As far as your question goes: Oyster shell will not increase your egg production under normal circumstances. Oyster shell is supplimental calcium used most often as free choice for flocks that might be being fed a non laying feed. For example.... I have a mixed flock of layers, breeders, and young pullets that are not laying yet, so I feed a general flock raiser for everyone but I still need to provide more calcium for the hens that are laying and need it. Which they will take free choice.
For most folks that just have layers and/or breeders; a good quality laying feed has more than enough calcium. Oyster shell also does not take the place of grit....it should only be used as a calcium suppliment and only if specifically needed.
Your production should be starting to increase with spring arriving. But you can check or do the following:
- Feed a good quality complete feed and make absolutely certain they always have clean water available.
- Keep the coop as clean as you can
- Check the size and position of the laying boxes
- Make certain their area gets plenty of natural light and clean air exchange (probably the most important for production) provide artificial light if you must so they get about 14 hours or more of light a day
There are lots of other things as well involving their health and parasites, etc.....but the above is where everyone should start.
Edited by bairo - 5/3/12 at 9:01pm