PJB-2007-243
PASTURE CONCENTRATION OF MINERALS IN RELATION TO THE NUTRIENT REQUIREMENTS OF FARM LIVESTOCK
ZAFAR IQBAL KHAN1*, MUHAMMAD ASHRAF2, EHSAN ELAHI VALEEM3 KAFEEL AHMAD1 AND MUHAMMAD DANISH4
Abstract
Mineral composition (Ca, Na, Cu, and Zn) of different forages and soils in five agricultural local pastures in the Punjab, Pakistan were studied. They were designated as pastures, feeding sites and situated at a distance of 5 km, exhibiting varied vegetation. Grazing animals were followed, and forages corresponding to those consumed by them, and the corresponding soil samples were collected during the winter and summer seasons and analyzed for mineral composition. Most forage samples as well as their corresponding soil samples were not sufficient for most minerals. Some low levels in soil Zn were found in two pastures during summer and winter seasons. Winter season soil Ca and Cu concentrations were significantly higher (p
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