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| Registros recuperados: 12 | |
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| Griggs, T.C.; McAdam, J.W.; Mayland, H.F.; Burns, J.C.. |
| Herbage soluble carbohydrate (SC) levels vary diurnally and livestock intake can be higher for herbage harvested or allocated to animals in the evening than in the morning. Few assessments of SC and digestibility patterns have been made during sward depletion in rotationally stocked orchardgrass (Dactylis glomerata L.). We tested the hypothesis that simulated evening daily pasture allocation increases 24-h mean herbage SC and digestibility levels relative to morning allocation. Total nonstructural carbohydrate (TNC) and in vitro true dry matter digestibility (IVTDMD) levels were compared during 24-h clipping sequences initiated at 1900 h (PM) and 0700 h (AM). Sward height was progressively reduced from 40 to 8 cm at 6-h intervals in October,... |
| Tipo: Article |
Palavras-chave: Chemistry; Mass Import - autoclassified (may be erroneous). |
| Ano: 2005 |
URL: http://eprints.nwisrl.ars.usda.gov/16/1/1163.pdf |
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| Burns, J.C.; Fisher, D.S.; Mayland, H.F.. |
| Forages accumulate nonstructural carbohydrates during the day, with animals showing preference and improved daily responses from afternoon compared with morning cut hays. This study evaluated alfalfa (Medicago sativa L.) hay harvested at 0700, 1000, 1300, 1600, and 1900 h to determine how nutritive value changes during the day and to assess the impact of these changes on animal preference using cattle (Bos taurus L.), sheep (Ovis aries L.), and goat (Capra hircus L.) responses. Total nonstructural carbohydrates were altered by time of cut (cubic contrast, P < 0.01) ranging from 85 g kg?1 at 0700 h to 83 g kg?1 at 1000 h, then increasing to 97 g kg?1 by 1600 h with little change at 1900 h (96 g kg?1). Fiber fractions also varied diurnally,... |
| Tipo: Article |
Palavras-chave: Animal; Time-of-day harvest difference; Mass Import - autoclassified (may be erroneous). |
| Ano: 2007 |
URL: http://eprints.nwisrl.ars.usda.gov/69/1/1234.pdf |
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| Registros recuperados: 12 | |
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