The study objective was to determine if sows are anemic at any reproductive stage or parity. Hemoglobin concentrations were determined for 2683 sows from 11 farms. The overall trend was for hemoglobin concentrations to peak during mid-gestation and reach a nadir in early lactation when most (74.2%) sows were anemic.
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Castevens et al. (2020) studied this question.
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