In your opinion, can mass selection be used for breeding animals?

Do not use. Mass selection is phenotype selection. Individual – by genotype. Producers in animals are individuals with a well-defined pedigree i.e. the genotype for the necessary traits is quite well known. Yes, and the characteristics of animals – it takes time to reach puberty, a small number of offspring (compared with plants – now we can consider the solved problem – artificial insemination, surrogate females) and the impossibility of asexual reproduction.

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