Individuals of the dam and sire lines with tested performance and combining ability, used in multiplication flocks to produce hatching eggs of final hybrids.
Category of multiplication flocks whose mission is the second crossing of lines ...
A unit equal to one billionth (10⁻⁹) of the whole.
A unit equal to one millionth of the whole (0.001%).
The highest egg production achieved by a hen or flock during the laying period.
Hatcher tray or box with partitions/holes that prevents uncontrolled movement of...
A meat-type duck breed originating from China and refined in England; characteri...