Relevant bibliographies by topics / Alpacka fleece

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  2. Dissertations / Theses
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Academic literature on the topic 'Alpacka fleece'

Author: Grafiati
Published: 2 July 2021
Last updated: 7 February 2022

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Journal articles on the topic "Alpacka fleece"

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McGregor, B. A., and K. L. Butler. "Sources of variation in fibre diameter attributes of Australian alpacas and implications for fleece evaluation and animal selection." Australian Journal of Agricultural Research 55, no. 4 (2004): 433. http://dx.doi.org/10.1071/ar03073.

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Sources of variation in fibre diameter attributes of Australian alpacas and implications for fleece evaluation and animal selection were investigated using data collected in the years 1994–97, from 6 properties in southern Australia. Data were analysed using REML (multiple regression analysis) to determine the effect on mean fibre diameter (MFD) and coefficient of variation of MFD (CV(FD)) of age, origin (property), sex (entire male, female), breed (Huacaya, Suri), liveweight, fibre colour, individual, and interactions of these effects. The mean (n = 100) age (range) was 4.2 years (0.1–11.9), liveweight 72.0 kg (12.0–134 kg), MFD 29.1 μm (17.7–46.6 μm), CV(FD) 24.33% (15.0–36.7%). A number of variables affected MFD and CV(FD). MFD increased to 7.5 years of age, and correlations between MFD at 1.5 and 2 years of age with the MFD at older ages were much higher than correlations at younger ages. Fibre diameter 'blowout' (increase with age) was positively correlated with the actual MFD at ages 2 years and older. There were important effects of farm, and these effects differed with year and shearing age. Suris were coarser than Huacayas with the effect reducing with increased liveweight; there was no effect of sex. Fleeces of light shade were 1 μm finer than dark fleeces. CV(FD) declined rapidly between birth and 2 years of age, reaching a minimum at about 4 years of age and then increasing; however, CV(FD) measurements on young animals were very poor predictors of CV(FD) at older ages, and the response of CV(FD) to age differed with farm and year. Suris had a higher CV(FD) than Huacayas on most properties, and MFD, liveweight, and sex did not affect CV(FD). Fleeces of dark shade had higher CV(FD) than fleeces of light shade in 2 of the years. It is concluded that there are large opportunities to improve the MFD and CV(FD) of alpaca fibre through selection and breeding. The potential benefit is greatest from reducing the MFD and CV(FD) of fibre from older alpacas, through reducing the between-animal variation in MFD and CV(FD). Sampling alpacas at ages <2 years is likely to substantially decrease selection efficiency for lifetime fibre diameter attributes.
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2

Ferguson, M. B., B. A. McGregor, and R. Behrendt. "Relationships between skin follicle characteristics and fibre properties of Suri and Huacaya alpacas and Peppin Merino sheep." Animal Production Science 52, no. 7 (2012): 442. http://dx.doi.org/10.1071/an11233.

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We aimed to quantify the number, type and arrangement of skin follicles in Huacaya and Suri alpaca skin and correlate their follicle characteristics with fibre traits of harvested fibre and compared these relationships with those of Merino sheep. Fibre and skin samples were collected from the mid-side of 12 Huacaya alpacas, 24 Suri alpacas and 10 Merino sheep. The mean fibre diameter (MFD ± s.e.) of the Huacaya and Suri were: 35.5 ± 0.9 and 28.3 ± 1.0 μm, respectively. The follicle groups found for alpacas were very different from the normal trio of primary follicles found in sheep and goats. The follicle group of the alpacas consisted of a single primary follicle surrounded by a variable number of secondary follicles. The mean ± s.e. primary follicle density was 3.1 ± 0.3 and 2.7 ± 0.1 follicles/mm2 for Huacaya and Suri, respectively. The mean ± s.e. secondary follicle density (SFD) was 13.7 ± 1.2 and 17.5 ± 0.6 follicles/mm2 for Huacaya and Suri, respectively. The mean ± s.e. ratio of secondary to primary follicles (S/P ratio) was 5.1 ± 0.5 for the Huacaya and 7.3 ± 0.2 for the Suri alpacas. The sheep had higher S/P ratios and SFD, lower MFD and produced significantly heavier fleeces. The key correlations found between traits in alpacas include a negative correlation between SFD and MFD (r = –0.71, P = 0.001) and a negative correlation between S/P ratio and MFD (r = –0.44, P = 0.003) and a positive correlation between S/P ratio and total follicle density (r = 0.38, P = 0.010). The study revealed that important relationships exist between alpaca skin follicle characteristics and fibre characteristics. It was the number of secondary follicles in a group that imparts density and a corresponding reduced MFD.
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3

Renieri, Carlo, Alessandro Valbonesi, Vincenzo La Manna, Marco Antonini, and Moises Asparrin. "Inheritance of Suri and Huacaya type of fleece in Alpaca." Italian Journal of Animal Science 8, no. 1 (January 2009): 83–91. http://dx.doi.org/10.4081/ijas.2009.83.

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4

Valbonesi, A., S. Cristofanelli, F. Pierdominici, M. Gonzales, and M. Antonini. "Comparison of Fiber and Cuticular Attributes of Alpaca and Llama Fleeces." Textile Research Journal 80, no. 4 (February 16, 2010): 344–53. http://dx.doi.org/10.1177/0040517509337634.

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5

Aylan-Parker, J., and B. A. McGregor. "Optimising sampling techniques and estimating sampling variance of fleece quality attributes in alpacas." Small Ruminant Research 44, no. 1 (April 2002): 53–64. http://dx.doi.org/10.1016/s0921-4488(02)00038-x.

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Soroko, Maria, Anna Wyrostek, Kevin Howell, and Krzysztof Dudek. "Comparison between the thermal insulation properties of Huacayo alpaca and Merino sheep fleeces." Veterinarski arhiv 89, no. 4 (September 1, 2019): 519–28. http://dx.doi.org/10.24099/vet.arhiv.0350.

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7

McGregor, B. A., H. E. Ramos, and E. C. Quispe Peña. "Variation of fibre characteristics among sampling sites for Huacaya alpaca fleeces from the High Andes." Small Ruminant Research 102, no. 2-3 (February 2012): 191–96. http://dx.doi.org/10.1016/j.smallrumres.2011.07.016.

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8

McGregor, B. A. "Production, attributes and relative value of alpaca fleeces in southern Australia and implications for industry development." Small Ruminant Research 61, no. 2-3 (February 2006): 93–111. http://dx.doi.org/10.1016/j.smallrumres.2005.07.001.

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9

Quispe-Peña, EC, AG Poma-Gutiérrez, BA McGregor, and J. Bartolomé-Filella. "Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production." Archivos de medicina veterinaria 46, no. 1 (2014): 151–55. http://dx.doi.org/10.4067/s0301-732x2014000100021.

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10

Pallotti, Stefano, Carlos Pacheco, Alessandro Valbonesi, and Marco Antonini. "A comparison of quality of the fleece and follicular activity between sheared and non-sheared yearling alpacas (Vicugna pacos)." Small Ruminant Research 192 (November 2020): 106243. http://dx.doi.org/10.1016/j.smallrumres.2020.106243.

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Dissertations / Theses on the topic "Alpacka fleece"

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Nivrén, Linnéa. "Fertile Wear : Underwear in relation to manufacturing toxicity, the ecosphere and our reproductive zones." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105578.

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Every artifact in this consumerism world is connected to Earth’s four ecological layers. Everything around us, air, organism, water, and soil/rock also known by the names; atmosphere, biosphere, hydrosphere, and lithosphere. All together form the ecosphere, the place that contains all materials and resources that we use when creating artifacts.  »Every material that we use comes from the ecosphere and eventually goes back to it.« - Ann Thorpe The way humans use, extract, manufacture and dispose of materials has concerned me for many years, long before I started this design program. It has formed my way of making as a designer, and because of my love for textiles, I have been applying it in that field of practise. I want to design textiles that function and can be used frequently, with a purpose and in the end, decompose before I do. The aim of this conducted design project is to, in a playful way, break down the barrier between maker and user. Combined with unfolding the hidden truths about garments, how they are manufactured and where those textile components originate from. This would enable me to broaden my knowledge in the field and in return I will have the opportunity to share my insights with the public. Within this project I will also put the emphasis on the impact textiles have on our bodies, reproductive health and surrounding ecosystems.  Designing with the intention to highlight topics like this, the whole life cycle of garments, creates a stronger bond between user and maker. This is something I as a designer and maker want to build my foundation on.  In order to do this I needed to pin down where this conducted design project could take place and what sustainable possibilities of change it could embed for the future.
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Books on the topic "Alpacka fleece"

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Kyle, Tracey, and Yoss Sanchez. Alpaca Pati's Fancy Fleece. Running Press Kids, 2019.

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Book chapters on the topic "Alpacka fleece"

1

Alfonso, L., J. Buritica, R. Quispe, and I. Quicaño. "Derivation of economic values for fibre diameter fleece weight in alpacas." In Fibre production in South American camelids and other fibre animals, 145–50. Wageningen: Wageningen Academic Publishers, 2011. http://dx.doi.org/10.3920/978-90-8686-727-1_19.

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You might also be interested in the extended bibliographies on the topic 'Alpacka fleece' for particular source types:
Journal articles
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