515 research outputs found
Effect of periconceptional nutrition on the growth, behaviour and survival of the neonatal lamb
No full textAbstract not availableD.O. Kleemann, J.M. Kelly, S.R. Rudiger, I.C. McMillen, J.L. Morrison, S. Zhang, S.M. MacLaughlin, D.H. Smith, R.J. Grimson, K.S. Jaensch, F.D. Brien, K.J. Plush, S. Hiendleder, S.K. Walke
Genetic trends achieved under industry control for different selection strategies in Australian Merinos
No full textThe Australian Selection Demonstration Flock (SDF) project was established under industry directive to publicise alternative selection strategies for Australian Merino sheep. Three selection lines under industry control have used different degrees of objective and subjective techniques to reduce mean fibre diameter whilst maintaining or improving clean fleece weight and body weight. Genetic trends reveal relative advantages and limitations for each selection line, although communication amongst the wool industry factions has been the primary benefit of the SDF project. Producer involvement has ensured industry relevance and improved understanding of alternative breeding practices within the wool industry.K.E. Kemper, Hebart, M.L., Brien, F.D., Jaensch, K.S., Smith, D.H. and Grimson, R.J
Letter to F.D. Moon from A. Mitchell Salone regarding information about and photos of the Colored School in Wewoka
No full textLetter to F.D. Moon regarding a book being written on African American schools. The author asks for photos of the school and shows appreciation for how he runs the school
Meat quality in merino ram hoggets
No full textGenetic, environmental and management effects on meat pH and colour and their relationship with other production traits were estimated from pooled data based on carcase measurements from 5870 Merino hogget rams from New South Wales, South Australia and Western Australia. Principal component analyses failed to generate a trait which would be superior to the direct use of meat pH and colour as criteria in selection against dark cutting meat. No genetic or environmental links were found between dark cutting and production traits that could provide a causative effect or potential for indirect selection. In addition to parameter estimates, the contribution of various sources of variation for meat pH and colour have been quantified and the implications of the findings are discussed.S. F. Walkom, F.D. Brien, M.L. Hebart, J.C. Greeff, D.L. Hopkins and W.S. Pitchfor
Partitioning genetic variance in composite sheep
No full textAustralian sheep producers have been moving towards an increased use of composite crossbred ewes to achieve higher performance and greater genetic gain, taking advantage of the high value lamb market. Sheep research has traditionally been carried out on purebred flocks or their first and second crosses with replication and uniformity of breed types within the data. Within composite lines, the breed combinations are often complex, with multiple breeds in variable proportions with few sheep per breed combination. To enable estimation of between and within breed genetic effects, the analysis performed in our study included both additive and dominance genetic effects at the breed level. Breed additive effects contributed to 1.3% of the variation in weight. The variance associated with breed dominance effects were significant for both weight and height (10 and 5%). Results from this analysis on the small sub set are promising, and suggest the model will account for breed effects when a larger composite sheep data set is analysed.S.F. Walkom, A.P. Verbyla, F.D. Brien, M.L. Hebart and W.S. Pitchfordhttp://www.aaabg.org/aaabg19/?conference19=19th+AAABG+Conference+201
Foresea: An installation about sea level rise at Oerol 2016
No full textForesea is the result of course 'AR0148 - landscape architecture ON site' 2016, initiated by the section Landscape Architecture at the faculty of Architecture. Central aim of this course is to express the given site in a project at the interface between landscape architecture and landscape art, which will be performed during the Oerol festival in June on the island of Terschelling. Experiences of the place and the results of research and analysis form the base of the project.Architecture and The Built EnvironmentUrbanismAR0148 - landscape architecture ON siteLandscape Architectur
Re-creating the gullies, re-creating the city: A review towards a new urban green system for Quito
No full textArchitecture and The Built EnvironmentUrbanismLandscape Architectur
Evaluating Amino Acid Profiles and Blood Gas Concentrations Between Single and Twin Merino Newborn Lambs
No full textAs sheep production standards progress, and animals are bred for high production in terms of the number and weight of lambs weaned per ewe, research has identified a difference in the physiology of single lambs compared to multiple born lambs. The current study aimed to report the baseline amino acid (AA) profiles and blood gas concentrations in newborn, Merino single and twin lambs. From 120 days of gestation, 50 single-bearing and 50 twin-bearing, naturally mated Merino ewes were monitored for signs of approaching parturition. At birth, blood samples of the progeny were collected, and birth weight, rectal temperature, and meconium score were recorded. Blood plasma samples were analysed for AA profiles and blood gas concentrations were determined using an i-Stat Alinity. Single-born lambs had a higher birth weight (5.05 kg) compared to twins (4.24 kg; p < 0.05). Birth rank also affected rectal temperature and AAs aspartic acid, isoleucine, leucine, and phenylalanine, all being lower in twins compared to singles (p < 0.05). These baseline data provide insight into the physiological differences between single and twin lambs at birth from dams where there has been no treatment or intervention imposed.Leesa-Joy Dunstan, Michelle L. Hebart, Forbes D. Brien, Sue A. McCoard, Mariana Caetan
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