An older bird who knows your flight well can be an invaluable asset, regardless of its breeding performance. A tame bird is even more help to you, as wilder members of the aviary will readily come to the cage of a confined bird, and will respond to its calm demeanor. On the other ...
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The intraclass correlation supplies a global estimate of genetic variation and an upper limit to the heritability of each trait. The results of the experiment suggest that traits such as meat texture, color, and muscle hemorrhage may be of value but that other eating characteristics are not ...