RESEARCH INTO THE USE OF DIETARY NITROGEN BY GROWING AND FATTENING STEERS IN RELATION TO DIET FORMULATION AND ENERGY CONTENT
2023
I. VOICU | DORICA VOICU | AURELIA SOARE | DENISA RACHIERU | N. FLORESCU
Investigations were done on the use of the dietary nitrogen by fattening steers between 300-450 kg using the method of in vivo nutrient digestibility and nitrogen balance. Alfalfa and corn-based diets were used, in different forms of preservation and with different ratio of the bulk forage to the concentrate feeds; diet digestibility expressed as organic matter and protein varied between 72-76% and between 66- 75% respectively; the best performance produced by the corn silage diets were observed in diet 2 (with ammonia), while the best results produced by the alfalfa diets was noticed in diet 5 (haylage); nitrogen balance showed the highest values of the retained nitrogen in the alfalfa half-hay diet, the alfalfa hay diet having lower values.
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