, M S, Spooner, M C (1986). British Journal of Nutrition, 55, 669.Google Scholar
Sutton, J D, Daley, S R, Haines, M J and Thomson, D J (1988). Animal Production, 46, 490.Google Scholar