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Khaki Campells, dietary problem?

My ducks have been laying eggs with very weak shells, in fact the output is low so I suspect they are eating the broken ones.

I bought some oyster shell, how long does it take to work?

I noticed this morning when I let them out in the rain, the water isn't "rolling off" them as usual, their feathers are wet and look a bit matted.

The diet is just the standard Red Mills poultry feed plus the odd bag of thawed frozen peas.

They are out around the house to forage also.

Does egg fertility drop off this time of year?

I had some success at hatching two months back, but aborted my latest batch when it seemed only three out of twenty two were viable.

Advice would be gratefully accepted.

Monday, September 27th, 2021

It's coming in to winter now so egg laying will decrease dramatically or completely depending on how well bred your ducks are for laying.
Do they have access to grass and soil?
They may not eat too much oyster shell but it's good to have it. My ducks prefer eating fine sand which they get in the soil. So if you've a limestone area weak shells shouldn't be a problem.
Feed them layers pellets or a mixture of this and duck and goose pellet (also red Mills)

Adrian Kelly
Monday, September 27th, 2021

Many thanks.
Eggs are between three and four, I have five ducks and a drake.
I was getting five all year but it dropped to four at the same time one duck got lame. Not sure if it was coincidence or related.

The egg production is between two and three useable and has been for a while. Invariably one is just an empty shell, paper thin.

There is plenty of sand, no shortage at all, it blows in off the strand.

I bought some layers last week, so I will give it a go.

When my eggs hatched last year, I just asked for duck food, and only hit on the idea that there might be a different variety recently.

I used to collect snails for them as I walked around the local roads, the feeding frenzy was horror movie stuff!

The snails are a bit too fast for me this year though:-(

Thanks for the help, but those that I do collect seem to be mainly infertile now anyway, is fertility as well as production a seasonable thing?

Monday, September 27th, 2021

3-4 out of 5 is good for this time of year. One of your ducks may have a bit of an issue with absorbing calcium perhaps.
Fertility will be bad this time of year, or non existant. Breeding season is from December to july

Adrian Kelly
Monday, September 27th, 2021

Many thanks Adrian, I suspected this might be the case.

To be honest, I'm glad I stopped the incubation, I fear I might have a lot more quacking here soon anyway.

Monday, September 27th, 2021

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