Manipulation of the growth potential and carcass composition of domestic animal species. Finding alternatives to repeated growth hormone(GH) injection to boost production efficiency and minimise carcass fatness remains an important target for animal research. This application exploits the two novel approaches to achieve this goal through: 1. the administration of the GH releasing peptides to the neonate to imprint an enhanced GH secretory pattern and feed conversion efficiency during growth ....Manipulation of the growth potential and carcass composition of domestic animal species. Finding alternatives to repeated growth hormone(GH) injection to boost production efficiency and minimise carcass fatness remains an important target for animal research. This application exploits the two novel approaches to achieve this goal through: 1. the administration of the GH releasing peptides to the neonate to imprint an enhanced GH secretory pattern and feed conversion efficiency during growth to maturity and 2. the development of an orally active form of these peptides by conjugation with VitB12 to facilitate intestinal absorption through the VitB12 transport mechanism for delivery to the hypothalamic/pituitary axis of animals nearing maturity.Read moreRead less
Enhancing aquaculture production of the tropical abalone using complementary genetic and environmental approaches. While temperate abalone are one of our most valuable seafoods, there is a growing demand worldwide for the ?cocktail?-sized tropical abalone Haliotis asinina. Australia is well positioned to capture the market for this rapidly growing species. We propose to enhance the already favourable growth rates of Haliotis asinina in aquaculture by delineating critical environmental and geneti ....Enhancing aquaculture production of the tropical abalone using complementary genetic and environmental approaches. While temperate abalone are one of our most valuable seafoods, there is a growing demand worldwide for the ?cocktail?-sized tropical abalone Haliotis asinina. Australia is well positioned to capture the market for this rapidly growing species. We propose to enhance the already favourable growth rates of Haliotis asinina in aquaculture by delineating critical environmental and genetic factors that effect production. This proposal uniquely melds commercial production practices at MG Kailis Export Pty Ltd with expertise in aquaculture and marine biotechnology present at The University of Queensland and CSIRO Marine Research. This knowledge will enhance the development of this new aquaculture industry in tropical Australia.Read moreRead less
Alternate diets for a sustainable aquaculture industry: neuroethology of feeding in barramundi. Our unique approach to identify the sensory requirements of farmed barramundi and develop new alternative feeds will 1. Improve barramundi production by increasing growth rates, 2. Enhance acceptance and ingestion of food pellets, thereby reducing leaching of nutrients vital to the fish and detrimental to the environment, 3. Help produce formulated diets that will offer the advantages of nutritional c ....Alternate diets for a sustainable aquaculture industry: neuroethology of feeding in barramundi. Our unique approach to identify the sensory requirements of farmed barramundi and develop new alternative feeds will 1. Improve barramundi production by increasing growth rates, 2. Enhance acceptance and ingestion of food pellets, thereby reducing leaching of nutrients vital to the fish and detrimental to the environment, 3. Help produce formulated diets that will offer the advantages of nutritional consistency, storage convenience, reduced feed waste and pollution and 4. Lower costs allowing for the successful and profitable production of barramundi and potentially other finfish. Read moreRead less
The role of neurohormones in the regulation of appetite and successful sea water transfer in farmed Atlantic salmon. Cultured Atlantic salmon spend the first part of their life in freshwater and then following a physiological adaption phase called smoltification, the fish (now termed smolts) are transferred to sea cages for growout. A proportion of smolts fail to thrive after transfer, show slow or no growth and usually die some months later. This project will investigate the role that the neuro ....The role of neurohormones in the regulation of appetite and successful sea water transfer in farmed Atlantic salmon. Cultured Atlantic salmon spend the first part of their life in freshwater and then following a physiological adaption phase called smoltification, the fish (now termed smolts) are transferred to sea cages for growout. A proportion of smolts fail to thrive after transfer, show slow or no growth and usually die some months later. This project will investigate the role that the neurohomones that control both appetite and physiological stress in fish have in stimulating the resumption of feeding after sea water transfer.The basic knowledge generated will be used directly in development of strategies for minimising smolt failure in Atlantic salmon aquaculture.Read moreRead less
The cellular basis of temperature impairment of reproductive function in Atlantic salmon. Elevated summer and autumn temperatures, either as a result of normal climate variation or global warming, inhibit reproduction in salmonid fishes by disrupting endocrine (hormonal processes). The mechanisms involved are unclear but are known to involve inhibition of ovarian estrogen and the assembly of egg-yolk proteins. This project will investigate the cellular basis of the inhibitory effect of high temp ....The cellular basis of temperature impairment of reproductive function in Atlantic salmon. Elevated summer and autumn temperatures, either as a result of normal climate variation or global warming, inhibit reproduction in salmonid fishes by disrupting endocrine (hormonal processes). The mechanisms involved are unclear but are known to involve inhibition of ovarian estrogen and the assembly of egg-yolk proteins. This project will investigate the cellular basis of the inhibitory effect of high temperature on reproduction, at the ovarian and hepatic levels. The understanding developed will be an essential component of amelioration strategies for managing the continued successful rearing of salmon and trout under warming environmental conditions.Read moreRead less
Advanced animal breeding in aquaculture: using genome-wide molecular breeding values for rapid animal improvement in the silver-lipped pearl oyster. The primary impediment to achieving rapid genetic progress in aquaculture is an inability to accurately and rapidly identify high-performance animals for selection as parents in animal breeding programs. This project aims to develop an innovative genomic selection breeding system for the silver-lipped pearl oyster to overcome current limitations ass ....Advanced animal breeding in aquaculture: using genome-wide molecular breeding values for rapid animal improvement in the silver-lipped pearl oyster. The primary impediment to achieving rapid genetic progress in aquaculture is an inability to accurately and rapidly identify high-performance animals for selection as parents in animal breeding programs. This project aims to develop an innovative genomic selection breeding system for the silver-lipped pearl oyster to overcome current limitations associated with traditional animal improvement methods. The use of genomic selection will not only transform the Australian pearl oyster industry, but it will also showcase the potential of genomic selection in aquaculture globally. Furthermore, knowledge gained from this project can also be applied to a variety of other Australian aquaculture species to accelerate the uptake of this technology.Read moreRead less
An investigation of the underlying mechanisms that control gender and fertility in the Moreton Bay Bug, Thenus orientalis. To date there is no available information on the underlying biochemical and genetic mechanisms that control gender and fertility in Thenus spp. Understanding how gender and fertility are controlled in this lobster species will allow development of technologies to exploit desired commercial traits such as reproductive sterility (for genetic protection). Such technologies wil ....An investigation of the underlying mechanisms that control gender and fertility in the Moreton Bay Bug, Thenus orientalis. To date there is no available information on the underlying biochemical and genetic mechanisms that control gender and fertility in Thenus spp. Understanding how gender and fertility are controlled in this lobster species will allow development of technologies to exploit desired commercial traits such as reproductive sterility (for genetic protection). Such technologies will facilitate rapid uptake of commercial culture of this high-value species in Australia and establishment of international markets. Read moreRead less
Improving the growth rate and flesh quality of cultured Barramundi: Investigating the effects of temperature, diet, and population. Barramundi fillet is one of the premier seafoods available in Australia and the decline of wild fisheries has increased the demand for the cultured product. Accordingly, there has been a rapid growth of the barramundi farming industry, but competition from cheaper overseas imports has cut the sale price and profit margins of local growers. By developing methods to i ....Improving the growth rate and flesh quality of cultured Barramundi: Investigating the effects of temperature, diet, and population. Barramundi fillet is one of the premier seafoods available in Australia and the decline of wild fisheries has increased the demand for the cultured product. Accordingly, there has been a rapid growth of the barramundi farming industry, but competition from cheaper overseas imports has cut the sale price and profit margins of local growers. By developing methods to increase growth rates, this research has the potential to substantially increase profit margins by reducing production costs and increasing turnover. Improvement of flesh quality will also increase the attractiveness of barramundi fillet. Increasing the viability of barramundi culture in Australia will attract more growers and increase employment opportunities.Read moreRead less
C-type lectins and innate immunity in barramundi. The project aims to identify mannan binding lectins (MBL), key components of innate immunity, in barramundi and to develop quantitative assays for MBL. The project further aims to investigate the role of MBL in infectious processes of Streptococcus iniae, which causes disease in barramundi and humans. Quantitative assays will be used in conjunction with more traditional assays to evaluate the effect of supplemented feeds on the innate immune syst ....C-type lectins and innate immunity in barramundi. The project aims to identify mannan binding lectins (MBL), key components of innate immunity, in barramundi and to develop quantitative assays for MBL. The project further aims to investigate the role of MBL in infectious processes of Streptococcus iniae, which causes disease in barramundi and humans. Quantitative assays will be used in conjunction with more traditional assays to evaluate the effect of supplemented feeds on the innate immune system of barramundi and their disease resistance during times of stress. This project will increase our understanding of innate immune pathways in this fish species and aid development of improved feeding strategies.Read moreRead less
Flavour enhancing functional feeds for farmed Barramundi. This project aims to improve the flavour quality of Australian farmed barramundi through developing novel functional feeds. The project expects to expand our fundamental knowledge of flavour enhancement, whilst providing practical benefits with respect to final product quality. The project will enable industry to achieve higher product quality benchmarks, towards the ultimate goal of improving the marketability of barramundi both locally ....Flavour enhancing functional feeds for farmed Barramundi. This project aims to improve the flavour quality of Australian farmed barramundi through developing novel functional feeds. The project expects to expand our fundamental knowledge of flavour enhancement, whilst providing practical benefits with respect to final product quality. The project will enable industry to achieve higher product quality benchmarks, towards the ultimate goal of improving the marketability of barramundi both locally and overseas. This project will provide significant benefits to the Australian barramundi industry by increasing product values, thereby facilitating an economically sustainable growth of this important regional industry.Read moreRead less