We have 2 hens, they were called Gingernut Rangers when we got them from Omlet, I believe. We got them about 11 months ago, they started laying a couple of weeks after we got them, so I think they are just over a year old.
They have been laying 1 egg per day per hen since they started laying, with very few 'days off'. Over the past couple of weeks we have started to notice that one of our ladies is laying eggs that have a slightly weaker shell. They seem to come out whole but then get trampled on & broken before we retrieve them, despite us checking multiple times per day. We have tried adding Oyster Shell mix (from Pets at Home) to their food (layers pellets), but I'm not sure if we're doing it right as the eggs are the same. How much should we put in, how often & how long before it should take effect?
Also, my dparents think that one hen seems to be less keen than the other to get to the food & think this means she's not well, but I think that this has always been the case & just assumed that the other one was dominant.
For info, they are currently in a 3-hen Eglu & run, but in the winter we let them range free in our (small) garden & shut them in at night.
Any advice would be great, thanks 