Resistance to Toxoplasma abortion in female goats previously exposed to Toxoplasma infection     

DL OBENDORF  P STATHAM  BL MUNDAY 《Australian veterinary journal》1990,67(6):233-234

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The influence of anticoagulant, storage temperature and time on equine plasma lactate concentration     

CM KING  RJ ROSE  DL EVANS 《Australian veterinary journal》1994,71(11):382-384

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Maintenance of acquired immunity to Trichostrongylus colubriformis in Merino sheep that are losing weight     

MFJ VAN  HOUTERT  DL WATSON  IA BARGER 《Australian veterinary journal》1995,72(8):301-303

SUMMARY The effect of loss of weight on maintenance of acquired immunity to Trichostrongylus colubriformis in Merino sheep was assessed in 2 experiments. Adult Merino sheep with previously acquired immunity to T colubriformis were housed in individual pens. Sheep were infected 3 times weekly with 2000 T colubriformis larvae. A diet based on chopped oaten and lucerne hay (experiment 1) or a pelleted diet based on lucerne hay and grain products (experiment 2), was offered in amounts to sustain a moderate gain in body weight, or was reduced step-wise to cause a loss in body weight. Worm egg counts were determined weekly. The reduction in feed on offer resulted in a mean weight loss of 4.0 kg over 9 weeks (experiment 1) or 4.8 kg over 7 weeks (experiment 2). Based on worm egg counts, there was no indication of a change in immunity to T colubriformis in either of the experiments. These results suggest that acquired immunity to T colubriformis in adult sheep that are exposed to infection is maintained during periods of moderate loss of weight associated with inadequate nutrition.  相似文献   

Reducing the effects of clover disease by strategic grazing of pastures     

DL LITTLE 《Australian veterinary journal》1996,73(5):192-193

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Immunomagnetic Selection of Acrosome-reacted Bovine Spermatozoa Using Anti-acrosin Antibodies     

CA Thomas  DL Garner  TV McCormick 《Reproduction in domestic animals》1996,31(2):373-378

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Supplementation with Phaseolus vulgaris Leaves Improves Metabolic Alterations Induced by High-Fat/Fructose Diet in Rats Under Time-Restricted Feeding     

Ramírez-Venegas  G.  De Ita-Pérez  DL.  Díaz-Muñoz  M.  Méndez  I.  García-Gasca  T.  Ahumada-Solórzano  M.  Zambrano-Estrada  X.  Vázquez-Martínez  O.  Guzmán-Maldonado  H.  Luna-Moreno  D. 《Plant foods for human nutrition (Dordrecht, Netherlands)》2021,76(3):297-303

Plant Foods for Human Nutrition - Time-restricted feeding and food enriched in polyphenols are strategies to prevent or reduce metabolic disorders. Bean leaves (Phaseolus vulgaris L.) are a...  相似文献   

Number,causes and destinations of horses leaving the Australian Thoroughbred and Standardbred racing industries     

PC Thomson  AR Hayek  B Jones  DL Evans  PD McGreevy 《Australian veterinary journal》2014,92(8):303-311

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Paleoatmospheric signatures in neogene fossil leaves   总被引：1，自引：0，他引：1  

Van Der Burgh J  Visscher H  Dilcher DL  Kürschner WM 《Science (New York, N.Y.)》1993,260(5115):1788-1790

An increase in the atmospheric carbon dioxide (CO(2)) concentration results in a decrease in the number of leaf stomata. This relation is known both from historical observations of vegetation over the past 200 years and from experimental manipulations of microenvironments. Evidence from stomatal frequencies of fossil Quercus petraea leaves indicates that this relation can be applied as a bioindicator for changes in paleoatmospheric CO(2) concentrations during the last 10 million years. The data suggest that late Neogene CO(2) concentrations fluctuated between about 280 and 370 parts per million by volume.  相似文献   

Archaefructaceae, a new basal angiosperm family   总被引：1，自引：0，他引：1  

Sun G  Ji Q  Dilcher DL  Zheng S  Nixon KC  Wang X 《Science (New York, N.Y.)》2002,296(5569):899-904

Archaefructaceae is proposed as a new basal angiosperm family of herbaceous aquatic plants. This family consists of the fossils Archaefructus liaoningensis and A. sinensis sp. nov. Complete plants from roots to fertile shoots are known. Their age is a minimum of 124.6 million years from the Yixian Formation, Liaoning, China. They are a sister clade to all angiosperms when their characters are included in a combined three-gene molecular and morphological analysis. Their reproductive axes lack petals and sepals and bear stamens in pairs below conduplicate carpels.  相似文献   

Temperature-induced momentum-dependent spectral weight transfer in Bi2Sr2CaCu2O8+delta     

Z Shen  PJ White  DL Feng  C Kim  GD Gu  H Ikeda  R Yoshizaki  N Koshizuka 《Science (New York, N.Y.)》1998,280(5361):259-262

Angle-resolved photoemission data from the cuprate superconductor Bi2Sr2CaCu2O8+delta above and below the superconducting transition temperature Tc reveal momentum-dependent changes that extend up to an energy of about 0.3 electron volt, or 40kTc (where k is the Boltzmann constant). The data suggest an anomalous transfer of spectral weight from one momentum to another, involving a sizable momentum transfer Q approximately (0.45pi, 0). The observed Q is intriguingly near the charge-order periodicity required if fluctuating charge stripes are present.  相似文献