Interactions: Genetics and Reproduction

نویسنده

  • Dr. E. R. Jordan
چکیده

Tremendous genetic improvements have occurred in the dairy cattle population. The progress has been due to the identification and the subsequent availability of superior sires through artificial insemination (Al). Since 1973 a new technology, embryo transfer (ET), has provided an additional avenue for genetic progress. The genetic and economic returns from this technology remain subject to the selection pressure placed on the dams and sires used.

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تاریخ انتشار 1998