Significados de close interbreeding em inglês

Sterility various in degree, not universal, affected by close interbreeding, removed by domestication.

This holds good when there has been no previous close interbreeding.

It is sometimes checked by the lessened fertility and weakened constitution which follow from long-continued close interbreeding.

The evil consequences of long-continued close interbreeding are not so easily recognised as the good effects from crossing, for the deterioration is gradual.

But I believe that their fertility has been diminished in nearly all these cases by an independent cause, namely, by too close interbreeding.

As some kinds of plants suffer much more from self-fertilisation than do others, so it probably is with animals from too close interbreeding.

When few individuals of any breed exist within the same locality, close interbreeding, by lessening their vigour and fertility, aids in their final extinction.

Just as we have seen that intercrossing is not necessarily good, we shall be forced to admit that close interbreeding is not necessarily bad.

In relation to the subject of domestication, the whole question is of some importance, as too close interbreeding interferes with the improvement of old races.

To carry out these experiments with any satisfactory result, it will be necessary to avoid the evil effects of confinement and of too close interbreeding.

Supposed Evil Results of Close Interbreeding.

Close interbreeding, on the other hand, often induces sterility; and this indicates something quite distinct from the augmentation of morbid tendencies common to both parents.