Variability of fibre quality on Chinese Alashan Left Banner White Cashmere goat

Pallotti, Stefano; Wang, Jun; Peirong, Tang; Antonini, Marco; Lou, Yujie; Pieramati, Camillo; Valbonesi, Alessandro; Renieri, Carlo

doi:10.1080/1828051x.2017.1350121

Cited by 10 publications

(8 citation statements)

References 11 publications

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“…Similarly, McGregor and Butler observed an increasing trend of CP with age in Australian goats, though the maximum value appeared at six years old (McGregor and Butler 2008a). The CP of males in this study was much higher than that of females, echoing the results of previous studies (Rischkowsky and Momen 2012;Bai et al 2015;Pallotti et al 2018;Wani et al 2018). However, Newman and Paterson (1996) explained that the cashmere production of males was lower than that of females for New Zealand cashmere goats.…”

Section: Discussionsupporting

confidence: 86%

“…Most studies (Ferreira et al 2014;Visser and Marle-K€ oster 2014) have demonstrated positive genetic and phenotypic correlations between CP and MFD, which is consistent with the results of this study, in which cashmere production increased 31.67 g per 1 mm increase in mean fibre diameter. Nevertheless, a study performed by Stefano Pallotti showed that CP had a negative genetic correlation and positive phenotypic correlation in Chinese Alashan Left Banner White Cashmere goats, which may be explained by the diverse breeds and data structures (Pallotti et al 2018). The regression coefficient of FL in IMCGs was 26.50 g/ cm, which confirms the positive genetic correlation between CP and FL found in previous studies (Zhou et al 2003;Bai et al 2006).…”

Section: Discussionsupporting

confidence: 78%

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Relationships between cashmere production and other important economic traits of Inner Mongolia cashmere goats

Wang

et al. 2019

Italian Journal of Animal Science

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Previous studies have shown that cashmere production (CP) is related to fibre length (FL), mean fibre diameter (MFD) and live body weight (LWT) in Inner Mongolia cashmere goats (IMCGs). However, the correlation magnitudes of these relationships have not been determined to date. The production year, herd, age, birth status, sex, cashmere production, fibre grades, fibre length, mean fibre diameter and live body weight were obtained for IMCGs from yearlings to 5-yearolds. A multilevel mixed model was constructed to discern the impact factors affecting CP. It was concluded that the production year, herd, age, sex, FL, MFD and LWT had highly significant effects on CP (p < .01). Birth status had no influence on CP (p > .05). The restricted maximum likelihood method (REML) was used to estimate the relationship of CP to all impact factors. Positive correlations were observed between CP and other important economic traits. The regression coefficients for FL, MFD and LBW were 26.50 g/cm, 31.67 g/mm and 2.26 g/kg, respectively. The model fit is relatively good, and the adjusted R-squared value is 0.43. Using a similar method, the relationship of CP to these impacting factors within each fleece grade was analysed. The results showed that LWT had no significant effect on CP in superfine and coarse cashmere grades. Additionally, MFD was not related to CP in coarse cashmere. However, FL, MFD and LWB had highly significant effects on CP in all other FD grades. The regression coefficients of cashmere production for other economic traits varied based on fleece grade. HIGHLIGHTS Cashmere production was positively correlated with live body weight for Inner Mongolia Cashmere goats (IMCGs), which can facilitate indirect selection and reduce the cost of measurement. The fibre diameter should be considered to maintain good quality by establishing a nucleus herd, thereby increasing economic income and protecting a variety of resources.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 78%

Relationships between cashmere production and other important economic traits of Inner Mongolia cashmere goats

Wang

et al. 2019

Italian Journal of Animal Science

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“…An example of breed development through divergence from a common genetic pool is the Small Spitz breeds. Phylogenetically, the Small Spitz clade (Figure 2) includes the Pomeranian, American Eskimo, and Volpino Italiano (Figure 1p An additional example of genetic data superseding historical lore is that of the Segugio Italiano breed which, since 1989, has been classified as two separate breeds, the Pelo Raso (smooth haired) ( Figure 1j) and Pelo Forte (rough haired) ( Figure 1k) (Pallotti et al, 2017). Early writings by the Greek historian Arrian (c. 92-175 AD) describe "Segusian hounds" as "shaggy" (Arrian, 1831), suggesting that the original breed may have more closely resembled the Pelo Forte of today.…”

Section: Italian Dog Breedsmentioning

confidence: 99%

Studies of modern Italian dog populations reveal multiple patterns for domestic breed evolution

Talenti

Dreger

Frattini

et al. 2018

Ecology and Evolution

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Through thousands of years of breeding and strong human selection, the dog (Canis lupus familiaris) exists today within hundreds of closed populations throughout the world, each with defined phenotypes. A singular geographic region with broad diversity in dog breeds presents an interesting opportunity to observe potential mechanisms of breed formation. Italy claims 14 internationally recognized dog breeds, with numerous additional local varieties. To determine the relationship among Italian dog populations, we integrated genetic data from 263 dogs representing 23 closed dog populations from Italy, seven Apennine gray wolves, and an established dataset of 161 globally recognized dog breeds, applying multiple genetic methods to characterize the modes by which breeds are formed within a single geographic region. Our consideration of each of five genetic analyses reveals a series of development events that mirror historical modes of breed formation, but with variations unique to the codevelopment of early dog and human populations. Using 142,840 genome‐wide SNPs and a dataset of 1,609 canines, representing 182 breeds and 16 wild canids, we identified breed development routes for the Italian breeds that included divergence from common populations for a specific purpose, admixture of regional stock with that from other regions, and isolated selection of local stock with specific attributes.

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“…Cashmere fibre is generally non-medullated and has a mean maximum diameter of 19 µm and the coefficient of variation around the mean should not exceed 24% [5]. The average CVFD values for Mongolian breeds of cashmere goats was 22.5 ± 0.04% with an individual range of 17.0-26.9 %, showing less variation compared to Alashan white cashmere goats of Inner Mongolia, China, where CVFD ranged from 27.09% to 41.39% [10]. Cashmere samples with a coefficient of variability up to ≤24% of the diameter of cashmere fibres accounted for 80.0-88.9% of all samples.…”

Section: Discussionmentioning

confidence: 99%

Study on distinct quality properties of cashmere from local goat breeds of Mongolia

Begzjav¹,

Dorj

Vanchigdorj³

et al. 2022

Mong. J. Agric. Sci.

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The research was carried out in 2021 to determine the specific quality properties of local Mongolian breeds of cashmere goats. The research covered 122 herder households from 13 soums in 8 aimags. A total of 4,560 samples were collected from 1,522 goats representing the main factors determining cashmere quality: ecological habitat, various herd management practices, local breeds, age and sex of goats, and cashmere colour. Cashmere fibre diameter (FD), fibre curvature (FC), and coefficient of variation of fibre diameter (CVFD) were tested in 1,522 samples, and cashmere length was tested in 1,387 samples. The overall mean fibre diameter (MFD) was 16.1 μm, mean length (FL) was 44.9 mm, and fibre curvature (FC) was 61.9°/mm. Cashmere from one-year-old goats was significantly finer than cashmere from older goats (about 1.0 μm, P<0.05). Cashmere from does in the samples tested was significantly finer than cashmere from the bucks. Over the range in mean fibre diameter, from 13.5 to 19.0 µm, fibre curvature declined from 87.8 to 44.2°/mm. Of all cashmere samples, 40.6% belonged to super fine (≤15.5µm), 43.7% and 12.1% had a fibre diameter between 15.51-16.80 and 16.81-17.50 μm, respectively, and were suitable for knitwear. Only 3.6% of samples tested were between 17.51 to 19.00 μm and may only be suitable for weaving. The average CVFD values of cashmere of Mongolian breeds of cashmere goats was 22.5 ± 0.04%, with an individual range of 17.0-26.9%. This shows that it has lesser variation than Alashan white cashmere goats of Inner Mongolia Autonomous Region, China, where CVFD ranged from 27.09% to 41.39%. Compared to cashmere from China, Tajikistan, and Kyrgyzstan, with mean fibre curvature of 46, 46, and 58mm, respectively, the cashmere of local Mongolian breeds of goats would be considered curvier and longer, which makes stronger yarns. Short, higher crimped, softer cashmere may be preferred for woollen-spun yarns, but longer, lower crimped, softer cashmere may be preferred for woven yarn destined for knitwear. Fibre curvature of Mongolian cashmere goats declined an average of 6.1°/mm for a 1µm increase in MFD, which is similar to the 5.8°/mm observed in Chinese Liaoning goats, but less than the 13.6°/mm measured in controlled experiments with Australian goats. Significant differences were found between the cashmere of local Mongolian breeds of goats kept in open, natural rangelands and herded in a nomadic way in distinct ecological conditions of harsh continental climate compared to those breeds of goats kept in intensive farming. This shows the potential to offer distinct quality cashmere from local Mongolian breeds while maintaining proper management and selective breeding.

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Variability of fibre quality on Chinese Alashan Left Banner White Cashmere goat

Cited by 10 publications

References 11 publications

Relationships between cashmere production and other important economic traits of Inner Mongolia cashmere goats

Relationships between cashmere production and other important economic traits of Inner Mongolia cashmere goats

Studies of modern Italian dog populations reveal multiple patterns for domestic breed evolution

Study on distinct quality properties of cashmere from local goat breeds of Mongolia

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