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Animal Sciences Commons

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Articles 1 - 11 of 11

Full-Text Articles in Animal Sciences

Oestrogenic Subterranean Clover Guide. Identification And Remediation, Kevin J. Foster, Megan H. Ryan, Daniel R. Kidd May 2022

Oestrogenic Subterranean Clover Guide. Identification And Remediation, Kevin J. Foster, Megan H. Ryan, Daniel R. Kidd

Bulletins 4000 -

Subterranean clover (subclover, Trifolium subterraneum L.) is an annual pasture legume that provides high quality feed for livestock. It is estimated to be sown over 30 million hectares across southern Australia, with cultivars developed for the low, medium and high rainfall zones. Unfortunately, some older cultivars contain high levels of phytoestrogen which can affect the reproductive system of sheep and cause other health issues. This became a significant issue for sheep producers from the 1940s as new land was cleared and sheep grazed subclover-dominant pastures. There was a collection of livestock issues observed and these were grouped together under the …


Changing Climate, Changing Business Practices : Lessons From Innovative Growers, David Gray, Nicole Baxter, Meredith Fairbanks, Geraldine Pasqual Sep 2011

Changing Climate, Changing Business Practices : Lessons From Innovative Growers, David Gray, Nicole Baxter, Meredith Fairbanks, Geraldine Pasqual

Bulletins 4000 -

Climate change and increasing seasonal variability are challenging the production efforts of growers in lower rainfall environments of the Western Australian grain belt. Significantly less rainfall than the long-term average has fallen across southwest Western Australia during the past 30 years.

Seasonal rainfall has also become more variable with later starts to the growing season and a general shift to more summer and less winter rainfall. Day and night-time temperatures, particularly in winter and autumn, have gradually increased, while in some areas, the risk of frost in spring has increased.


Management Of Merino Weaners For Optimum Production, Patricia Harper, Keith Croker, Danny Roberts Feb 2009

Management Of Merino Weaners For Optimum Production, Patricia Harper, Keith Croker, Danny Roberts

Bulletins 4000 -

Sheep mortality during the first year of life is a large problem on many farms and poses a significant animal welfare issue for Australian agriculture. Post weaning mortality is estimated to cost the Australian sheep industry more than $89 million annually through reduced income, poor productivity and increased management expenses (Sackett et al. 2006).

A high mortality rate among weaners reduces the number of surplus animals available for sale and the number of potential breeding replacements. This, in turn, affects the selection intensity for desirable traits and the flock’s rate of genetic improvement.

Ill thrift and poor growth of weaner …


Getting Into Sheep An Introductory Guide To Sheep Management, Keith Croker, Roy Butler Feb 2009

Getting Into Sheep An Introductory Guide To Sheep Management, Keith Croker, Roy Butler

Bulletins 4000 -

Sheep husbandry can be an interesting and rewarding activity but before starting to work with or buy sheep ask yourself if you are prepared to spend the time and effort to care for them.

Sheep cannot be placed in a paddock and forgotten. The sheep, along with their water, feed and fences must be inspected regularly. If you do not live on the farm, or visit it only infrequently, make sure there is a responsible person available who is willing to inspect and manage the sheep on your behalf.


Total Grazing Management Field Guide Self-Mustering Systems For Cattle, Sheep And Goats, C Underwood Jun 2002

Total Grazing Management Field Guide Self-Mustering Systems For Cattle, Sheep And Goats, C Underwood

Bulletins 4000 -

Total grazing management (TGM) systems were designed to assist producers in the Western Australian rangelands to improve station productivity.TGM systems can increase the profits of pastoral properties by improving management control over grazing animals and by decreasing operating costs.

Over 1000 TGM yards have been put on the ground in the southern rangelands.The majority of these are sheep and goat systems, though an increasing number of cattle systems, and cattle, sheep and goat systems are being built.

This booklet is a practical guide to the types of TGM selfmustering systems available. It is designed to be used as a planning …


Controlling Sheep Meat Disorders, Michael Paton Dr Feb 2002

Controlling Sheep Meat Disorders, Michael Paton Dr

Bulletins 4000 -

No abstract provided.


Maximising The Lamb Drop, Don Moir Jan 2002

Maximising The Lamb Drop, Don Moir

Bulletins 4000 -

Although reproductive rates vary greatly between individual properties, the average marking percentage in Western Australia still hovers around 75%. In the absence of disease it is possible to improve on this figure by undertaking some straight forward management practices at different stages of the reproductive cycle.


A Guide To Grazing Systems And Animal Production, Kylie Woodgate, Western Australian Department Of Agriculture, Australian Wool Innovation Ltd. Jan 2002

A Guide To Grazing Systems And Animal Production, Kylie Woodgate, Western Australian Department Of Agriculture, Australian Wool Innovation Ltd.

Bulletins 4000 -

This manual has been produced as a joint venture between the Wool and Meat Programs of Agriculture Western Australia. It is intended to provide current information on most animal production issues today. It has been modified from the current Woolpro and Prograze manuals distributed to farmers and is designed for use mainly by Agricultural Colleges and Secondary Schools teaching Agriculture. It should be used in conjunction with these manuals.


The Good Food Guide For Sheep : Feeding Sheep For Meat Production In The Areas Of Western Australia, Keith Croker, Peter Watt, Department Of Agriculture And Food, Western Australia Sep 2001

The Good Food Guide For Sheep : Feeding Sheep For Meat Production In The Areas Of Western Australia, Keith Croker, Peter Watt, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

The Good Food Guide for Sheep has been produced to provide Western Australian farmers with a concise compilation of current information on feeding sheep for meat production. Although there are already numerous publications about sheep nutrition,many of them relate to wool production, reproduction or drought feeding, or they concentrate on particular feeds or feeding systems.

This book contains information on a wide range of feeds and feeding methods. Just as there is no single ‘best’ sheep breed for meat production, there is no ultimate feed regime for sheep for growth.


Artificial Insemination Of Ewes With Fresh Semen, Jonathon Hunton, Keith Kroker Sep 1989

Artificial Insemination Of Ewes With Fresh Semen, Jonathon Hunton, Keith Kroker

Bulletins 4000 -

This Bulletin gives a basic outline of the technique for artificial insemination (Al) of sheep. The topic is large and incorporates several areas of reproductive physiology which can only be given cursory treatment in this publication. Much of the information discussed is also applicable to goat breeders wishing to use AT, although there are some fundamental differences.


B619: An Economic Study Of Sheep Production In Maine, Dean F. Tuthill Jan 1964

B619: An Economic Study Of Sheep Production In Maine, Dean F. Tuthill

Bulletins

This study of sheep production in Maine was done in the summer of 1962 on the prior year's beep operation. Records of 60 producers were included in the study, approximately a 30 percent sample of producers with 20 or more mature ewes per flock. The bulletin describes the characteristics of sheep producers and their operations, the management and marketing practices, investments, and expenses.