Selenium concentration in the blood of ruminants grazing in Northern New South Wales. 1. Analysis of samples collected in the National Brucellosis Eradication Scheme

1981 ◽  
Vol 32 (3) ◽  
pp. 511 ◽  
Author(s):  
JP Langlands ◽  
JF Wilkins ◽  
JE Bowles ◽  
AJ Smith ◽  
RF Webb
Keyword(s):  
New South ◽  
New South Wales ◽  
Selenium Concentration ◽  
Selenium Status ◽  
Bovine Blood ◽  
Average Standard Deviation ◽  
Grazing Cattle ◽  
South Wales ◽  
Bovine Plasma ◽  
Survey Results

Bovine blood samples collected for the Brucellosis Eradication Scheme were analysed for selenium as a means of surveying the selenium status of grazing cattle in 10 Pastures Protection Board areas of northern New South Wales. Sources of error were also examined. The average standard deviation of repeat samplings from the same farm was �0.019�g selenium ml-1 and the seasonal variation in blood selenium concentration appeared to be relatively small. Relationships were calculated for predicting the selenium concentration in bovine plasma and liver, and in ovine whole blood, plasma and liver, from the selenium concentration of bovine blood; they were used to extend the survey results to grazing sheep. Samples were collected from 794 farms, and there were significant differences between Pastures Protection Board areas. Cattle in the Glen Innes and Armidale areas had the lowest selenium status with 26 and 14% respectively of herds having blood selenium concentrations = 0.02 �g selenium ml-1.

Selenium concentration in the blood of ruminants grazing in northern New South Wales. 3. Relationship between blood concentration and the response in liveweight of grazing cattle given a selenium supplement

1989 ◽  
Vol 40 (5) ◽  
pp. 1075 ◽  
Author(s):  
JP Langlands ◽  
GE Donald ◽  
JE Bowles ◽  
AJ Smith
Keyword(s):  
Growth Rate ◽  
New England ◽  
Whole Blood ◽  
New South ◽  
New South Wales ◽  
Selenium Concentration ◽  
Grazing Cattle ◽  
South Wales ◽  
History Of ◽  
Commercial Farms

Approximately 700 yearling (Experiment 1) or unweaned (Experiment 2) cattle grazed commercial farms on the New England Tablelands of New South Wales, and were supplemented or not supplemented with selenium (Se). Whole blood and plasma Se concentrations, and liveweight gains were measured over periods of 3-7 months. In a third experiment, 96 castrated male weaned calves on a farm with a long history of unthriftiness were allocated to four groups, and were supplemented with either Se or copper in a factorial design.In Experiments 1 and 2, mean whole blood and plasma Se concentrations of unsupplemented animals on individual farms ranged from 0.004 to 0.139, and from 0.002 to 0.058 8g Se/ml respectively, but growth rates of only two of the twenty herds responded significantly to Se supplementation, and both showed diarrhoea and ill thrift at the start of the experiment. The herd in Experiment 3 also showed ill thrift, and growth rate responded to supplementation with Se, but copper depressed growth. Se concentrations in blood and plasma were generally poor indicators of responsiveness. Possible reasons are suggested.

Management of Acyrthosiphon kondoi Shinji, blue-green aphid, and Therioaphis trifolii (Monell) f. maculata, spotted alfalfa aphid, by grazing and cutting lucerne

1980 ◽  
Vol 20 (107) ◽  
pp. 710 ◽  
Author(s):  
AL Bishop ◽  
LR Greenup ◽  
RH Holtkamp
Keyword(s):  
Direct Effect ◽  
New South ◽  
New South Wales ◽  
Aphid Species ◽  
Grazing Cattle ◽  
South Wales ◽  
Light Medium

Three experiments were carried out in New South Wales to assess the effects of grazing, forage harvesting and haymaking on populations of blue-green aphid (BGA) and spotted alfalfa aphid (SAA) and some of their predators. In experiment 1, at Tamworth, grazing by sheep at light, medium and heavy intensities reduced BGA numbers after 10 days by 52%, 74% and 93%, respectively, from the ungrazed control in dryland Hunter River lucerne. Grazing had no significant effect on the numbers of SAA and had little direct effect on the small numbers of predators present. A resurgence of both aphid species resulted in numbers significantly higher on regrowth in grazed areas than in the area left ungrazed. In experiment 2, at Tocal, grazing cattle on irrigated CUF101 at light, medium and heavy rates initially reduced BGA numbers by 30%, 53% and 75%, respectively, from their untreated levels. Grazing had little direct effect on the low number of predators present. In experiment 3, forage harvesting and mowing for hay reduced BGA and its predators more than did grazing at normal rates. It was concluded that while grazing or harvesting may reduce aphid numbers and damage initially, problems may result on regrowth.

Selenium concentration in the blood of ruminants grazing in Northern New South Wales. 2. Relationship with geological, pedological and other variables

1981 ◽  
Vol 32 (3) ◽  
pp. 523 ◽  
Author(s):  
JP Langlands ◽  
JE Bowles ◽  
AJ Smith ◽  
GE Donald
Keyword(s):  
Soil Type ◽  
New South ◽  
New South Wales ◽  
Selenium Concentration ◽  
Cattle Grazing ◽  
Parent Material ◽  
Igneous Rocks ◽  
Podzolic Soils ◽  
South Wales ◽  
Low Concentrations

Selenium concentrations in blood from cattle from 794 farms in northern New South Wales were classified on the basis of underlying parent material, soil type, altitude and rainfall. Blood selenium concentrations declined from west to east, and with increasing rainfall and altitude; low concentrations were particularly evident on both acid and basic igneous rocks. There were significant differences between basalts in different locations and between particular plutonic bodies. Cattle grazing on soils with contrasting and gradational profiles generally had lower selenium concentrations than those grazing on soils with uniform profiles. Podzolic soils and chocolate-prairie and kraznozem-chocolate soil associations were present in areas with low blood selenium concentrations.

scholarly journals Occurrence of Passiflora Latent Carlavirus in Cultivated and Wild Passiflora Species in Australia

Plant Disease ◽  
1997 ◽  
Vol 81 (4) ◽  
pp. 348-350 ◽  
Author(s):  
R. D. Pares ◽  
L. V. Gunn ◽  
E. N. Keskula ◽  
A. B. Martin ◽  
D. S. Teakle
Keyword(s):  
United States ◽  
Immunoelectron Microscopy ◽  
Inclusion Bodies ◽  
New South ◽  
New South Wales ◽  
The United States ◽  
Passiflora Edulis ◽  
South Wales ◽  
Commercial Cultivars ◽  
Survey Results

A carlavirus was found to be widespread in commercial passionfruit (Passiflora edulis) plantings in New South Wales and Queensland. The particles observed were flexuous rods with mean dimensions of 651 × 12 nm. The particles often occurred in cells as aggregates but were never associated with pinwheel inclusion bodies, as is typical with passionfruit woodiness potyvirus. The particles showed a strong affinity (by immunoelectron microscopy) for antiserum prepared against Passiflora latent carlavirus (PLV) from Germany but increasingly less affinity for antisera against potato viruses S and M and PLV from the United States. Survey results indicated that PLV has been present in Australian passionfruit for more than 10 years and is widespread in most commercial cultivars in New South Wales and Queensland. The virus was twice found in wild Passiflora suberosa, once in wild P. subpeltata, and once in a feral seedling of P. edulis near an infected planting of P. edulis.

Planning Reform as a Catalyst to Advance E-Planning

2015 ◽  
pp. 281-305 ◽  
Author(s):  
Wayne Williamson ◽  
Paul McFarland
Keyword(s):  
Online Survey ◽  
New Technologies ◽  
New South ◽  
New South Wales ◽  
Planning System ◽  
South Wales ◽  
Current Attitude ◽  
Survey Results ◽  
It Applications ◽  
Planning Staff

The limited research on e-Planning in Australia, a perceived slow take up of e-Planning in the New South Wales (NSW), planning system and the release of a set of e-Planning recommendations as part of planning reform packages in 2007 and 2012 are the main reasons for conducting this research. The aim of this chapter is to determine the current attitude of planners towards e-Planning. To achieve this, the authors undertook to discover the attitudes of planners towards e-Planning. An online survey of planning staff was conducted in 2008. The survey results confirmed that planners in the NSW planning system are using a wide variety of IT applications. Participants demonstrated a strong understanding of e-Planning tools and the wider implications for the planning system. Overall, this research found the attitude of planners to be supportive of new technologies and of the use of e-Planning.

Planning Reform as a Catalyst to Advance E-Planning

2016 ◽  
pp. 1918-1943
Author(s):  
Wayne Williamson ◽  
Paul McFarland
Keyword(s):  
Online Survey ◽  
New Technologies ◽  
New South ◽  
New South Wales ◽  
Planning System ◽  
South Wales ◽  
Current Attitude ◽  
Survey Results ◽  
It Applications ◽  
Planning Staff

The limited research on e-Planning in Australia, a perceived slow take up of e-Planning in the New South Wales (NSW), planning system and the release of a set of e-Planning recommendations as part of planning reform packages in 2007 and 2012 are the main reasons for conducting this research. The aim of this chapter is to determine the current attitude of planners towards e-Planning. To achieve this, the authors undertook to discover the attitudes of planners towards e-Planning. An online survey of planning staff was conducted in 2008. The survey results confirmed that planners in the NSW planning system are using a wide variety of IT applications. Participants demonstrated a strong understanding of e-Planning tools and the wider implications for the planning system. Overall, this research found the attitude of planners to be supportive of new technologies and of the use of e-Planning.

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