In the breeding of mutton sheep should be taboo natural selection

August 20, 2024

Natural matching refers to a breeding method in which a ram is put into a breeding ewes group to allow free mating. Since a ram has a large number of rams in it, it is often the relatively strong individuals who have the most opportunities for mating, and the results will inevitably make the development of the flock more or less adapt to the needs of natural selection, but the generations born in the economy Performance may not be improved. The reason why it can do this is that the powerful rams are not necessarily all good in terms of production performance, and most of them may even belong to individuals with lower performance. For example, rams with high meat performance may not necessarily be strong in the fight for males. They may not be able to overcome the appearance of symmetry and sturdiness, but meat production performance is relatively ordinary, even lower rams; no matter how good the rams are; It is also very difficult for a ram to defeat a horned ram with a very general quality, even a very small body.

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Antiviral drugs are a class of medication used specifically for treating viral infections. Like antibiotics and broad-spectrum antibiotics for bacteria, most antivirals are used for specific viral infections, while a broad-spectrum antiviral is effective against a wide range of viruses. Unlike most antibiotics, antiviral drugs do not destroy their target pathogen; instead they inhibit their development.


Antiviral drugs are one class of antimicrobials, a larger group which also includes antibiotic (also termed antibacterial), antifungal and antiparasitic drugs, or antiviral drugs based on monoclonal antibodies. Most antivirals are considered relatively harmless to the host, and therefore can be used to treat infections. They should be distinguished from viricides, which are not medication but deactivate or destroy virus particles, either inside or outside the body. Antivirals also can be found in essential oils of some herbs, such as eucalyptus oil and its constituents.Related Products:antiviral drugs,anti-cancer drugs.


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