Alkali Treatments of Corn Stover to Increase Nutritive Value1

Ammonium Hydroxide Treatment on Wheat Straw

“…Oji et al (1977) indicated that NH 3 treatment markedly increased true protein content of corn stover compared to control stover silage.…”

“…Oji et al (1977) reported an increase of 94% in total nitrogen content for 3% NH 3 treated corn stover. Maximum or near maximum increase in total nitrogen content was 144% over control untreated straw (Table V).…”

“…However, Oji et al (1977) reported that 53% of the added nitrogen was retained for feeding by stover treated with 3% NH 3 . Most of the retained nitrogen was presented as free NH 3 -N. Waiss et al (1972) reported that about 50% of the increased nitrogen was NH 3 -N and the remaining 50% was more tightly bound.…”

“…In contrast, Millett et al (1970) observed an average increase of 19 units in dry matter digestibility by treating aspen saw dust with ammonia vapor under pressure. Garrett et al (1974) Oji et al (1977) reported that wethers were fed corn stover treated with different levels of NaOH, Ca(OH) 2 and NH 3 . Ammonia treated material were aerated before feeding.…”

Effet de diverses conditions de traitement à l'ammoniac d'une paille de blé sur les teneurs en acides $p$-coumarique et férulique et sur la degradabilité de l'azote mesurée "in situ"

“…Cette anomalie qui aboutit à une excré-tion d'azote anormalement élevée chez l'animal, a été observée depuis un quart de siècle [29,33]. Les chiffres rapportés pour les pailles du nord de l'Europe [6] indiquent que 25 à 41 % de l'azote fixé après traitement, ne sont pas utilisés par l'animal.…”