Adaptation,use and management of Tall Fescue 。 Used for pasture,hay,silage and soil conservation,primarily in the transition zone. Tolearant wide range of enviroment,including soils that are acid,infertile,drought-prone and somewhat poorly-drained. 。 Tolerates heat,overgrazing and improper management,but not very cold-tolerant as smooth bromegrass and timothy. FORAGES Copyright reseved by Long Ming College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • Used for pasture,hay,silage and soil conservation,primarily in the transition zone. • Tolearant wide range of enviroment,including soils that are acid,infertile,droughtprone and somewhat poorlydrained. • Tolerates heat,overgrazing and improper management,but not very coldtolerant as smooth bromegrass and timothy. Adaptation，use and management of Tall Fescue
"Fescue is our main feed and also our main problem,"some have been heard to say.It is persistent,yet the endophyte fungus can make Fescue be toxic to livestock.Lower conception rates, lower weaning weights and poor cattle performance are typical problems caused by the fungus living inside of fescue grass Tall Fescue Toxicosis羊茅中毒症 Infected with an endophyte内生菌（吡喀碱Perloline) Depressed growth rates,especially in the summer and autumn when alkaloid levels are at their highest. 7■RAGE 症状：食量过多会使牛脱皮、毛干燥、腹泻，体重下 降，尤以春末夏初容易发生 Copyright reseved by Long Mingx College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • Tall Fescue Toxicosis 羊茅中毒症 Infected with an endophyte内生菌（吡喀碱Perloline） • Depressed growth rates, especially in the summer and autumn when alkaloid levels are at their highest . • 症状：食量过多会使牛脱皮、毛干燥、腹泻，体重下 降，尤以春末夏初容易发生 "Fescue is our main feed and also our main problem," some have been heard to say. It is persistent, yet the endophyte fungus can make Fescue be toxic to livestock. Lower conception rates, lower weaning weights and poor cattle performance are typical problems caused by the fungus living inside of fescue grass
Toxic effects on broodmares (传种母马) abortions,prolonged gestation 孕期延长，birthing problems, retained placentas)胎盘滞留， agalactia Management remove mares 60-90 days before foaling产驹 replace infected stands ■RAGE new technologies Copyright reseved by Long Ming College of animal science,Northwest Agriculture&Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • Toxic effects on broodmares （传种母马） – abortions, prolonged gestation 孕期延长, birthing problems, retained placentas胎盘滞留, agalactia • Management – remove mares 6090 days before foaling产驹 – replace infected stands – new technologies
Orchardgrass果园草 ppV2-213,forages pp345中文教材 Origin and description Also known as cocksfoot native to Europe,North Africa,and parts of Asia. FORAGES College of animal science,Northwest Agri 西北农林科技大学动物科技学
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu Orchardgrass 果园草 ppV2213,forages pp345 中文教材 Origin and description • Also known as cocksfoot • native to Europe,North Africa,and parts of Asia
Orchardgrass High nutritive value Palatable Hay or Pasture Bunchgrass-forms open sod Does not tolerate close and frequent defoliation Limited summer growth Limited persistence Insect problems FORAGES College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系
__________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu Orchardgrass • High nutritive value • Palatable • Hay or Pasture • Bunchgrassforms open sod • Does not tolerate close and frequent defoliation • Limited summer growth • Limited persistence • Insect problems