R. Bras. Zootec.01/Jun/2001;30(3):682-6.

Evaluation of ammonia sources to tropical grasses hays treatment. 2. Nitrogen compounds

Ricardo Andrade Reis, Luis Roberto de Andrade Rodrigues, Kléber Tomás de Resende, João Ricardo Alves Pereira, Ana Cláudia Ruggieri

DOI: 10.1590/S1516-35982001000300011

The experiment was conducted to evaluate the changes on the nitrogen compounds of the Brachiaria decumbens Stapf, jaraguá (Hyparrhenia rufa Ness Stapf) grasses hay, untreated, treated with urea (5.4% DM), urea plus lab-lab (UL-5.4% DM plus Lablab purpureus L. Sweet, cv. Highworth-3.0% DM) and anhydrous ammonia (NH3 – 3.0% DM). The chemical treatment with urea or NH3 increased the total N, neutral detergent insoluble N 9NDIN), acid detergent insoluble N (ADIN), non nitrogen protein (NNP), and the ammonical nitrogen (AN) contents. Ammoniation decreased the NDIN/TN and ADIN/TN ratios. The chemical treatment increased the NNP/TN and NA/TN ratios, and the crude protein contents. The N applied as urea or NH3 was retained as NNP and in the ammoniacal form.

Evaluation of ammonia sources to tropical grasses hays treatment. 2. Nitrogen compounds

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