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- #21
It doesn't take long to get really complicated...you could supplement the animals' feed, or ferment the chickens' feed.
"Fermented foods contain lactic acid bacteria accumulating significant quantities of selenium, similar to yeast" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480557/ (section 7 of this rather dense article is about sources of selenium)
"...Concentrations of Met, cysteine and tyrosine in breast muscle significantly increased with increasing dietary Met conc., whereas isoleucine conc. significantly decreased. Moreover, the addition of inorganic and organic sources of Se increased Se conc. in breast meat. On the other hand, the addition of Met signif. decreased Se conc. in breast meat..." and other things.
I'm moving toward accepting that they can/will balance a lot more than I realized until recently. If given enough diversity of options.
I don't know how far it goes. If the options highest in (otherwise scarce) Met are the same options in (otherwise scarce) Se, .. oh. If they are both scarce, there probably isn't enough of one to negatively affect the other ... no, that only works if the proportions to the needed amount of each are similar.
Well, every time I dig into it, I get a little further before it gets frustrating enough to leave it again.
Thankfully, I don't have to either figure it out or accept the uncertainty. Yet, anyway.