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D.a. Graber - One of the best experts on this subject based on the ideXlab platform.
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True metabolizable energy of moist-soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P
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true metabolizable energy of moist soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P<0.05) for beakrush (Rynchospora corniculata; 1.86 kcal/g), paspalum (Paspalum laeve; 1.57 kcal/g), and nodding or curltop ladysthumb smartweed (Polygonum lapathifolium; 1.52 kcal/g). TME values determined for moist-soil seeds in this study will allow managers to accurately estimate carrying capacity of waterfowl habitats.
J.m. Checkett - One of the best experts on this subject based on the ideXlab platform.
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True metabolizable energy of moist-soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P
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true metabolizable energy of moist soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P<0.05) for beakrush (Rynchospora corniculata; 1.86 kcal/g), paspalum (Paspalum laeve; 1.57 kcal/g), and nodding or curltop ladysthumb smartweed (Polygonum lapathifolium; 1.52 kcal/g). TME values determined for moist-soil seeds in this study will allow managers to accurately estimate carrying capacity of waterfowl habitats.
M.j. Petrie - One of the best experts on this subject based on the ideXlab platform.
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True metabolizable energy of moist-soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P
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true metabolizable energy of moist soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P<0.05) for beakrush (Rynchospora corniculata; 1.86 kcal/g), paspalum (Paspalum laeve; 1.57 kcal/g), and nodding or curltop ladysthumb smartweed (Polygonum lapathifolium; 1.52 kcal/g). TME values determined for moist-soil seeds in this study will allow managers to accurately estimate carrying capacity of waterfowl habitats.
Ronald D. Drobney - One of the best experts on this subject based on the ideXlab platform.
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True metabolizable energy of moist-soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P
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true metabolizable energy of moist soil seeds
Wildlife Society Bulletin, 2002Co-Authors: J.m. Checkett, Ronald D. Drobney, M.j. Petrie, D.a. GraberAbstract:Habitat objectives for migrating and wintering waterfowl are often established by converting population energy demands into an equivalent measure of foraging habitat. In some areas, seeds produced from moist-soil plants provide a significant proportion of the energy available to waterfowl. To accurately establish habitat objectives for migrating and wintering waterfowl, managers must estimate seed production from moist-soil plants and have information on metabolizable energy (ME) of moist-soil seeds. Although methods for estimating seed production have been developed, ME has been determined for few natural seeds. We determined true metabolizable energy (TME) of 10 moist-soil seeds commonly consumed by wintering and migrating ducks. TME estimates were similar (P>0.05) for hairy crabgrass (Digitaria sanguinalis; 3.09 kcal/g), little hairy crabgrass (D. ischaemum; 3.10 kcal/g), pigweed (Amaranthus spp.; 2.97 kcal/g), yellow foxtail (Setaria lutescens; 2.88 kcal/g), fall Panicum (Panicum Dichotomiflorum; 2.75 kcal/g), curly dock (Rumex crispus; 2.68 kcal/g), and wild millet (Echinochloa crusgalli; 2.61 kcal/g), but less (P<0.05) for beakrush (Rynchospora corniculata; 1.86 kcal/g), paspalum (Paspalum laeve; 1.57 kcal/g), and nodding or curltop ladysthumb smartweed (Polygonum lapathifolium; 1.52 kcal/g). TME values determined for moist-soil seeds in this study will allow managers to accurately estimate carrying capacity of waterfowl habitats.
Patrick T. Holland - One of the best experts on this subject based on the ideXlab platform.
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Isolation and structure elucidation of dichotomin, a furostanol saponin implicated in hepatogenous photosensitization of sheep grazing Panicum Dichotomiflorum
Journal of Agricultural and Food Chemistry, 1993Co-Authors: Sarah C. Munday, Alistair L. Wilkins, Christopher O. Miles, Patrick T. HollandAbstract:Dichotomin, a furostanol saponin derived from diosgenin, has been isolated from Panicum Dichotomiflorum and its structure determined by mass spectrometry, one- and two-dimensional NMR techniques, and acidic and enzymatic hydrolyses to known compounds. The 1 H and 13 C NMR resonances for dichotomin (1a) were assigned by analogy with those for its 26-deglucosoylated spirostanol derivative (2), which were unambiguously assigned in a series of one- and two-dimensional NMR experiments. Revisions to the published 13 C NMR assignments of 2 are presented
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Identification of the calcium salt of epismilagenin .beta.-D-glucuronide in the bile crystals of sheep affected by Panicum Dichotomiflorum and Panicum schinzii toxicoses
Journal of Agricultural and Food Chemistry, 1992Co-Authors: Christopher O. Miles, Alistair L. Wilkins, Sarah C. Munday, Patrick T. Holland, Barry L. Smith, Malcolm J. Lancaster, Peter P. EmblingAbstract:Crystals isolated from the bile of sheep affected by hepatogenous photosensitization after grazing Panicum Dichotomiflorum or Panicum schinzii were soluble in acetic acid but essentially insoluble in common organic solvents. The main component of the crystals was identified by acidic and enzymatic hydrolysis, GC-MS, LSIMS, TLC, 1 H and 13 C NMR spectroscopy, and X-ray analysis as the calcium salt of epismilagenin β-D-glucuronide. The 13 C NMR spectrum was fully assigned, and the structure confirmed by comparison with model compounds (17-oxoetiocholan-3α-ol glucuronide and epismilagenin)
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identification of a sapogenin glucuronide in the bile of sheep affected by Panicum Dichotomiflorum toxicosis
New Zealand Veterinary Journal, 1991Co-Authors: Christopher O. Miles, Sarah C. Munday, Patrick T. Holland, Barry L. Smith, Peter P. Embling, A L WilkinsAbstract:Abstract Throughout the world, several hepatogenous photosensitisation diseases of ruminants are characterised by the presence of birefringent crystals in and about the bile ducts. These include photosensitisations caused by Tribulus terrestris (1) (geeldikkop of sheep in South Africa), Nurthecium ossifrugum (2).(alveld of lambs in Norway), Agave lecheguilla (3) (4), Brachiaria decumbens (5) and several Panicum species such as P miliaceum (6), P. coloratum (7), P. schinzii (8) (9), and P. Dichotomiflorum (10).
