Approximately 5% of the population is covered by AI in the world, with an increasing trend every year, in which 99% of pigs are covered using liquid semen preserved at 16°C and the remaining 1% of pigs are inseminated using cryopreserved semen ( Johnson et al., 2000 ).
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Synthesis of green zinc-oxide nanoparticles and its dose-dependent beneficial effect on spermatozoa during preservation: sperm functional integrity, fertility and antimicrobial activity.
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