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Response to dietary protein during lactation of Meishan synthetic and European White sows fed to attain two levels of backfat at farrowing

Published online by Cambridge University Press:  05 November 2021

A.G. Sinclair ,
M.C. Cia ,
S.A. Edwards  and
S. Hoste
A.G. Sinclair
Affiliation:
Scottish Agricultural College, Craibstone Estate, Bucksburn, Aberdeen, UK AB21 9YA
M.C. Cia
Affiliation:
Scottish Agricultural College, Craibstone Estate, Bucksburn, Aberdeen, UK AB21 9YA
S.A. Edwards
Affiliation:
Scottish Agricultural College, Craibstone Estate, Bucksburn, Aberdeen, UK AB21 9YA
S. Hoste
Affiliation:
PIC, Fyfield Wick, Abingdon, Oxfordshire, UK 0X13 5NA
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Extract

Meishan synthetic (M) sows and gilts produce greater weight of weaned piglets and lose more backfat and body weight during lactation than White (W) breed types (Sinclair et al., 1996a). The increased litter weight and increased fat loss of M could be due to (1) M having more fat reserves than W at the start of lactation to support a higher level of milk production, (2) M being inherently more adapted than W to partition body reserves to milk production. Commercial objectives of the M breeding programmes include a reduction of backfat, so it is necessary to establish the importance of fat reserves in the maternal performance of the breeds. The objective of this experiment was to measure the consequences of manipulating body fat reserves at farrowing by nutritional means in the two breed types.

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Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 56
Copyright
Copyright © British Society of Animal Science 1997

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References

Sinclair, A.G., Edwards, S.A., Hoste, S., McCartney, A. and Fowler, V.R. 1996. Partitioning of dietary protein during lactation in the Meishan synthetic and European White breeds of pig. Anim Sci 62: 355–362.CrossRefGoogle Scholar
Sinclair, A.G., Cia, M.C, Edwards, S.A. and Hoste, S. 1996. The effect of dietary protein level on milk yield and composition, and piglet growth and composition of Meishan synthetic and European white breeds of sow. Biology of lactation in farm animals. EAAP/ASAS workshop, Lillehammer. Abst 21.Google Scholar