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List Of Department Of Agriculture Publications, Department Of Agriculture, Western Australia

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

THE following publications are available on application from the Department of Agriculture.

Most of the bulletins listed are reprints from the Journal of Agriculture and are free of charge (except where a price is stated).

The date of original publication of reprints is stated to facilitate reference to bound volumes of the Journal.

Agriculture In Western Australia. 3. The Economic Potential Of The Wongan-Ballidu Shire. Part 1, G D. Oliver, A. W. Hogstrom

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

IN West Australian agriculture there is a considerable "backlog" of information available to farmers which is not being used in practical farming. This, of course, is true of agricultural industries anywhere in the world.

This "backlog" results in a big difference in productivity between the best farms and the "average" farms in each district.

This article is a simple economic study of the potential of one shire of Western Australia.

How To Identify Twin-Born Lambs, G T. Halpin, P. Nelson

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

IN the past few years it has become widely accepted that the ability to produce twin or multiple lambs is a heritable characteristic.

This means that breeding from sheep born as twins should give more multiple births and higher lambing percentages than breeding from sheep born as single lambs.

Mastitis : Prevention And Control. 3. Implementing The Mastitis Control Programme, F C. Wilkinson

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

FARMERS who have followed the first two articles in this series should by now have established the recommended milking routine and be familiar with it.

Sharpening And Care Of Mulesing Shears, A L. Jones

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

THIS year will probably see more sheep mulesed in Western Australia than ever before.

It is not surprising, therefore, that some improvements have been made to the standard mulesing shears.

New modified shears make mulesing easier —but they must be properly sharpened.

Copper In West Australian Butter, D N. Tulloch

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

A SURVEY was conducted throughout 1963 to determine the copper content of West Australian butter.

Samples were collected about three times monthly from each of the seven W.A. butter factories and examined in the Dairy Laboratory of the Department of Agriculture.

Lot Feeding Of Beef Cattle. 1. Introduction, W J O Wilkie

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

"LOT FEEDING" of cattle is the name given to the operation of bringing cattle in from pasture and giving them the total ration they are to receive in open or partly roofed yards.

The roof would be intended to protect the feed trough and not the cattle.

Milking Machine Efficiency And Shed Husbandry Practices, G R. Olney

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

MILKING machine efficiency on dairy farms in the Bridgetown, Greenbushes, Balingup, Boyup Brook and Nannup areas was the subject of a recent testing survey.

During the survey 106 machines were tested and the results assessed statistically to gauge the general level of machine efficiency in these districts.

Kimberley Research Station Progress Report, 1964 : Insect Pests And Insecticides, K T. Richards

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

FOR the past four years, detailed studies have been carried out in regard to the identification, status, bionomics, and control of insects and mite pests attacking the various crops grown in the Ord River Irrigation Area.

How To Care For Orphan Lambs, Stanley M. Dennis

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

WITH the current high price and shortage of sheep in W.A., farmers might consider the bother of artificially rearing orphan lambs more worthwhile than before.

Damage Caused By Hormone-Like Herbicides, G R W Meadly

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

THE discovery of the selective action of herbicides such as 2,4-D and MCPA resulted in a rapid expansion in the use of these chemicals for agricultural purposes, particularly for the control of weeds in cereal crops.

Pullorum Tested Poultry Flocks, 1965, Department Of Agriculture, Western Australia

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

PULLORUM disease has been virtually eliminated from breeding and hatchery poultry flocks in Western Australia by the annual blood-testing of all birds and the destruction of reactors.

More Light On Lamb Losses : Third And Final Report Of A Survey Of Lamb Mortalities In W.A, Stanley M. Dennis

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

DURING the past three years the Department of Agriculture's Animal Health Laboratory carried out an investigation into the causes of perinatal lamb losses.

This article records the results of this work.

Rearing Dairy Calves, R A. Bettenay

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

ON Western Australian dairy farms the wastage rate of dairy cows is probably more than 20 per cent, and this, coupled with the tendency towards bigger herds, means that well over half of the heifer calves born should be reared for herd replacements.

Control Of Lice On Poultry, B R. Vale

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

DURING February and March of 1965 some particularly heavy body lice infestations were found on fowls in both deep litter and cage units in Western Australia.

In some instances comparatively new laying cage units were involved.

The most seriously affected flocks showed marked unthriftiness and depressed egg production.

Calfhood Diseases. 2. Respiratory And Nutritional Deficiency Diseases, M R. Gardiner

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

MOST of the common organisms found in the environment of calf sheds and yards may at times be responsible for respiratory infections, to which the young animal is very susceptible.

Congenital Abnormalities In Sheep In Western Australia, Stanley M. Dennis

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

IN every flock of sheep an abnormal or deformed lamb is seen from time to time.

But in some flocks in some years the incidence of these abnormal lambs is higher than usual.

Eighth Random Sample Laying Test, 1964-65, Department Of Agriculture, Western Australia

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

EIGHTH RANDOM SAMPLE LAYING TEST, 1964-65

SIXTH PROGRESSIVE REPORT TO 31st OCTOBER, 1965

Urinary Calculus Disease Of Sheep In Western Australia, M R. Gardiner

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

THE formation of concretions in the urinary tract of rams and wethers is one of the most persistent causes of loss of sheep in Western Australia, and has been so for many years.

1965 Beef Cattle Progress Report Of Research Activities, E. F. Frolik, H. H. Kramer

Nebraska Beef Cattle Reports

Beef carcass evaluation work is designed to obtain production and carcass data on bulls, steers and heifers. One objective is to evaluate sex effects on growth and carcass traits. Another is to determine if sires rank the same in growth and carcass traits on their bull, steer and heifer progeny.

Preliminary results from the 1963 slaughter groups were reported in the 1964 Beef Cattle Progress Report. This report covers averages of 1963 and 1964 results. Results both years were similar.

Nebraska Bird Review (January 1965) 33(1), Whole Issue

Nebraska Bird Review

Table of Contents

Bird Records from Northern Nebraska during the Breeding Season...................2

Two Species of Ibis Seen in Nebraska in May, 1964 ...................6

Nesting Report, 1964 ...................9

Scissor-tailed Flycatcher Nesting in Clay County................... 14

Song Sparrow Nesting at Plattsmouth ...................14

A Changed Habitat ...................15

General Notes................... 18

Excerpts from Letters ...................19

Fall Field Day ...................20

Heritability Estimates Of Udder Disease As 5ieasured By Various Tests And Their Relationship To Each Other And To Milk Yield, Age, And Milking Tisies, G. H. Schmidt, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Paternal half-sib heritability estimates oi' milk yield, number of quarters infected with mastitis organisms, and number <>f quarters showing abnormal mill; were obtained from an analysis of milking and mastitis data of 2,865 Holstein cows. The within-herd heritability estimate for daily milk yield was 0.353 and that for the number of quarters infected with Streptococcus agalactiae 0.196. The heritability estimates for the number of quarters infected with organisms other than Streptococcus agalactiae, number of quarters infected, and number of quarters showing abnormal milk were all below 0.1.

Within-herd correlation coefficients were calculated among daily milk yield, milking data, age, …

Luteotropic Properties Of Luteinizing Hormone And Nature Of Oxytocin Induced Luteal Inhibition In Cattle, Lloyd Donaldson, William Hansel, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Fifty-three Holstein heifers were used to study the effects of oxytocin administered alone and in combination with various gonadotropins on the weights and progesterone contents of corpora lutea. Pituitary gonadotropin levels were compared in untreated and oxytocin-treated heifers at three stages of the estrous cycle.

Oxytoein injections on Days 2 through 6 significantly reduced the weights and total progesterone contents but not the progesterone concentrations of glands removed on Day 7. The concurrent administration of either purified bovine luteinizing hormone (LH) or human chorionic gonadotropin (HCG) significantly increased these parameters from the oxytocin treatment levels to normal or supra-normal values. …

Handbook Of Waterfowl Behavior: Frontmatter And Introduction, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

Acknowledgments
Contents
List of Illustrations
Background and Objectives of This Study
Value and Limitations of Behavior as a Taxonomic Tool
Biological Characteristics of the Family Anatidae

Handbook Of Waterfowl Behavior: Tribe Anseranatini (Magpie Goose), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The first subfamily and tribe of the Anatidae consists of the single genus and species Anseranas semipalmata, or magpie goose. This species deviates in almost every respect from the rest of the Anatidae, and anatomical evidence indicates that it has some affinities with the South American family of screamers, the Anhimidae (Delacour, 1954; Woolfenden, 1961). The screamers are a group of semiterrestrial birds which in turn have some of the characteristics of gallinaceous birds. It appears that the screamers and the magpie goose represent major stages in the evolution of the typical waterfowl from a gallinaceous ancestor. Besides the …

Handbook Of Waterfowl Behavior, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The present study was undertaken to test and evaluate the various taxonomic arrangements of the family, to discover some of the trends of behavioral evolution, and to provide a basis for future workers to use in naming, describing, and evaluating the behavioral patterns observed in waterfowl.

The major sexual behavior patterns of the species of Anatidae are reviewed and summarized, for the purpose of clarifying evolutionary relationships in the family, tracing the evolution of behavior patterns through various taxa, and evaluating the importance of certain behavior patterns as potential isolating mechanisms.

Species treated include:
Magpie Goose, Fulvous and Cuban Whistling …

Handbook Of Waterfowl Behavior: Tribe Dendrocygnini (Whistling Ducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The whistling, or "tree," ducks comprise a group of eight species of world-wide, though primarily tropical, distribution. A single genus, Dendrocygna, is generally accepted, and indeed the species form such a homogeneous group that it is extremely difficult to establish intrageneric differences upon which to judge probable species relationships. In most respects, whistling ducks are very gooselike, differing from geese mainly in their more specialized tracheal structure, their whistling voices, and their distinctive downy plumage patterns. They possess relatively long legs and large feet, and they can dive remarkably well.

Handbook Of Waterfowl Behavior: Tribe Anserini (Swans And True Geese), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The swans and true geese of the present tribe include about 21 species which are primarily temperate and arctic in distribution, with most forms occurring in the Northern Hemisphere. They are generally large grazing or dabbling birds, and all are highly social and have strong family bonds. Plumage patterns are the same in both sexes and tend to be relatively simple, with visual signal characteristics generally restricted to the bill, head, and rump. For the most part the species are very vocal, and in the true geese vocalizations probably reach the highest degree of development in the entire family.

Handbook Of Waterfowl Behavior: Tribe Stictonettini (Freckled Duck), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

I include the Australian freckled duck, as the only member of a proposed tribe Stictonettini, as I originally suggested in 1960 on a tentative basis. Previously the freckled duck had been generally considered an aberrant dabbling duck with several primitive features, such as a reticulated tarsus, simple tracheal structure (illustrated in Johnsgard, 1961c), and absence of metallic plumage coloration or distinct plumage dimorphism. No hybrids have been recorded involving this species, which occurs widely but infrequently over the southern half of Australia.

Handbook Of Waterfowl Behavior: Tribe Tadornini (Sheldgeese And Shelducks), Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

The tribe includes the 16 species of sheldgeese and shelducks ("Lophonetta" and Tachyeres are here excluded from the tribe) which provide such a smooth transition from the true geese to the true ducks that it is difficult to establish a dividing line between the two groups. I believe that the line is best placed between Cereopsis on the anserine side and Cyanochen on the anatine side. Cyanochen is clearly a sheldgoose, but the plumages and voices of the sexes are practically alike, as are also their displays. Cyanochen and the other Tadornini are characterized by a downy plumage that is …