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Publication Date
1993
Location
New Zealand
Description
The nitrogen (N) distribution of 2 tropical browse leaves (Balanites aegypliaca and Guiera senegalensis) and of 2 temperate alfalfa (Medicago sativa) hays was determined and the ruminal degradation of total N and fibre N fractions (NDSN, AFN, ADFN) was measured with nylon bag method. The average N degradability of temperate forages was not different, 77.1%, but that of the browse forages varied from 27.5% (G11iera) to 85.1 % (Balanites), The neutraldetergent-soluble N degraded rapidly in the rumen, whereas the aciddetergent-fibre N remained undegraded for all samples. The available fibre N was not high, except for the 3rd growth alfalfa (28% total N) in which 63.3 was degraded. The lowest N degradability of Guiera leaves can be explained by N content in cell wall and lignocellulose.
Citation
Toure-Fall, S and Michalet-Doreau, B, "Comparative Ruminal Nitrogen Degradability of Tropical Browse and Alfalfa Hays" (1993). IGC Proceedings (1985-2023). 4.
(URL: https://uknowledge.uky.edu/igc/1993/session56/4)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Comparative Ruminal Nitrogen Degradability of Tropical Browse and Alfalfa Hays
New Zealand
The nitrogen (N) distribution of 2 tropical browse leaves (Balanites aegypliaca and Guiera senegalensis) and of 2 temperate alfalfa (Medicago sativa) hays was determined and the ruminal degradation of total N and fibre N fractions (NDSN, AFN, ADFN) was measured with nylon bag method. The average N degradability of temperate forages was not different, 77.1%, but that of the browse forages varied from 27.5% (G11iera) to 85.1 % (Balanites), The neutraldetergent-soluble N degraded rapidly in the rumen, whereas the aciddetergent-fibre N remained undegraded for all samples. The available fibre N was not high, except for the 3rd growth alfalfa (28% total N) in which 63.3 was degraded. The lowest N degradability of Guiera leaves can be explained by N content in cell wall and lignocellulose.
