We determined the spectral (with a spectral resolution of 1 nm) values for the productions γk_v and γ'k_v (k_v is monochromatic absorption coefficient of ammonia, γ and γ' are the relative (to the hydrogen-helium mixture (0.85/0.15) and methane, respectivaly) concentrations of ammonia for the ammonia bands at wavelengths of λλ = 552, 604, 645, 787 nm in thermal conditions in the atmospheres of Jupiter and Saturn (http://www.mao.kiev/ua/planets/page5-e.html).