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Diets of angora goats grazing leafy spurge Euphorbia esula-infested rangelandsAuthor(s): Donald Kirby; Thomas P. Hanson; Carolyn Hull Sieg
Source: Weed Technology. 11(4): 734-738.
Publication Series: Scientific Journal (JRNL)
Station: Rocky Mountain Research Station
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DescriptionAngora goats have been suggested as biological control agents for leafy spurge, especially in environmentally sensitive or limited access areas. Dietary preferences and dietary nutritive content of herded Angora goats were evaluated over a two-year period in North Dakota. Relative preferences of forages were evaluated by comparing botanical composition of diets as determined by microhistological analysis of fecal samples to forage availability in the field. Leafy spurge and shrubs comprised the largest percentage of goat diets throughout each grazing season. Goats preferred leafy spurge and shrubs at all times and avoided most cool-season grass species. The nutritional requirements of Angora goats nursing kids were met throughout the grazing season. Use of Angora goats is another tool available to land managers to manage leafy spurge infestations in the Northern Plains.
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CitationKirby, Donald; Hanson, Thomas P.; Sieg, Carolyn Hull. 1997. Diets of angora goats grazing leafy spurge Euphorbia esula-infested rangelands. Weed Technology. 11(4): 734-738.
KeywordsLeafy spurge, Euphorbia esula, Angora goat, rangeland, biological control, EPHES, integrated management, nutrient content, relative preference index
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