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Swine Fever And African Swine Fever, V W. Smith

Journal of the Department of Agriculture, Western Australia, Series 4

PIGS may become infected by viruses which also cause disease in other animals (for instance foot-and-mouth disease) but there are two virus diseases worthy of special mention because they cause clinical disease in pigs only.

Coccidiosis In Lambs On The South Coast, A J. Hadlow

Journal of the Department of Agriculture, Western Australia, Series 4

Outbreaks of coccidiosis among autumn-born lambs on the south coast have approached epidemic proportions this year.

Similar outbreaks are likely among late winter-spring born lambs. This article describes the disease and suggests measures for prevention and treatment.

Practical Disease Prevention In The Pig Herd, R B. Richards

Journal of the Department of Agriculture, Western Australia, Series 4

DISEASES cause loss in pig production through mortality, poor growth rate and reduced food conversion efficiency.

The cost of drugs and expert advice causes further economic loss, and the dangers to public health and to other livestock in a community are serious and often-neglected considerations.

Pig Husbandry Research In Western Australia, N W. Godfrey

Journal of the Department of Agriculture, Western Australia, Series 4

IN the past it has not been possible to undertake research work with pigs on any appreciable scale in Western Australia.

A small herd has been maintained at Denmark Research Station for some years as a demonstration side-line unit, run in conjunction with the dairy herd.

A number of very useful trials have been carried out with the Denmark herd, but its size has limited the comprehensiveness of the type of research work that could be undertaken.

Breeding Better Pigs, B M. Goss

Journal of the Department of Agriculture, Western Australia, Series 4

IN the past, pig breeders have tended to select animals on physical characteristics, many of which have little or no relevance to economy of production.

Selection techniques now available open up the possibility of improved pig production efficiency.

Sheep Drenching Programms, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Drenching of sheep to prevent build-up of worm infestations is commonly practised on many properties in the agricultural districts of Western Australia. This is called strategic drenching.

Survival Feeding Of Cattle During Drought, D J. Barker, J. T. Stoate

Journal of the Department of Agriculture, Western Australia, Series 4

TO obtain adequate returns from the grazing of developed land, which has involved considerable capital investment, farmers may carry stock at rates which, though normally satisfactory, are too high in exceptionally poor seasons.

A look at some slternatives and their costs to maintaine the herd in drought.

Sheep Management During Drought, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Experiencing a drought can be likened to fighting a war.

This article looks at alternatives and costs of maintaining the flock during the drought.

Sheep Worm Control And Lambing Time In High Rainfall Areas, F C. Wilkinson

Journal of the Department of Agriculture, Western Australia, Series 4

Indications from a continuing sheep trial at Margaret River are that farmers in high rainfall areas could increase stocking rates and lamb growth rates by lambing in September- October rather than July-August.

The results also indicate that farmers in the area may be spending more than necessary on worm control.

Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium : Berry Poison (Gastrolobium Parvifolium Benth.) Spike Poison (Gastrolobium Glaucum C.A. Gardn.) Hook-Point Poison (Gastrolobium Hamulosum Meissn.) Scale-Leaf Poison (Gastrolobium Appressum C.A. Gardn.), T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

This article deals with four species which, apart from spike poison, may be distinguished by their small leaf size. Scale-leaf poison is found in the Irwin district, and the other three are present in the Avon district.

Some Parameters Of The Second-Order Conditioning Of Fear In Rats, Alan Kamil

Papers in Behavior in Biological Sciences

The effects of CS1 duration, partial reinforcement, and trace conditioning on second-order conditioned suppression were investigated, employing 64 rats as Ss. In Experiment 1, the clearest second-order conditioning was obtained when CS1 duration was the same during both the first- and the second-order conditioning phases of the experiment. In Experiment 2, somewhat better second-order conditioning was obtained when first-order conditioning had been under conditions of partial reinforcement, delay CS-US pairing. In neither experiment were CS1 suppression and CS2 suppression during second-order testing well correlated. This aspect of the results raised the question of the influence of nonclassical conditioning factors on …

Levels Of Calcium And Phosphorus For Growing-Finishing Swine, G. W. Libal, E. R. Peo, Jr., R. P. Andrews, P. E. Vipperman, Jr.

Department of Animal Science: Faculty Publications

The calcium and phosphorus requirements of growing-finishing swine have not been satisfactorily resolved. Recently it was suggested that levels of calcium and phosphorus needed in diets of growing-finishing (G-F) swine for optimum growth and feed conversion may be different from those needed for optimum bone development (Miller et al., 1960; Lloyd et al., 1961; Rutledge et al., 1961; Combs et al., 1966). The problem of determining calcium and phosphorus requirements is further magnified by the observation of Chapman et al. (1955) that G-F swine do not utilize plant phosphorus as efficiently as inorganic phosphorus. In …

Saltland Pastures, C V. Malcolm

Journal of the Department of Agriculture, Western Australia, Series 4

FOLLOWING THE DEVELOPMENT of Agriculture in Western Australia considerable areas of highly productive land have become salt affected to the degree that normal crops and pastures cannot be grown.*

However, species and establishment methods are available which can bring at least some of this land back into production.

Cattle Poisoning Related To The Blue-Green Alga Polycystis Aeruginosa Kutz, Richard L. Meyer, John F. Brown, Robert A. Gearheart

Journal of the Arkansas Academy of Science

No abstract provided.

Indoor Versus Outdoor Calf Rearing At Three Weaning Ages, Larry J. Jorgenson

Electronic Theses and Dissertations

In order to be profitable, a dairy herb must have good heifers to meet replacement needs. According to USDA (51), these needs are substantial because 25% of the cows in an average herd must be replaced each year as they no longer return a profit. Meeting these herd replacement needs has long been a serious problem of the dairyman. Nation-wide calf loss estimates ranged between 8 and 25% with an estimated annual loss to the industry of $50 million (10). South Dakota dairymen are not immune to these mortality losses and some studies (28, 52) indicate that their losses may …

Metabolic Responses Of White Rats To Glucose Or Fructose Fed With Two Safflower Oils Containing Different Proportions Of Fatty Acid, Paula Lynn Yates

Journal of the Arkansas Academy of Science

No abstract provided.

The Effect Of A Large Reservoir On Local Government Revenue And Expenditure, Clyde T. Bates

KWRRI Research Reports

Development of a large multi-purpose reservoir within the area of their jurisdiction may affect property ta.x revenue and expenditure of county governments and school districts. Privately owned land sold to a federally sponsored reservoir is not subject to property taxes because of the doctrine of intergovernmental immunity. Local officials often assume that this loss of assessment will reduce their tax revenue and thereby their fiscal ability to provide an acceptable level of government services. They may also expect the influx of construction workers or the disruption of existing facilities to increase the cost of providing these services. The study approaches …

Development Of A Prediction Equation For The Placement Of Students In Seventh-Grade Life Science, Lloyd Harley Barrow

Dissertations and Theses @ UNI

It was the purpose of this investigation to: (1) determine the relative value of intelligence quotient, Iowa Tests of Basic Skills composite standard score, Iowa Tests of Basic Skills reading comprehension standard score, final sixth-grade science mark, and the Reed General Science Test score in predicting the life science mark; (2) present the findings that would provide the bast possible estimate of success in life science; and (3) compare the prediction equation for the enrichment group with the non-enrichment group's prediction equation. The study involved students of seventh-grade life science for the school years 1963 through 1968, who were enrolled …

Plants For Classroom Use, Elizabeth Wagner Reed

Journal of the Minnesota Academy of Science

The importance of having living plants in the classroom is emphasized. Ways of coping with environmental problems of classroom heal and dryness are outlined, including the making of terraria. Varieties of plants found suitable for the classroom and laboratory are described.

Mayfly Cholinesterase: Solubilization And Partial Purification, Burton C. Lidgerding, Donald J. Kraft

Journal of the Minnesota Academy of Science

A method hos been developed for the solubilization of cholinesterase from whole mayflies (Hexagenia bilineata, Soy). Solubilization is enhanced through the use of: (1) protamine sulfate, (2) sephadex, (3) sodium taurocholate, and (4) ammonium sulfate-sodium bicarbonate treatments. Partial purification of the enzyme is also reported. Fractions representing a final activity of 246 units and a purification factor of 17.79 are presented.

Control Of Insects In Cotton, D G. Shedley, D. L. Hardy, P. J. Michael

Journal of the Department of Agriculture, Western Australia, Series 4

Results of two experiments at the Ord Irrigation area in 1968 indicate that farmers may be spending more than necessary to obtain economic control of cotton pests in some seasons.

One experiment clearly demonstrated the relationship between low insect numbers and improved cotton yields—the second indicated that a moderate but well timed spray schedule, especially during the early part of the season, can result in more economic insect control than an intensive spray schedule.

Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium : Champion Bay Poison (G. Oxylobioides Benth.), Sandplain Poison (G. Microcarpum Meissn.), Cluster Poison (G. Bennettsianum C.A. Gardn.), Hutt River Poison (G. Propinquum C.A. Gardn.), Gilbernine Poison (G. Rotundifolium Meissn.), T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THIS article deals with five species of the genus Gastrolobium. The plants look rather similar so in the past have often been confused. They occur over a considerable area of the agricultural region of Western Australia.

Bovine Tuberculosis Control In Western Australia : Past, Present And Future, M R. Gardiner

Journal of the Department of Agriculture, Western Australia, Series 4

TWENTY YEARS AGO, tuberculosis was a widespread and serious disease in the dairy cattle of Western Australia.

Besides having a marked depressing effect on the economy of the dairying industry, bovine tuberculosis was a constant hazard to humans coming in contact with it.

Poison Plants Of Western Australia : The Toxic Species Of The Genera Gastrolobium And Oxylobium : Net-Leaf Poison (O. Racemosum (Turcz.) C.A. Gardn.), Brother-Brother (O. Tetragonophyllum E. Pritzel), Rigid-Leaf Poison (O. Rigidum C.A. Gardn.), Slender Poison (O. Heterophyllum (Turcz.) Benth.), Round-Leaf Poison (G. Pycnostachyum Benth.), T E H Aplin

Journal of the Department of Agriculture, Western Australia, Series 4

THIS article deals with five toxic species, all of which are found in the Eyre district of the South-Western region of Western Australia.

Drenches For Treatment And Control Of Worms In Sheep : 1969 : Efficiency, Cost And Safety, W A. Halhead, G. De Chaneet

Journal of the Department of Agriculture, Western Australia, Series 4

THERE is a wide variation in the efficiency and cost of drugs for worm control in sheep.

Generally, the higher the efficiency, the greater the cost. Prices are subject to change, and may vary with the amount of drench purchased.

Disposal Of Effluent From Piggeries, P Mcnamara

Journal of the Department of Agriculture, Western Australia, Series 4

ONE of the major problems associated with an intensive piggery is the disposal of the effluent; the nearer the piggery is to urban areas, the greater the problem.

Electrophoretic Patterns Of Plasma Proteins And Hemoglobin Of The Pigeon Columba Liva Domestica, Lloyd D. Snow, Earl L. Hanebrink, Bob D. Johnson

Journal of the Arkansas Academy of Science

No abstract provided.

Survey Of The Helminth Parasites Of Selected Game Fishes Of Lake Fort Smith, Arkansas, David A. Becker, Walter C. Houghton

Journal of the Arkansas Academy of Science

No abstract provided.

Freshwater Algae Of Arkansas, Richard L. Meyer

Journal of the Arkansas Academy of Science

No abstract provided.

Dardanelle Reservoir Illinois Bayou Embayment Background Survey, Clarence B. Sinclair

Journal of the Arkansas Academy of Science

No abstract provided.