A fattening stage when birds are best suited for slaughter and processing: they have reached the required weight limit with good muscling of breast and legs and have mature plumage.
All traits except the gonads by which males and females differ externally and in...
The choice of individuals within a population to achieve a defined breeding obje...
The base population within which selection is carried out.
A measured trait or condition used as the basis for selection.
The difference between the mean of a selected group and the mean of the original...
The improvement achieved per unit of time as a result of purposeful selection (g...