Metabolism under basal conditions: thermoneutral environment, post‑absorptive state, and complete rest—when energy expenditure is minimal.
A substance that slows or stops bacterial reproduction and at the same time redu...
Duck eggs containing embryos after 16–18 days of incubation and then boiled for ...
Elements of the feather vane arising on both sides of the rachis.
Parts of the feather vane growing on both sides of the barbs; anterior (hooked) ...
The unfeathered part of the shaft of a feather between the superior and inferior...
A system of cages for housing poultry arranged in two or more tiers one above an...