Stimulation of the mammalian reproductive system by olfactory pathways. This project answers fundamental questions about mammalian reproductive biology but, because we work with the sheep model, our findings can be applied to two of Australia's biggest export industries, wool and sheepmeat. Understanding the reproductive responses of our production animals to exteroceptive factors such as socio-sexual signals, photoperiod and nutrition is an important first step towards refining the management ....Stimulation of the mammalian reproductive system by olfactory pathways. This project answers fundamental questions about mammalian reproductive biology but, because we work with the sheep model, our findings can be applied to two of Australia's biggest export industries, wool and sheepmeat. Understanding the reproductive responses of our production animals to exteroceptive factors such as socio-sexual signals, photoperiod and nutrition is an important first step towards refining the management of breeding programs. It has been argued that this approach will also minimise, and perhaps even remove the need for, exogenous hormones and drugs for controlling the reproductive process.Read moreRead less
Brain Regulation of Reproduction: Challenging the ‘KNDy’ Hypothesis. The brain switches reproduction on and off by changing the frequency of pulses of gonadotrophin releasing hormone. The processes that produce the pulses have been a puzzle for decades but, recently, brain cells that produce three peptides (kisspeptin, neurokinin B, dynorphin), known as ‘KNDy cells’, have been heralded as the ‘missing link’, or even the ‘pulse generator’. Using sheep, this project will challenge the KNDy hypothe ....Brain Regulation of Reproduction: Challenging the ‘KNDy’ Hypothesis. The brain switches reproduction on and off by changing the frequency of pulses of gonadotrophin releasing hormone. The processes that produce the pulses have been a puzzle for decades but, recently, brain cells that produce three peptides (kisspeptin, neurokinin B, dynorphin), known as ‘KNDy cells’, have been heralded as the ‘missing link’, or even the ‘pulse generator’. Using sheep, this project will challenge the KNDy hypothesis with pheromones and with acute increases in nutrition, two factors that rapidly increase the frequency of gonadotrophin releasing hormone pulses. The outcomes of this research are directly relevant to the optimisation of reproductive management in farm animals, wildlife and humans.Read moreRead less
An integrated genomics approach to improve our understanding of the biology of genital campylobacteriosis in beef cattle. Beef is Australia's most valuable agricultural export estimated at $9.6B annually and this industry accounts for one-third of full time employment in regional communities. Currently, unknown causes of reproductive losses in cattle in Northern Australian cost producers approximately $15M per annum. Bovine genital campylobacteriosis is one of the major risk factors associated w ....An integrated genomics approach to improve our understanding of the biology of genital campylobacteriosis in beef cattle. Beef is Australia's most valuable agricultural export estimated at $9.6B annually and this industry accounts for one-third of full time employment in regional communities. Currently, unknown causes of reproductive losses in cattle in Northern Australian cost producers approximately $15M per annum. Bovine genital campylobacteriosis is one of the major risk factors associated with this high cost due to the inability to accurately diagnose the disease. This research will integrate genomics and bioinformatics with infection and vaccination models to improve our understanding of the biology of the disease to develop appropriate control strategies securing Australia's beef industry.Read moreRead less
The molecular basis of sperm competition. This project aims to unravel the molecular basis of reproductive conflicts. Males compete for paternity and this continues after mating if females copulate and receive semen from multiple males. In ants and bees, molecules in males’ ejaculates recognise and kill rival males’ sperm. Reproductive proteins in leaf cutter ants’ seminal fluid may be the molecular agents of sperm competition. This project will investigate reproductive proteins and their functi ....The molecular basis of sperm competition. This project aims to unravel the molecular basis of reproductive conflicts. Males compete for paternity and this continues after mating if females copulate and receive semen from multiple males. In ants and bees, molecules in males’ ejaculates recognise and kill rival males’ sperm. Reproductive proteins in leaf cutter ants’ seminal fluid may be the molecular agents of sperm competition. This project will investigate reproductive proteins and their functioning and effects on reproductive success. This project will show how reproductive conflicts over paternity operate on the protein level and may lead to novel avenues for future pest control.Read moreRead less
Evolutionary proteomics of social insects. This project aims to understand the molecular mechanisms that affect fertility in honeybees and leaf-cutting ants by identifying the function of proteins in male and female secretions related to insemination and sperm storage. The understanding of these general principles will have important applications for honeybee breeding.
Industrial Transformation Training Centres - Grant ID: IC230100016
Funder
Australian Research Council
Funding Amount
$5,000,000.00
Summary
ARC Training Centre in Predictive Breeding for Agricultural Futures. This Centre aims to develop the advanced capacity needed to secure Australia’s food and fibre production and export value into the future. Leveraging immense industry support, the Centre expects to develop and integrate cutting-edge plant and animal breeding technologies and deliver world-class training that addresses critical demand for highly skilled industry leaders. Expected outcomes include a future-ready predictive breedi ....ARC Training Centre in Predictive Breeding for Agricultural Futures. This Centre aims to develop the advanced capacity needed to secure Australia’s food and fibre production and export value into the future. Leveraging immense industry support, the Centre expects to develop and integrate cutting-edge plant and animal breeding technologies and deliver world-class training that addresses critical demand for highly skilled industry leaders. Expected outcomes include a future-ready predictive breeding industry able to transform data into optimised decisions, and the human capacity to drive it. This should provide significant benefits to enhance the sustainability and profitability of all major Australian agriculture sectors, including livestock, grains, horticulture, cotton, wine, dairy, forestry and fisheries.Read moreRead less
New Approaches to the Control of Post-Weaning Diarrhoea in Piglets. In Australia, post?weaning diarrhoea (PWD) in piglets is a major constraint to efficient and profitable production. Increasing levels of resistance to dietary antibiotics by gut pathogens such as Escherichia coli, the bacterium implicated in PWD, is a major reason for this problem. This research will identify nutritional means of controlling PWD and increasing production after weaning. This will be achieved by strategic nutritio ....New Approaches to the Control of Post-Weaning Diarrhoea in Piglets. In Australia, post?weaning diarrhoea (PWD) in piglets is a major constraint to efficient and profitable production. Increasing levels of resistance to dietary antibiotics by gut pathogens such as Escherichia coli, the bacterium implicated in PWD, is a major reason for this problem. This research will identify nutritional means of controlling PWD and increasing production after weaning. This will be achieved by strategic nutritional interventions in the pre-weaning and (or) post-weaning periods targeted at reducing bacterial pathogens in the gut. A reduction in PWD will increase the overall efficiency of pig production in Australia and reduce antibiotic use.Read moreRead less
Novel semio-chemical approach to control the Australian Sheep Blowfly . The Australian Federal Government through the 'Smart Farming' initiative highlights the need for improved multidisciplinary measures in order to remain at the global forefront of the invention and adoption of technology. This multidisciplinary project (entomology, biotechnology, analytical chemistry and genomics) will rapidly inform the management of fly strike on an important Australian resource merino sheep. This will bui ....Novel semio-chemical approach to control the Australian Sheep Blowfly . The Australian Federal Government through the 'Smart Farming' initiative highlights the need for improved multidisciplinary measures in order to remain at the global forefront of the invention and adoption of technology. This multidisciplinary project (entomology, biotechnology, analytical chemistry and genomics) will rapidly inform the management of fly strike on an important Australian resource merino sheep. This will build the key biochemical data in order to develop a novel fly lure technology (at scale) to be used on farm delivering national benefit through improved animal welfare and safety considerations for producers, and will establish the best approach to disseminate this scientific information to stakeholders such as farmers.Read moreRead less
Mechanisms of infertility induced in mice by vaccination with murine zona pellucida 3. This research investigates the means by which a novel immunocontraceptive vaccine induces an infertile state in female mice. The vaccine stimulates an autoimmune condition which resembles certain naturally occurring ovarian diseases. By investigating how ovarian cellular interactions are maintained in normal ovaries and disrupted by the immunocontraceptive vaccine, we will learn a great deal about ovarian fu ....Mechanisms of infertility induced in mice by vaccination with murine zona pellucida 3. This research investigates the means by which a novel immunocontraceptive vaccine induces an infertile state in female mice. The vaccine stimulates an autoimmune condition which resembles certain naturally occurring ovarian diseases. By investigating how ovarian cellular interactions are maintained in normal ovaries and disrupted by the immunocontraceptive vaccine, we will learn a great deal about ovarian function in health and disease. Ultimately this information will be applied to improving the reproductive health of women.
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Flea Control by Immunological Intervention. Fleas are bloodsucking parasites that are the major cause of skin disease in pets. Currently, all available flea products rely upon chemical control and many have active components that have real or perceived health problems. Given that insect growth regulators do not kill adult fleas and pet owners are interested in using alternatives to insecticides, there is a clear need for a complementary form of flea control. We describe the novel use of Prote ....Flea Control by Immunological Intervention. Fleas are bloodsucking parasites that are the major cause of skin disease in pets. Currently, all available flea products rely upon chemical control and many have active components that have real or perceived health problems. Given that insect growth regulators do not kill adult fleas and pet owners are interested in using alternatives to insecticides, there is a clear need for a complementary form of flea control. We describe the novel use of Proteomic technology to identify flea proteins that are "switched on" during feeding and are specifically located in the gut. This project will enable the development of a vaccine that is systemic, kills adult fleas, is long-lasting and residue-free.Read moreRead less