Forage nutrient composition in the wet season in Benue state, Nigeria. I. Macrominerals andin vitroorganic matter digestibility1
作者:
P. O. Ogebe,
L. R. McDowell,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1998)
卷期:
Volume 29,
issue 9-10
页码: 1199-1210
ISSN:0010-3624
年代: 1998
DOI:10.1080/00103629809370020
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Seventy‐one forage samples were analyzed for their macromineral composition and foragein vitroorganic matter digestibility (IVOMD) in three agricultural zones of Benue State, Nigeria. The zones consisted of Northern, Eastern, and Central zones, each of which were made up of four Local Government Areas. In each Local Government Area, grazing animals were monitored and forages corresponding to those consumed were collected during the peak of the wet season (June) and analyzed for their macromineral composition and IVOMD. Fewer number of forage samples were harvested from Northern and Eastern zones due to greater agricultural activities and infra‐structural land use which limited land space for grazing animals. Forage IVOMD ranged from 32% to 78.3% across all classes of forage and from 43.5% to 62.8% in the Local Government Areas. About 18% of total samples, exclusively from the Northern zone, showed forage IVOMD concentrations below 20%, probably resulting from grazing pressures and agricultural activities in the zone. Forages from the Northern zone were deficient in phosphorus (P), potassium (K), and sodium (Na) based on their criteria of adequacy. No deficiency levels were indicated in forage calcium (Ca) or magnesium (Mg). Northern and Eastern zones were in greatest need of mineral supplementation programs.
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