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
TSuNAMi: Time Series Network Animal Modelling. Our proposal is motivated by and based upon the successful representation of time series as a network (or graph). We construct an abstract representation of a system from measurements of its changing behaviour over time. Properties of that structure (the network) then allow us to infer diagnostic information of the system. Specifically, we propose to apply this to livestock welfare during transport. By measuring the biological and environment condi ....TSuNAMi: Time Series Network Animal Modelling. Our proposal is motivated by and based upon the successful representation of time series as a network (or graph). We construct an abstract representation of a system from measurements of its changing behaviour over time. Properties of that structure (the network) then allow us to infer diagnostic information of the system. Specifically, we propose to apply this to livestock welfare during transport. By measuring the biological and environment condition of the animal we construct a network representation of that system. Geometric features of that network can then be used to infer health or duress of the subject. This proposal will develop the generic mathematical machinery to connect geometric features of the network with system behaviour. Read moreRead less
Engineering safer pastures for livestock. This project aims to develop subterranean clover with elevated condensed tannins in leaves. This important pasture legume is currently a bloat risk for cattle and sheep due to low condensed tannins and high soluble proteins. Bloat is a health issue that costs the Australian and New Zealand livestock industries over $200 million per annum. Condensed tannins can reduce bloat, decrease methane production and improve efficiency of production. A novel approac ....Engineering safer pastures for livestock. This project aims to develop subterranean clover with elevated condensed tannins in leaves. This important pasture legume is currently a bloat risk for cattle and sheep due to low condensed tannins and high soluble proteins. Bloat is a health issue that costs the Australian and New Zealand livestock industries over $200 million per annum. Condensed tannins can reduce bloat, decrease methane production and improve efficiency of production. A novel approach using CRISPR and other innovative molecular techniques will generate breeding lines high in condensed tannins and deliver knowledge applicable to other pasture legumes. Expected outcomes for livestock producers include improved animal welfare, reduced carbon emissions and enhanced profits.Read moreRead less