Bibliografie tematiche / Australian merino sheep Productivity Experiments

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Letteratura scientifica selezionata sul tema "Australian merino sheep Productivity Experiments"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 31 gennaio 2023

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Articoli di riviste sul tema "Australian merino sheep Productivity Experiments"

Eady, SJ, PK O'Rourke, and PT Connelly. "Comparison of wool production and reproductive rate of South Australian strain Merinos and locally bred Peppin Merinos in the semi-arid tropics of Queensland." Australian Journal of Experimental Agriculture 31, no. 6 (1991): 737. http://dx.doi.org/10.1071/ea9910737.

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Three experiments were conducted to provide information on the wool production and reproductive rates of different strains of Merino sheep, and on the role of heat tolerance in determining the productivity of sheep in north-western Queensland. The locally bred Peppin Merinos had a significantly (P<0.05) lower rectal temperature (RT) and respiratory rate (RR) under heat load than the South Australian (SA) strain Merinos. Place of birth of SA Merinos had no effect on their RT and RR. At 16 months of age the Peppin sheep produced significantly (P<0.05) less clean wool (1.55 v. 1.82 kg) and

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Behrendt, Karl. "Price risk exposure of Australian Merinos – is it in the bloodline?" Animal Production Science 54, no. 9 (2014): 1317. http://dx.doi.org/10.1071/an14305.

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Sheep producers and their advisors utilise Australian Merino bloodline trial data to guide future sheep breeding objectives and ram selection. To adequately assess the economic outcomes from different bloodlines in the decision making process, there is a need to consider the impact of wool and sheep meat price risk. Using a steady-state wether flock model that accounts for the lifetime productivity of 268 reported Merino bloodlines and stochastic dependency in weekly wool and sheep meat prices from 28 June 2005 to 10 November 2011, gross incomes per dry sheep equivalent (GI/DSE) were calculate

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LUSHNIKOV, V. P. "MEAT PRODUCTIVITY OF RAMS OBTAINED BY CROSSING VOLGOGRAD SHEEPS WITH RAMS OF DIFFERENT FOREIGN BREEDS." Sheep, goats, woolen business, no. 2 (2021): 23–25. http://dx.doi.org/10.26897/2074-0840-2021-2-23-25.

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The article presents the indicators of slaughter, morphological and chemical composition of lamb meat obtained from industrial crossing of Volgograd breed queens with sheep breeds: Poll Dorset, Australian meat merino, North Caucasian meat-wool, Suff olk, Ile-de-France and Merinoland.

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Lakota, E. A. "Productivity of Stavropol sheep with Australian meat merino rocks in the Volga region." Agrarian science 322, no. 2 (February 2019): 42–43. http://dx.doi.org/10.32634/0869-8155-2019-322-2-42-43.

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Cottle, D. J., M. T. Harrison, and A. Ghahramani. "Sheep greenhouse gas emission intensities under different management practices, climate zones and enterprise types." Animal Production Science 56, no. 3 (2016): 507. http://dx.doi.org/10.1071/an15327.

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Greenhouse gas emissions (GHG) from broadacre sheep farms constitute ~16% of Australia’s total livestock emissions. To study the diversity of Australian sheep farming enterprises a combination of modelling packages was used to calculate GHG emissions from three sheep enterprises (Merino ewe production for wool and meat, Merino-cross ewes with an emphasis on lamb production, and Merino wethers for fine wool production) at 28 sites across eight climate zones in southern Australia. GHG emissions per ha, per dry sheep equivalents and emissions intensity (EI) per tonne of clean wool or liveweight s

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Lakota, E. A., and M. V. Zabelina. "An effective type of merino in the Volga region by the method of intrabreed selection." Agrarian science, no. 7-8 (September 24, 2021): 24–27. http://dx.doi.org/10.32634/0869-8155-2021-351-7-8-24-27.

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The article presents experimental data on the use of intrabreed selection in order to create the most effective productive type of sheep of the Stavropol fine-wool breed. In the zone of the dry steppe of the Volga region the sheep of the Stavropol breed were improved by the meat merino of the Australian selection. Scientific and experimental research was carried out in JSC “New Life” ofNovouzensky district of the Saratov region. The crossbreeds obtained during the step-by-step crossing of Stavropol sheep with tup-producers of Australian meat merino with 1/8-blood content according to AMM by ey

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Ponnampalam, E. N., D. L. Hopkins, F. R. Dunshea, D. W. Pethick, K. L. Butler, and R. D. Warner. "Genotype and age effects on sheep meat production. 4. Carcass composition predicted by dual energy X-ray absorptiometry." Australian Journal of Experimental Agriculture 47, no. 10 (2007): 1172. http://dx.doi.org/10.1071/ea07008.

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This study compares the carcass composition of different genotypes of Australian sheep slaughtered at four ages (110, 236, 412 and 662 days of age, or 4, 8, 14 and 22 months of age). The genotypes used were Poll Dorsetgrowth × Border Leicester Merino (PDg × BLM), Poll Dorsetgrowth × Merino (PDg × M), Poll Dorsetmuscling × Merino (PDm × M), Merino × Merino (M × M) and Border Leicester × Merino (BL × M). Approximately 150 mixed sex animals were slaughtered at each age and the right sides (half carcass) were scanned by dual energy X-ray absorptiometry (DXA) for chemical lean, fat and bone mineral

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Aboneev, Vasily, Dmitry Aboneev, Ekaterina Aboneeva, Safarbi Kazanchev, and Dastanbek Baimukanov. "Results of using different breed studs in commercial fine wool sheep breeding." E3S Web of Conferences 262 (2021): 02016. http://dx.doi.org/10.1051/e3sconf/202126202016.

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This work presents the material of research and production experiments on the crossing of stud rams of the North Caucasian meat and wool breed and Australian meat merino with fine wool ewes of a commercial herd. It is identified that the use of North Caucasian rams on fine wool ewes serves to increase the fertilizing ability and milk production of the breeding stock, to increase viability and resistance of young animals, as confirmed by the best morphometrical differences of crossbred offspring placentas. Crossbred offspring from semi-fine wool rams had a large live weight at birth at 21 days

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Li, G. D., K. R. Helyar, M. K. Conyers, L. J. C. Castleman, R. P. Fisher, G. J. Poile, C. J. Lisle, B. R. Cullis, and P. D. Cregan. "Pasture and sheep responses to lime application in a grazing experiment in a high-rainfall area, south-eastern Australia. II. Liveweight gain and wool production." Australian Journal of Agricultural Research 57, no. 10 (2006): 1057. http://dx.doi.org/10.1071/ar05299.

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‘Managing Acid Soils Through Efficient Rotations (MASTER)’ is a long-term pasture–crop rotation experiment commenced in 1992. One of the objectives was to demonstrate the extent of crop, pasture, and animal responses to lime application on a typical acidic soil in the 500–800 mm rainfall zone of south-eastern Australia. Two types of pastures (perennial v. annual pastures) with or without lime application were established in 1992. Fifteen- to eighteen-month-old Merino hoggets were used as test animals and were changed annually. This paper reports the results of sheep responses to liming from th

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Ferguson, M. B., J. M. Young, G. A. Kearney, G. E. Gardner, I. R. D. Robertson, and A. N. Thompson. "The value of genetic fatness in Merino ewes differs with production system and environment." Animal Production Science 50, no. 12 (2010): 1011. http://dx.doi.org/10.1071/an10130.

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Abstract (sommario):

Selection against fatness in the Australian sheep industry has been a priority, but defining the true value of fat requires an understanding of the effects it has on both the value of lamb carcasses and on sheep productivity. A Merino flock with 10 years of reproduction data was used to analyse the correlation between breeding values for fatness at yearling age (YFAT) and the number of lambs born per ewe mated (NLB). In 2 production years, NLB was related (P < 0.01) to YFAT resulting in an extra 14 or 24.5 lambs born per 100 ewes mated per mm of YFAT. Based on these relationships, bio-econo

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Più fonti

Tesi sul tema "Australian merino sheep Productivity Experiments"

Bray, Megan. "Regulation of wool and body growth : nutritional and molecular approaches." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phb8267.pdf.

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Abstract (sommario):

"May 2002" Includes bibliographical references (leaves 148-164) Describes a series of novel experiments designed to enhance our understanding of nutrient utilisation for growth of wool and the whole body.

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Bray, Megan. "Regulation of wool and body growth : nutritional and molecular approaches / Megan Bray." Thesis, 2002. http://hdl.handle.net/2440/21832.

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Abstract (sommario):

"May 2002" Includes bibliographical references (leaves 148-164) xi, 164 leaves : ill. ; 30 cm. Describes a series of novel experiments designed to enhance our understanding of nutrient utilisation for growth of wool and the whole body. Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, 2002

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Hill, Jane Adair. "Phenotypic and genetic parameters for the S.A. Strongwool merino strain with an emphasis on skin characters as early indicators of wool productivity." 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phh6463.pdf.

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Abstract (sommario):

Bibliography: leaves 325-341. Skin and fleece measurements were recorded at different ages for both male and female sheep from the Turretfield Merino Resource Flock and used to estimate the heritability of each trait and the phenotypic and genetic correlations among and between the skin and fleece traits. Generally, the heritability of each trait was high, which indicates that both the fleece and skin traits should respond well to selection.

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Hill, Jane Adair. "Phenotypic and genetic parameters for the S.A. strongwool merino strain with an emphasis on skin characters as early indicators of wool productivity / by Jane Adair Hill." Thesis, 2001. http://hdl.handle.net/2440/21721.

Testo completo

Abstract (sommario):

Includes bibliographical references (leaves 325-341). xxvii, 341 leaves : ill. ; 30 cm. Skin and fleece measurements were recorded at different ages for both male and female sheep from the Turretfield Merino Resource Flock and used to estimate the heritability of each trait and the phenotypic and genetic correlations among and between the skin and fleece traits. Generally, the heritability of each trait was high, which indicates that both the fleece and skin traits should respond well to selection. Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, 2001

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