Feeding the pregnant sow
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![Page 1: Feeding the pregnant sow](https://reader035.fdocuments.in/reader035/viewer/2022062308/56812b77550346895d8f96a7/html5/thumbnails/1.jpg)
Feeding the pregnant sow
Ray King,
Program Manager, Pork CRC
![Page 2: Feeding the pregnant sow](https://reader035.fdocuments.in/reader035/viewer/2022062308/56812b77550346895d8f96a7/html5/thumbnails/2.jpg)
The optimum level of feeding in pregnancy varies because of such factors as:
size and body condition of sowenvironmenthousinghealthlevel of productivity
![Page 3: Feeding the pregnant sow](https://reader035.fdocuments.in/reader035/viewer/2022062308/56812b77550346895d8f96a7/html5/thumbnails/3.jpg)
Live weight
The sow requires an extra 2.9 MJ DE/day (or about 0.2 kg feed/day) for an increase of 30 kg in body weight
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For 30 kg maternal gain in pregnancy
Liveweightat mating
(kg)
DErequirement
(MJ/day)
Feed(kg/day)
120 23.8 1.9150 26.4 2.1180 29.0 2.3210 31.6 2.5240 34.2 2.7
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Environment
The sow requires an extra 6 MJ DE/day (or about 0.45 kg/d) for each 5ºC below the lower critical temperature
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Housing The sow kept in individual stalls may require an
extra 2.5 MJ DE/day (or about 0.2 kg/d) because their activity is greater and, consequently, their energy requirement for maintenance is greater than that for group housed sows. In addition, the individually housed sow usually has a higher Lower Critical Temperature than sows kept in groups.
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Health
If the disease burden in the herd is high, pregnant sows may require up to 0.5 kg feed/day to cover the extra energy requirements for maintenance
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Feed intake in pregnancy
Feed levels need to be adjusted depending upon temperature, housing, sow size, health status.
Protein levels are usually adequate with minimum of 13% crude protein and 0.5% lysine.
No simple recipe for determining feed level for sows during pregnancy.