I believe your water softener is the problem, if it's ion exchange. They use sodium to catch calcium and magnesium ions I believe. Doc definately knows more about this.
If that's the case the sodium content in the water will cause the Landrace to seem overfed regardless of how little drench you give it. I think they are the most sensitive to salt.
Plush berry being the hybrid likely doesn't mind
If that's the case the sodium content in the water will cause the Landrace to seem overfed regardless of how little drench you give it. I think they are the most sensitive to salt.
Plush berry being the hybrid likely doesn't mind