The clinical susceptibility of sheep to four Australian serotypes of bluetongue virus     

M. F. UREN  T. D. ST GEORGE 《Australian veterinary journal》1985,62(5):175-176

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The light reaction in the bleaching of rhodopsin     

WALD G  DURELL J  ST GEORGE CC 《Science (New York, N.Y.)》1950,111(2877):179-181

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The Fraser River plume: some preliminary observations on the distribution of juvenile salmon, herring, and their prey     

MICHAEL A. ST. JOHN  J. STEVENSON MACDONALD  PAUL J. HARRISON  RICHARD J. BEAMISH  EDWARD CHOROMANSKI 《Fisheries Oceanography》1992,1(2):153-162

Zooplankton and fish densities in the southern Strait of Georgia were observed to coincide with variations in surface salinities resulting from the outflow of the Fraser River. Vertical net hauls in the euphotic zone revealed that copepods, amphipods, and euphausiids were significantly more abundant per m³ in the brackish estuarine plume (surface salinities - 10–15 ppt) when compared to the area covered by the freshwater of the Fraser River plume (0–10 ppt) and the region of the Strait of Georgia (25–30 ppt) unaffected by the outflow of the Fraser River.
The estuarine and riverine plumes had significantly higher fish densities (adult and juvenile herring, and juvenile salmonids [excluding chinook]) than the Strait of Georgia region, with no significant differences in densities of juvenile chinook salmon observed between regions. The highest catches of juvenile salmonids were at the boundary between the estuarine plume and the Strait of Georgia. Zooplankton found in the stomach contents of both adult and juvenile herring suggested that the herring were filter-feeding on the zooplankton in the estuarine plume. Juvenile salmonids fed primarily on small unidentifiable juvenile fish. The existence of increased densities of prey items in the estuarine plume is proposed to be the primary mechanism resulting in increased residence time in this region by outmigrating juvenile salmonids. Utilization of aggregated zooplankton could lead to increased salmonid growth rates and therefore to enhanced survival of individuals utilizing the Fraser River plume environment.  相似文献   

Survival of salmon lice, Lepeophtheirus salmonis Krøyer, on Arctic charr, Salvelinus alpinus (L.), in fresh water     

B Finstad  P A Bjørn  ST Nilsen 《Aquaculture Research》1995,26(10):791-795

The survival of salmon lice. Lepeophtheirus salmonis (Krøyer) on Arctic charr. Salvelinus alpinus (L.). in fresh water was studied. The results showed that salmon lice were able to survive for up to 3 weeks, in contrast with previous published information that the parasite is quickly shed when the fish enters fresh water.  相似文献   

Metabolic studies with chloropropylate acaricide in the dairy cow     

L E ST John  D J Lisk 《Journal of agricultural and food chemistry》1973,21(4):644-646

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ISOLATION OF A BOVINE STRAIN OF MYXOVIRUS PARA-INFLUENZA TYPE 3 IN AUSTRALIA     

T. D. ST. GEORGE B.V.Sc.  E. L. FRENCH MSc.  Ph.D. 《Australian veterinary journal》1966,42(11):438-439

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Intracranial nerve root tumors; report of a neoplasm (neurofibroma) of the trigeminal nerve in a dog     

ST CLAIR LE  SAFANIE AH 《Journal of the American Veterinary Medical Association》1957,131(4):188-191

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Lumbar epidural anesthesia in cattle     

HARDENBROOK HJ  ST CLAIR LE 《Journal of the American Veterinary Medical Association》1956,129(9):405-409

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Preliminary trials of the BioBaler working in Brazilian eucalypt plantations     

Saulo PS Guerra  Guilherme Oguri  Marcelo S Denadai  Maura ST Esperancini 《Southern Forests》2018,80(2):131-135

The increasing demand for renewable energy feedstock has raised interest in growing eucalypts for fuel wood production, which is achieved by establishing very dense plantations cut every 18–24 months. The high moisture content of fresh Eucalyptus may handicap cut-and-chip operations, and offers a unique opportunity for supply chains based on baling. Therefore, the Canadian-made BioBaler was tested in Brazil on a eucalypt energy plantation, as well as on the resprouts generated by a conventional pulpwood plantation after severe frost damage. The BioBaler coped well with both crops, achieving high productivity levels: 7.1 and 3.3 t h^?1 in the energy plantation and the failed crop treatments, respectively. Harvesting cost was estimated at €13 t^?1 and €26 t^?1 for the energy plantation and the failed crop, respectively. Productivity and harvesting cost were comparable with those reported in previous studies conducted in other countries on similar crops. Productivity was directly proportional to field stocking. Future studies should test the machine on a wider range of work conditions and include bale extraction, storage, processing and transportation, in order to estimate an overall supply chain cost and allow direct comparison with alternative options.  相似文献   

Effect of rapamycin treatment during post‐activation and/or in vitro culture on embryonic development after parthenogenesis and in vitro fertilization in pigs          下载免费PDF全文

F Elahi  H Lee  J Lee  ST Lee  CK Park  S‐H Hyun  E Lee 《Reproduction in domestic animals》2017,52(5):741-748

This study investigated the effects of early induction of autophagy on embryonic development in pigs. For this, oocytes or embryos were treated with an autophagy inducer, rapamycin (RP), during post‐activation (Pa), in vitro fertilization (IVF) and/or in vitro culture (IVC). When parthenogenesis (PA) embryos were untreated (control) or treated with various concentrations of RP for 4 hr during Pa, 100 nm RP showed a higher blastocyst formation (48.8 ± 2.7%) than the control (34.6 ± 3.0%). When PA embryos were treated during the first 24 hr of IVC, blastocyst formation was increased (p < .05) by 1 and 10 nm RP (61.9 ± 3.0 and 59.6 ± 3.0%, respectively) compared to the control (43.2 ± 1.8%) and 100 nm RP (47.8 ± 3.2%), with a higher embryo cleavage in response to 10 nm RP (87.3 ± 2.4%) than the control (74.1 ± 3.2%). RP treatment during IVC and Pa + IVC showed increased blastocyst formation (44.7 ± 2.5 and 44.1 ± 2.0%, respectively) compared to the control (33.2 ± 2.0%). In addition, RP treatment during Pa and/or IVC increased glutathione content and inversely reduced reactive oxygen species. In IVF, RP treatment for 6 hr during IVF significantly increased embryonic development (34.0 ± 2.6%) compared to the control (24.8 ± 1.6%), but treatment during IVC for 24 hr with RP did not (23.0 ± 3.8%). Autophagy was significantly increased in PA oocytes by the RP treatment during Pa but not altered by the treatment during the first 24 hr of IVC. Overall, RP treatment positively regulated the pre‐implantation development of pig embryos, probably by regulating cellular redox state and stimulating autophagy.  相似文献