Hello

Try these articles:

The influence of porcine blood by-products on laying hen performance, egg quality, and yolk mineral content.

Eggshell quality, eggshell structure and small intestinal histology in laying hens fed dietary Pantoea-6 (R) and plant extracts.

1- The effects of dietary garlic powder on performance,

egg yolk and serum cholesterol concentrations

in laying quails

2- Garlic (Allium sativum) Supplementation: Influence on Egg Production, Quality, and Yolk Cholesterol Level in Layer Hens

Hi,

- Newly Garlic extract is used for increasing production (with lots of odour in the house though)

Have a nice day

Thanks a lot for these suggestions, they were really good, again thanks