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Journal articles on the topic 'Wool production'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2024

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1

Russel, A. J. F., H. M. Sangster, G. T. Gittus, and Hilary Redden. "Fine wool production from UK hill land resources." Proceedings of the British Society of Animal Production (1972) 1994 (March 1994): 216. http://dx.doi.org/10.1017/s0308229600027604.

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Wool is the most neglected agricultural commodity in the UK. In many sheep enterprises the returns from wool represent less than 2% of the gross income and in some cases the value of the wool produced is less than the cost of shearing. Wool production, however, represents a potential avenue for agricultural diversification and, being a non-food commodity and suited to production in the Less Favoured Areas, accords with the agricultural policies of the UK government and the EU.Significant increases in return from wool can come only from improvements in quantity and/or quality, two traits which

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2

McKay, J. C. "Fibre production in angora rabbits." Proceedings of the British Society of Animal Production (1972) 1990 (March 1990): 67. http://dx.doi.org/10.1017/s0308229600018481.

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Angora rabbits carry a mutation.which confers continuous wool growth. The use of the wool in textiles was first recorded in 1706 in the U.K. and western Europe dominated world production until the the early 20th century. China now produces 60 percent of the world's 4,000 tonne annual crop.Genetic and nutritional improvements have led to a five-fold increase in annual yields over the last 40 years. Current commercial strains produce up to 1.5 Kg of wool per year from rabbits weighing 4 Kg. To maintain such yields requires concentrate diets with protein contents of at least 16 percent and cystin

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3

Williams, A. J. "The Efficiency of Wool Production." Outlook on Agriculture 15, no. 3 (1986): 141–50. http://dx.doi.org/10.1177/003072708601500307.

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The efficiency of wool production – which in the context of this review means largely the production of fine wool in Australia, the largest grower – depends on local conditions and management systems. The main factors, other than genetic, are climatic and edaphic; the proportion of herbage utilized by the sheep; and the proportion of ingested herbage converted into wool.

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4

Vacula, Miroslav, Martin Klvač, Robert Mildner, and Šárka Keprdová. "Parameters of Cement Bonded Particle Boards Modified with Stone Wool Fibre." Advanced Materials Research 923 (April 2014): 195–201. http://dx.doi.org/10.4028/www.scientific.net/amr.923.195.

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The contribution deals with possibilities of using waste from the production of stone wool for modification of the existing composition of cement boards . Waste - the fibres from the production of stone wool - was used as an alternative to the standardly used wooden filler (chips, sawdust). The waste was tested in laboratory and then added to the mixture for the production of cement-bonded particleboards as a substitute for wood filler. The physical and mechanical properties of laboratory-made boards with a modified recipe were monitored.

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Papa, Lumturi, and Kristaq Kume. "SHEEP WOOL PRODUCTION IN ALBANIA." Macedonian Journal of Animal Science 2, no. 2 (2012): 143–48. http://dx.doi.org/10.54865/mjas1222143p.

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Denney, GD, HI Ridings, and KJ Thornberry. "An analysis of the variation in wool production between commercial properties from a survey of a wheat-sheep shire in New South Wales." Australian Journal of Experimental Agriculture 30, no. 3 (1990): 329. http://dx.doi.org/10.1071/ea9900329.

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A survey of Merino breeding properties in the Weddin Shire of New South Wales was used to relate the variation in wool production among properties to physical and management factors. Clean wool production averaged 3.15 kg per sheep and showed little variation between the eastern, central and western portions of the shire. However, clean wool production per hectare was greatest in the eastern portion where rainfall, pasture improvement and stocking rate were highest. Overall, ewes produced 88% as much wool as the wethers but variation was great, with 23% of the properties surveyed producing mor

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7

Enciu, Ana, Camelia-Zoia Zamfir, Elena Ilisiu, and Alina Nicolescu. "Evaluation of the Wool Production on Romanian Sheep Breeds." Annals of "Valahia" University of Târgovişte. Agriculture 15, no. 2 (2023): 1–6. http://dx.doi.org/10.2478/agr-2023-0010.

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Abstract Sheep breeding is a traditional activity in Romania and wool production has been for a long period the main resource for the farmers’ prosperity. The opportunity of this study was generated by two main aspects: the change of the exploitation directions of sheep towards milk and meat production, which contributed to the lack of interest in selection and breeding for wool and to the reduction of the productive level and quality parameters of the wool; the absence of a national standard for classifying raw wool adapted to the current breeds structure, the conditions of sheep farming and

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8

Ntsiapane, A. D., J. W. Swanepoel, A. E. Nesamvuni, and T. O. Ojo. "Assessing the efficiency of smallholder wool farmers in the changing paradigms of the Free State province of South Africa." South African Journal of Animal Science 53, no. 1 (2023): 125–32. http://dx.doi.org/10.4314/sajas.v53i1.14.

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The South African population is predicted to increase to almost 66 million by 2030. This necessitates paradigm shifts to improve agricultural efficiency. However, South African wool production has continuously declined over the past three decades. The study analysed the efficiency of smallholder wool farmers and identified the determinants of technical inefficiency in wool production in Thaba ‘Nchu and Botshabelo in the Mangaung Metro (Free State province, South Africa). A multistage sampling technique was used to select 351 participants. A stochastic frontier model was employed to analyse the

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9

Charlick, AJ, and GW Arnold. "Effect of bearing and rearing lambs on Merino wool production." Australian Journal of Experimental Agriculture 30, no. 5 (1990): 591. http://dx.doi.org/10.1071/ea9900591.

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Over a 15-year period, the greasy fleece weights of medium-wooled Merino ewes lambing in June in a 625 mm winter rainfall area in south-western Australia were examined in relation to the numbers of lambs born and reared. The ewes were set stocked at 6.7 ewes/ha on annual pasture. During this period selection for increased wool production was undertaken. A generalised linear model was used to assess the effects of bearing and rearing lambs. There was a significant (P<0.05) year x lambing interaction because of a different response over years 1-7 from that over years 8-15. Over years 1-7 when

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10

SEN, R. N. "Production of Aniline Black on Wool." Journal of the Society of Dyers and Colourists 32, no. 10 (2008): 244–45. http://dx.doi.org/10.1111/j.1478-4408.1916.tb00898.x.

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11

Wang, H. Y., S. W. Li, T. H. Wu, Z. H. Wu, and J. X. Guo. "The effect of androgen on wool follicles and keratin production in Hetian sheep." Brazilian Journal of Biology 81, no. 3 (2021): 526–36. http://dx.doi.org/10.1590/1519-6984.224056.

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Abstract To investigate the optimal androgen concentration for culturing Hetian sheep wool follicle and to detect effects of androgen concentration on wool follicle cell proliferation and apoptosis using immunofluorescence labeling and real-time quantitative fluorescence determinations of wool keratin-associated protein gene expression levels. Wool follicles were isolated by microdissection and wool follicles and skin pieces were cultured in various concentrations of dihydrotestosterone (DHT) in culture medium. Next, daily lengthwise growth measurements of wool follicles were obtained using a

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12

Foster, F. M., R. B. Jackson, D. L. Hopkins, and R. Corkrey. "Production and management considerations of running wethers, hemi-castrates and induced cryptorchids for wool production." Australian Journal of Experimental Agriculture 37, no. 3 (1997): 303. http://dx.doi.org/10.1071/ea95122.

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Summary. Male, fine wool Merino sheep which had been subjected to different methods of castration as lambs were assessed from 22 to 46 months of age for their suitability for wool production, their tolerance to posthitis and their carcass characteristics. Hemi-castrates produced significantly (P<0.001) more clean wool than induced cryptorchids of a similar fibre diameter. Induced cryptorchids and hemi-castrates were significantly (P<0.05) heavier than wethers. Partial hemi-castrates and induced cryptorchids had significantly (P<0.001) heavier and leaner carcasses (lower GR measurement

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13

Eady, SJ, DA Pritchard, and PK O'Rourke. "Effects of genotype and environment on wool production of Merinos at pasture at two locations in semi-arid tropical Queensland." Australian Journal of Experimental Agriculture 30, no. 6 (1990): 735. http://dx.doi.org/10.1071/ea9900735.

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The problem of low wool production in central- western and north- western Queensland led to a study of the relative wool production of different genotypes of Merino sheep in these 2 regions. A number of the bloodlines of sheep introduced to central western and north-western Queensland attained a higher mature liveweight (P<0.01) and produced more wool (P<0.05) than the locally bred sheep. Annual wool production was closely related to mature liveweight, and the strong wool South Australian Merinos were consistently the heaviest and produced the most wool. Ranking on fleece characteristics

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14

Lucia, Arianna, Hendrikus W. G. van Herwijnen, and Thomas Rosenau. "Wood-based resins and other bio-based binders for the production of mineral wool." Holzforschung 74, no. 6 (2020): 539–50. http://dx.doi.org/10.1515/hf-2019-0280.

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AbstractThe traditional binder used in mineral wool is phenolic resin that makes mineral wool insulations reliable and efficient. The toxicity and health hazards of phenol and formaldehyde are becoming more and more pressing, and the industrial production needs to focus on safer precursors. Several formulations of bio-based binders for mineral wool have been developed, meeting the challenge of performing equally well as conventional binders. Technical lignins, due to their intrinsic structure and their abundance, are good candidates for future industrial adhesives. Carbohydrates are other clas

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15

Swan, A. A., I. W. Purvis, and L. R. Piper. "Genetic parameters for yearling wool production, wool quality and bodyweight traits in fine wool Merino sheep." Australian Journal of Experimental Agriculture 48, no. 9 (2008): 1168. http://dx.doi.org/10.1071/ea07425.

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Genetic parameters were estimated for traits measured in the first year of production in a multi-bloodline flock of fine wool Merino sheep. Between 5025 and 9271 animals were measured, depending on the trait, and these animals were the progeny of up to 430 sires. Heritability estimates for fleece weight traits ranged from 0.37 to 0.49, while estimates for five wool quality traits ranged from 0.34 for staple strength to 0.66 for mean fibre diameter. For bodyweight, the heritability estimated at weaning was 0.20, and at the yearling age was 0.51. Maternal genetic effects were significant for fle

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16

Murphy, A., and J. Conington. "A genetic analysis of wool and lamb production traits in Scottish Blackface Sheep." Proceedings of the British Society of Animal Science 2002 (2002): 21. http://dx.doi.org/10.1017/s1752756200006773.

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Scottish Blackface sheep have a multi-purpose role in the UK to produce breeding females and lambs for meat consumption. Over the last fifty years, wool has accounted for a very low proportion of economical return from hill sheep production in the UK. In recent years, the ratio of the value of lamb meat to wool clip has altered, with wool becoming relatively more important in particular for hill breeds. The consequence of direct selection for improved carcass traits in these breeds on wool quality is unknown. With other sheep breeds such as Merino, selection for improved wool traits has largel

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17

de Rochambeau, H., R. G. Thébault, and J. Grun. "Angora rabbit wool production: non-genetic factors affecting quantity and quality of wool." Animal Science 52, no. 2 (1991): 383–93. http://dx.doi.org/10.1017/s0003356100012927.

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ABSTRACTA study was made of the wool production of 490 females and 137 males of a strain of French Angora rabbit. The female adults weighed 4107 g and produced 249 g of wool every 14 weeks. Production was low for the first harvest (35 g) which consisted mainly of short wool. It then increased rapidly (203 g for the third harvest). After the third harvest, three-quarters of long wool was also bristly. The length of bristles (102 mm) decreased by 4 mm, and that of downs (62 mm) increased by 3 mm when the harvest number went from two to four. The coefficient of correlation between wool production

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18

Komorowska, Monika, Marcin Niemiec, Jakub Sikora, et al. "Closed-Loop Agricultural Production and Its Environmental Efficiency: A Case Study of Sheep Wool Production in Northwestern Kyrgyzstan." Energies 15, no. 17 (2022): 6358. http://dx.doi.org/10.3390/en15176358.

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As a country with not only significant production potential but also fragmented land ownership, the Kyrgyz Republic struggles with environmental efficiency, which is a strategic element of environmental management in agricultural production. The objective of this study was to assess the environmental efficiency of sheep’s wool when used as a fertilizer in bean production in northern Kyrgyzstan. In this study, the efficiency indicator was taken to be GHG emissions per functional unit of product, using a proprietary methodology for calculating GHG emissions to determine the true value of this ma

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19

Roshier, DA, and I. Barchia. "Relationships Between Sheep Production, Stocking Rate and Rainfall on Commercial Sheep Properties in Western New South Wales." Rangeland Journal 15, no. 1 (1993): 79. http://dx.doi.org/10.1071/rj9930079.

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Historical sheep production and rainfall data from 14 properties in semi-arid western New South Wales were analysed for relationships between wool production, lamb marking percentage, stocking rate and rainfall. Twelve of the properties were located on predominantly chenopod shrubland (Atriplex spp. and Maireana spp.) and two on mulga (Acacia aneura) land types. The relationship between wool production per head (WOOLHD, kg greasylsheep) and rainfall (RF, mmlyear) was similar on 10 of the 11 properties with wool production and rainfall data. This was so despite differences in vegetation type an

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20

Magolski, J. D., J. S. Luther, T. L. Neville, et al. "Maternal nutrition during pregnancy influences offspring wool production and wool follicle development1." Journal of Animal Science 89, no. 11 (2011): 3819–23. http://dx.doi.org/10.2527/jas.2010-3687.

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21

CHERRIE, J., S. KRANTZ, T. SCHNEIDER, I. ÖHBERG, O. KAMSTRUP, and W. LINANDER. "AN EXPERIMENTAL SIMULATION OF AN EARLY ROCK WOOL/SLAG WOOL PRODUCTION PROCESS." Annals of Occupational Hygiene 31, no. 4B (1987): 583–93. http://dx.doi.org/10.1093/annhyg/31.4b.583.

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22

Селионова, Marina Selionova, Траисов, et al. "QUALITY INDICATORS OF WOOL CROSSBREDS BRIGHT AKZHAIK MEAT-WOOL BREED DEPENDING FROM THE SELECTION OF PARENTAL PAIRS." Bulletin Samara State Agricultural Academy 1, no. 2 (2016): 78–82. http://dx.doi.org/10.12737/19066.

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The purpose of the study is improving the wool productivity of sheep of Akzhaik meat-wool breed at the expense of different selections of parents. For research used two variants of selection of parental pairs: Akzhaik meat-wool sheep producing meat-tion type (weight not less than 110 kg, wool production in the original 9.5 kg, wool length of 15.0 cm, fineness of wool 50 quality) were paired with ewes class I and II at the age of 2.5 years is not a local type of herd age and sex depending on the class ewes were divided into two groups of 200 animals each. The same principle was formed the secon

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23

Shoja, J., H. Esfandyari, S. A. Rafat, and M. Dorostkar. "Computer-assisted image analysis for the comparison of sampling methods for assessing wool properties in Arkharmerino × Ghezel crossbreed sheep." Proceedings of the British Society of Animal Science 2009 (April 2009): 143. http://dx.doi.org/10.1017/s1752756200029823.

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Usually investigations on wool properties are carried out using classical instruments like a Projection Microscope at wool laboratories in Iran. It is readily acknowledged that the Projection Microscope is of limited usefulness. Firstly, it is a very slow and labour intensive technique. Secondly, it is very imprecise when a single operator conducts measurements within one laboratory. Image analysis presents a quick, reliable, unbiased technique for determining wool properties (Rose and Debra, 2001). The application of computer-assisted image analysis to the measurement of wool properties poten

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Akkus, Memis. "Hybrid composite board produced from wood and mineral stone wool fibers." BioResources 17, no. 4 (2022): 6245–61. http://dx.doi.org/10.15376/biores.17.4.6245-6261.

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Wood fiberboards are used extensively, mainly in the fields of furniture production, interior fittings, construction, etc. Mineral stone wool materials are used for heat and sound insulation in the construction industry. This study aimed to produce a new hybrid-based composite material by mixing fibers obtained from wood and mineral stone wool. For this purpose, hybrid fiberboards with 50, 40, 30, and 20% stone wool addition and a fiberboard group consisting of 100% pine and beech fibers (control sample) were produced in a hot press using thermoset-based urea formaldehyde and phenol formaldehy

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Ingham, Peter, Steven McNeil, Warren Meade, and Matthew Sunderland. "Wool and Carpets - 6000 Years of Innovation, Quality and Sustainability." Key Engineering Materials 671 (November 2015): 490–96. http://dx.doi.org/10.4028/www.scientific.net/kem.671.490.

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The first manufacture of rugs with pile yarns made from animal fibres was well over 6000 years ago and the oldest carpet still in existence is around 2400 years old. The carpets and rugs sector is the major end-use of strong wool which makes up around 45% of global wool production (fine wool comprises 35% of global production).The advantages and perceived deficiencies of wool carpets in comparison with newer generation synthetic carpets are highlighted with possible solutions and new directions for research. Improvements in these areas are essential for wool to maintain its share of the carpet

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Peri, Pablo Luis, Yamina M. Rosas, Emilio Rivera, and Guillermo Martínez Pastur. "Lamb and Wool Provisioning Ecosystem Services in Southern Patagonia." Sustainability 13, no. 15 (2021): 8544. http://dx.doi.org/10.3390/su13158544.

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In Southern Patagonia, grasslands are the principal food resource for sheep reared for meat and wool as the main provisioning ecosystem services (ES). The main objective of this study was to model lamb and wool production as provisioning ES at a regional scale using climatic, topographic, and vegetation variables from sheep farms across Santa Cruz province. At a regional level, animal yield ranged from 0.25 to 0.69 g lamb/m2/yr and 0.10 to 0.19 g greasy wool/m2/yr. We used multiple regression models to produce maps of lamb and wool provisioning ES across Santa Cruz province. The model for vari

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27

Stankov, Stanko. "Modern control of mineral wool production process." Chemical Industry 67, no. 2 (2013): 375–84. http://dx.doi.org/10.2298/hemind120428069s.

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In this paper, the control of the plant for mineral wool production consisting of a number of the technological units of different sizes and complexity is considered. The application of modern equipment based on PLC (Programmable Logic Controller) and SCADA (Supervisory Control And Data Acquisition) configuration provides optimal control of technological process. Described supervisory and control system is consisting of a number of units doing decentralized distributed control of technological entities where all possible situation are considered during work of machines and devices, which are i

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ROGERS, G. "Improvement of wool production through genetic engineering." Trends in Biotechnology 8 (1990): 6–11. http://dx.doi.org/10.1016/0167-7799(90)90123-f.

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29

Flamant, Jean-Claude. "Production of hides, skins, wool and hair." Livestock Production Science 42, no. 1 (1995): 100–101. http://dx.doi.org/10.1016/0301-6226(95)90045-4.

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MITCHELL., H. L. "PRODUCTION OF A SOLUBLE COMPOUND FROM WOOL." Journal of the Society of Dyers and Colourists 16, no. 2 (2008): 27. http://dx.doi.org/10.1111/j.1478-4408.1900.tb00192.x.

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Alpackiy, Dmitriy. "Recycling in the production of mineral wool." E3S Web of Conferences 383 (2023): 04086. http://dx.doi.org/10.1051/e3sconf/202338304086.

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The main heat-insulating material used in Russia is mineral wool. One of the problems of waste reclamation of mineral wool products is returning of chips and globules back to the solid fuel furnace. To solve the problem, it is proposed to briquette waste before feeding it into the furnace. The author suggests using alumina cements of Russian production as a binder. The choice of the binder is conditioned by the chemical composition of the cement. The second factor that was considered when choosing the binding material was its strength in the early stages. Samples of a mixture of waste and bind

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Zhao, Chun Zhi, Yi Liu, Shi Wei Ren, and Yan Jiao Zhang. "Life Cycle Assessment of Typical Glass Wool Production in China." Materials Science Forum 913 (February 2018): 998–1003. http://dx.doi.org/10.4028/www.scientific.net/msf.913.998.

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Glass wool is the roll felt product produced by melting and fiberizing glass and then adding adhesive for curing processing. It is well-shaped, thermally insulated and corrosion resistant and has low volume density, low thermal conductivity, good acoustic absorptivity and stable chemical properties. By taking 1t glass wool as the functional unit, this paper quantitatively obtains that the impact of the product on primary energy demand, greenhouse effect, acidification potential, photochemical ozone formation potential and respirable inorganics is 1.12×105MJ/t, 8×103kg CO2 equivalent/t, 84.1kg

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Doyle, PT, RA Love, and TW Plaisted. "Mineral supplementation and wool production of young Merino sheep on the south coast of Western Australia." Australian Journal of Experimental Agriculture 35, no. 4 (1995): 437. http://dx.doi.org/10.1071/ea9950437.

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Wool-free liveweight change (LWC), wool growth rate, annual wool production, and wool characteristics of young Merino wethers fed supplements of lupins with gypsum or a multi-element mineral lick were examined in 12 experiments at 5 farms between 1989 and 1992. The source of sheep varied between experiments; age was 4.5-6.5 months and liveweight 28-37 kg at the beginning of supplementation. Sheep were fed lupins, lupins coated with gypsum (15-20 g/kg lupins), or lupins along with access to the mineral lick (offered at 140 g/sheep.week). The amount of lupins offered in all treatments within any

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Kukenienė, Žydrūnė, and Vaidotas Vaišis. "POSSIBILITIES OF USING STONE WOOL WASTE IN COMPOSTING." Mokslas - Lietuvos ateitis 2, no. 5 (2010): 41–47. http://dx.doi.org/10.3846/mla.2010.089.

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The aim of research is to check the possibility of composting stone wool waste using sewage sludge. The problem is huge amounts of dumped waste (sewage sludge, production waste in the stone wool) without any treatment. There is no practice to compost production waste in the stone wool in Lithuania. Stone wool waste can be one of bulk materials in the process of sewage sludge composting and can improve the quality of the prepared compost. Production waste in the stone wool contains phenol and formaldehyde that are very hazardous pollutants, and therefore it is important to follow its concentrat

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Al-Saadi, Majid J. "Effects of Sumac (Rhus coriaria) Seeds and Exogenous Fibrolytic Enzymes on Wool Growth of Awassi Male Lambs." World's Veterinary Journal 13, no. 2 (2023): 293–99. http://dx.doi.org/10.54203/scil.2023.wvj31.

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Nutrition can have a significant effect on animal production. In recent years, many compounds have been widely used as feed additives to stimulate animals’ appetites and consequently improve animal productivity. Exogenous fibrinolytic enzymes are one of these feed additives, which have been used as a digestive stimulant in different types of animals. Sumac (Rhus coriaria) seeds and leaves have been widely used as an appetite stimulant. Therefore, this study aimed to determine the dietary effects of using 0.3% exogenous fibrolytic enzymes and 3% of grinds Rhus coriaria seeds on wool production

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Danila, Angela, Mariana Costea, Lenuta Profire, et al. "A Sustainable Approach to a Cleaner Production of Antimicrobial and Biocompatible Protein Fibers." Polymers 14, no. 15 (2022): 3194. http://dx.doi.org/10.3390/polym14153194.

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This study presents the production, characterization, and application of celandine (Chelidonium majus L.) extracts (aqueous, acidic, alcoholic, and ultrasound) on wool fibers and their characterization. The study aims to obtain an ecologically dyed wool support that possesses biocompatible and antimicrobial activities. The plant extracts were characterized based on pH, total polyphenol content, and berberine content. Ecologically dyed wool supports were characterized based on scanning electron microscopy, levelness index, color measurements, contact angle indirect biocompatibility, and antibac

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Akbulut, Nihat, and Mustafa Özdemir. "Analytical characterisation and production of wool wax from Akkaraman and Morkaraman sheep's wool." Journal of Chemical Technology and Biotechnology. Chemical Technology 35, no. 6 (2007): 308–10. http://dx.doi.org/10.1002/jctb.5040350607.

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Steponaitis, Laimutis, and Sigitas Vėjelis. "STRENGTH AND DEFORMABILITY OF MINERAL WOOL SLABS UNDER SHORT – TERM CYCLIC COMPRESSION." Engineering Structures and Technologies 2, no. 3 (2010): 86–92. http://dx.doi.org/10.3846/skt.2010.12.

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The strength and deformability of mineral wools slabs, as well as thermo-insulating characteristics can be attributed to the most important indices determining the popularity of these products in practice. The mechanical resistance and stability of mineral wool slabs in use (at construction) of buildings, as well as the requirements for energy saving and heat conservation are in most cases related to the essential requirements set for a building. The mechanical characteristics of mineral wool slabs are subject to structure, density of material, percentage of binder in product, as well as produ

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Sun, Wu. "On Hair Follicle Development and Wool Production Traits in Sheep: A Review." International Journal of Agriculture and Biology 25, no. 02 (2021): 450–54. http://dx.doi.org/10.17957/ijab/15.1687.

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Hair follicle and skin development is a complex biological process involving many regulatory molecules. Wool trait is a complex quantitative trait controlled by multiple genes and affected by environment. In this paper, the histomorphology of hair follicle development in sheep and the molecular mechanism of hair follicle and wool traits formation were reviewed in order to provide theoretical basis for breeding and selection of sheep wool traits. © 2021 Friends Science Publishers

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Khаmraeva, Sanovar, Dilfuza Giyasova, and Dilfuza Kazakova. "Processing of local wool fiber and technology of obtaining threads of mixed composition." Modern Innovations, Systems and Technologies 2, no. 1 (2022): 83–93. http://dx.doi.org/10.47813/2782-2818-2022-2-1-83-93.

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This article demonstrates the use of natural products, such as cotton stalk powder and laundry soap, in the processing of sheep's wool grown in Uzbekistan, which soften the sheep's wool and facilitate its blending with other fibers. At the same time, detailed information is provided that the local sheep wool fiber belongs to the group of coarse wool fibers, from which it is not suitable for the production of textile threads of medium linear density. There are scientifically substantiated results on the smoothness and breaking load of composite yarns in the spinning process, the tendency to elo

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Rathie, KA, ML Tierney, and JC Mulder. "Assessing Wiltshire Horn-Merino crosses. 1. Wool shedding, blowfly strike and wool production traits." Australian Journal of Experimental Agriculture 34, no. 6 (1994): 717. http://dx.doi.org/10.1071/ea9940717.

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Wiltshire Horn-Merino (WH-M) crosses of 1/2, 5/8 and 3/4 Merino content were compared over 10 years for wool shedding, blowfly strike frequency and wool production traits. Merinos and 1/2 Merino WH-M were compared over 4 years. For wool production traits, 1/2 and 5/8 Merino WH-M ewes were compared to Border Leicester-Merino (BL-M) ewes over 2 years. Shedding increased with age for all WH-M genotypes, with 3/4 Merinos showing less shedding than 1/2 Merinos at all ages. At 1 and 2 years of age, 5/8 Merinos were intermediate between the other 2 WH-M genotypes, but at later ages they were similar

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Osikowski, M., B. Borys, and M. A. Osikowski. "Performance of crossbreds of Polish Merino dams with F1 rams: Finnsheep x Polish Merino. B. Wool production of ewes." Agricultural and Food Science 60, no. 6 (1988): 546–48. http://dx.doi.org/10.23986/afsci.72307.

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The investigations were carried out on wool of 180 non-selected ewes with 25 % Finnsheep (F) genotype (F x PM x PM) and 51 purebred Polish Merino (PM) ewes as controls. The shearing took place at 23 months of age, after a year’s growth of fleece. Greasy and clean wool production, length and diameter of fibres as well as wool character evaluated by subjective appraisal were recorded. Crossbred ewes had a slightly lower greasy wool production (F x PM x PM—4.0 kg, PM—4.3 kg), but a much higher rendement (60.2 and 51.2 % resp.) and a little higher clean wool yield 2.38 versus 2.20 kg. Wool of the

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Liu, S. M., and D. G. Masters. "Quantitative analysis of methionine and cysteine requirements for wool production of sheep." Animal Science 71, no. 1 (2000): 175–85. http://dx.doi.org/10.1017/s1357729800055004.

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AbstractThe conventional system of estimating metabolizable protein requirement is unsuitable for defining amino acid requirements because nitrogen loss cannot be converted to amino acid loss, and because there is a lack of data on the utilization efficiencies of individual amino acids for various productive purposes. Therefore, we are proposing an alternative approach. In this review, we use methionine (Met) and cysteine (Cys) for wool production in sheep as examples, and define requirement as retention in both body and wool protein, plus the amount of obligatory oxidation that accompanies th

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Shi, Ruijun, Shuwei Li, Penggang Liu, et al. "Identification of key genes and signaling pathways related to Hetian sheep wool density by RNA-seq technology." PLOS ONE 17, no. 5 (2022): e0265989. http://dx.doi.org/10.1371/journal.pone.0265989.

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Hetian sheep is a breed of sheep unique to the Hetian area of Xinjiang whose wool is used for producing blankets. Individual differences and hair follicle density are the key factors affecting wool production. Therefore, this study aimed to assess the Hetian sheep having different wool densities to statistically analyze the wool traits and hair follicle parameters. Furthermore, the transcriptome sequencing analysis was performed on the skins with different wool densities. The results showed that wool quantity and total hair follicle density of the high wool density sheep was significantly high

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Qi, Guo Chao, Feng Jun Shan, and Qu Kai Zhang. "Research and Development of Mineral Wool Production with High Temperature Industrial Residual Materials." Materials Science Forum 743-744 (January 2013): 301–5. http://dx.doi.org/10.4028/www.scientific.net/msf.743-744.301.

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Mineral wool is a type of important material for basic infrastructure development and national economy. It is widely used as insulation material in construction industries. Some high temperature industrial solid waste materials, such as blast furnace slag, cyclone slag and some metal slag, after composition adjusting and reheating, can be directly used to produce mineral wool. The recycle of residual heat in the hot solid wastes can decrease the cost of mineral wool and is beneficial for energy conservation, environmental protection and social sustainable development. The development and techn

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SHISHLINA, N., O. ORFINSKAYA, D. KISELEVA, et al. "BRONZE AGE WOOL FABRICS OF SOUTH SIBERIA: RESULTS OF TECHNOLOGICAL, ISOTOPIC AND RADIOCARBON ANALYSES." TRANSACTIONS OF THE INSTITUTE FOR THE HISTORY OF MATERIAL CULTURE Russian Academy of Science 23 (2020): 70–81. http://dx.doi.org/10.31600/2310-6557-2020-23-70-81.

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The paper presents the results of technological, isotopic and radiocarbon analyses of wool fabric samples from the Bronze Age burials of South Siberia. It is suggested that the appearance of wool fibers in this region was connected to the Late Andronovo population of the middle — early second half of the II mil. BC. The location of the textile production centers remains an open question, because the isotopic composition of the studied samples (nitrogen, carbon, variations of 87Sr/86Sr ratios) shows that wools textiles from the Uzhur, Uibat and Ust-Erba cemeteries could not have been produced l

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Davies, SC, CL White, IH Williams, JG Allen, and KP Croker. "Sublethal exposure to corynetoxins affects production of grazing sheep." Australian Journal of Experimental Agriculture 36, no. 6 (1996): 649. http://dx.doi.org/10.1071/ea9960649.

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This paper reports the production losses resulting from treating sheep with sublethal doses of corynetoxins, the causal agent of annual ryegrass toxicity. Merino ewes were given 3 levels of corynetoxins twice weekly for 11 weeks from 26 days before the start of joining to day 51 of pregnancy, giving a cumulative dose of 0 , 0.4 or 0.8 mg/kg liveweight. The effect on ovulation, pregnancy, lamb birth weight, lamb survival and weaning weight were measured along with the liveweight and wool growth of the ewes. Corynetoxin treatment depressed (P<0.005) the activity of uridine diphospho-N-acetylg

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Barnes, A. L., K. P. Croker, J. G. Allen, and N. D. Costa. "Lupinosis and reproduction reduce the wool growth of Merino ewes." Australian Journal of Experimental Agriculture 37, no. 5 (1997): 515. http://dx.doi.org/10.1071/ea97004.

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Summary. Lupinosis was induced in Merino ewes by subcutaneous injections of phomopsins. Liver damage and impairment of liver function was measured by increases in plasma activities of glutamate dehydrogenase and gamma glutamyl transferase, plasma concentrations of bilirubin, and plasma clearance of bromosulfthalein. The wool growth of the ewes during and after exposure to phomopsins at different periods relative to mating was measured, and the impact of lupinosis on annual wool production assessed. Phomopsin administration decreased the length of staple grown during, and for at least 6 weeks a

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Butler, LG, BJ Horton, PM Williams, and RG Banks. "Wool production and heterosis by the Merino, the Polwarth, and their reciprocal crosses." Australian Journal of Experimental Agriculture 33, no. 4 (1993): 397. http://dx.doi.org/10.1071/ea9930397.

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Tasmanian Merinos and Polwarths were mated in each of 2 years to produce 2 drops of Merino, Polwarth, and F1 reciprocal cross progeny. Polwarths had weaning weights similar to Merinos but were 14% heavier as hoggets. Polwarths grew a similar amount of wool of 11% greater (P<0.001) fibre diameter; however, wool production was 9% less efficient based on metabolic weight. Polwarths displayed an advantage in resistance to footrot. There was a marked Polwarth maternal effect of about 16% on weaning weight but no elfect on hogget weight. The Polwarth maternal effect on fleece weight and efficienc

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Cottle, DJ. "Effects of defaunation of the rumen and supplementation with amino acids on the wool production of housed Saxon Merinos. 3. Cottonseed meal and hydroxymethyl-methionine." Australian Journal of Experimental Agriculture 28, no. 6 (1988): 699. http://dx.doi.org/10.1071/ea9880699.

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In experiment 1 six groups, each of 10 superfine Merino wethers were individually penned indoors and hand-fed chopped lucerne hay with either control pellets, cottonseed meal pellets (CSM) or cottonseed meal plus hydroxymethyl-methionine pellets (CSMEP). Following their shearing, the 6 groups in experiment 2 were hand-fed 1 of 3 chopped lucerne hay:oat rations [75: 25,50: 50,25: 75% (w/w)]. Each sheep was also fed either control pellets (25 g/day) or CSMEP pellets (75 g/day) in a cross-over design experiment. In both experiments, the rations were fed at maintenance level and were offered 3 tim

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