Joan Fuster Monzo

I totally agree with the comments from Dr. Doug Korver. We need to maximize the reserve of calcium by strong structural bone during the rearing period and later on during all the lay period but especially during the start of lay period, trying to maximize the use of calcium from feed in order to protect the reserves of structural bone as long as possible. Recently I published an article in Avinews ...

Interesting Topic Mr Joly. Obviously after fermentation or technical treatment, That ís correct? I think it is a difficult option considering EU rules.

We can improve egg shell colour with that is commented in this forum and also two comments: - In free ranges layers could be interesting to reduce Vitamine D levels than cage layer because we have a positive efect from UVA radiation and with high levels of Vitamine D and UVA efects we will have more pale eggshell - Lower level of phosphorus improve shell quality in this period Regards

I think is a good article about Egg Shell Quality. Congratulations But I would like to know your opinion about recommendation, in aged hens, to add some grams ( 2-3 gr / hen / day ) of calcium carbonate in 3-4 mm particles on top in feed in the afternoon. And what is your better recomendation ( gr, age, time etc... ) Anticipated Thanks