Nutritional value of Virginia fanpetals (Sida hermaphrodita rusby) protein in evaluation of nitrogen fertilization effect on environment
Journal Title: New Medicine - Year 2011, Vol 15, Issue 1
Abstract
Objective. The research objective was to use the Virginia fanpetals (Sida hermaphrodita Rusby) nutritional value in the evaluation of nitrogen fertilization impact on the environment.Material and methods. The studies involved Virginia fanpetal’s forage fertilized with 100, 200 and 300 kg N/ha doses, dried and used in the biological assays performed on fistulated cows. The obtained feed material was examined to determine protein content and its biological value. In the bioassays conducted on animals protein degradation in the rumen was determined as well as its true intestinal digestibility.Results. The optimum of 200 kg N/ha dose had a direct influence on the increasing protein content and its biological value. In consequence of this protein nutritional value formation, high rate (81%) of protein degradation and true digestibility were reported.Conclusions. Growth of protein content in forage crops under nitrogen fertilization should be assessed by its nutritional value, availability and true digestibility in animal nutrition. This effect of nitrogen fertilization may implicate reduced nitrogen release to the human work environment and the atmosphere.
Authors and Affiliations
Andrzej Tarkowski, Jerzy Truchliński
Keywords
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