Do we need to make allowance for this when calculating the FEC? Suppose lamb A, 30%DM dung and lamb B, 60%DM may have identical worm burdens but would you expect to get the same FEC result? How would they vary? Anyone sufficiently anal to have worked it out?
Erratic supplies of Scabivax this winter - Is there any evidence that a pre-lambing vaccine injection for ewes in 2022 might extend to cover a second lambing season?
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