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Forty female chickens were allocated to four groups of ten birds each. The control group (K) was fed a basal diet without supplementation. The second control group received a basal diet with humic aci...
Biological investigations on ewes of Merinolandschaf breed (n = 10) were conducted by the 60th lactation day during the summer on pasture. Ewe milk sampling was carried out on the 2nd; 10th; 30th and ...

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