Mmeghachi omume nchekasị dị iche iche na-emetụta nri na uto nke anụmanụ mmiri, na-ebelata ọnụ ọgụgụ nlanarị, na ọbụna na-akpata ọnwụ. Mgbakwunye betain na nri nwere ike inye aka melite mbelata nke oriri anụ mmiri na-eri n'okpuru ọrịa ma ọ bụ nrụgide, nọgide na-eri nri ma belata ụfọdụ ọnọdụ ọrịa ma ọ bụ mmeghachi omume nchekasị.

Betaine nwere ike inyere salmon aka iguzogide nrụgide oyi n'okpuru 10 ℃, ma bụrụ ihe mgbakwunye nri dị mma maka ụfọdụ azụ n'oge oyi. A na-etinye mkpụrụ osisi carp ahịhịa a na-ebuga ogologo oge n'ime ọdọ mmiri A na B nwere otu ọnọdụ ahụ. 0.3% betaine na-agbakwunyere na nri ahihia kap na ọdọ mmiri a, na betaine na-etinyeghị ya na nri ahihia kap na ọdọ mmiri B. Nsonaazụ gosiri na ahihia carp seedlings na ọdọ mmiri a na-arụ ọrụ n'ime mmiri, rie ngwa ngwa, ọ dịghị anwụ anwụ; Fry na ọdọ mmiri B riri nwayo na ọnwụ bụ 4.5%, na-egosi na betain nwere mmetụta mgbochi nchekasị.

Betaine bụ ihe nchekwa maka nrụgide osmotic. Enwere ike iji ya dị ka ihe nchebe osmotic maka sel. Ọ nwere ike melite ndidi nke ndụ mkpụrụ ndụ ka oké ọkọchị, elu iru mmiri, elu nnu na hypertonic gburugburu ebe obibi, gbochie cell mmiri ọnwụ na nnu ntinye, melite ọrụ nke Na-K mgbapụta nke cell membrane, mee ka enzyme ọrụ na ndu macromolecular ọrụ, ka mezie anụ ahụ na cell osmotic mgbali na ion itule, Nọgide na-edozi edozi absorption okwu, welie ndidi mgbe ọnụ ọgụgụ nke azụ na shmotic mgbanwe mgbanwe osmotic.

Ọnụnọ nke nnu inorganic na mmiri mmiri dị oke elu, nke na-adịghị akwado uto na nlanarị azụ. Nnwale nke carp na-egosi na ịgbakwụnye 1.5% betaine/amino acid na azụ azụ nwere ike ibelata mmiri dị n'ime akwara nke azụ mmiri dị ọcha ma gbuo oge ịka nká nke azụ mmiri dị ọcha. Mgbe ntinye nke nnu inorganic n'ime mmiri na-abawanye (dị ka mmiri oke osimiri), ọ na-enye aka idobe nguzozi nguzozi nke electrolyte na osmotic nke azụ mmiri dị ọhụrụ ma mee mgbanwe site na azụ mmiri ọhụrụ gaa na gburugburu mmiri mmiri nke ọma. Betaine na-enyere ihe ndị dị ndụ n'oké osimiri aka ịnọgide na-enwe ntakịrị nnu n'ahụ ha, na-ejupụta mmiri na-aga n'ihu, na-ekere òkè na nhazi usoro osmotic, ma mee ka azụ mmiri dị ọcha nwee ike ime mgbanwe na gburugburu mmiri mmiri.