Effect of sex and rearing system on the quality and mineral content of fiber from raeini cashmere goats

Shamsaddini-Bafti, Mehrdad; Salehi, M.; Maghsoudi, Ali; Mostafa-Tehrani, A.; Mirzaei, Farhad; Momen, Syed Mojtaba Syed

doi:10.1186/2049-1891-3-20

Cited by 10 publications

(6 citation statements)

References 16 publications

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“…The mean fibre diameter of male and female Liaoning cashmere goats is 16.12 mm and 15.97 mm, respectively (Wu 2018). Shamsaddini-Bafti reported that the mean fibre diameter of Raeini cashmere goats is approximately 18.0 mm (Shamsaddini-Bafti et al 2012). The cashmere production in our study was higher than that found for Long Dong cashmere goats (Xue et al 2011).…”

Section: Discussioncontrasting

confidence: 71%

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: Discussioncontrasting

confidence: 71%

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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“…The cashmere obtained from goats ( Capra hircus ), is one of the finest and softest fibres produced by animals and is used exclusively in the production of luxurious textile products [ 1 ]. Cashmere, famous for its high performance and rareness, is more expensive than wool with an identical diameter [ 2 ] and the demand for it is growing [ 3 ]. The majority of cashmere is produced in China, Mongolia, Iran and several other countries, where cashmere production makes an important contribution to the economy [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of melatonin implantation on cashmere yield, fibre characteristics, duration of cashmere growth as well as growth and reproductive performance of Inner Mongolian cashmere goats

Duan

Sun

et al. 2015

J Animal Sci Biotechnol

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BackgroundExogenous melatonin could induce cashmere growth. However, induced growth of cashmere fleece by melatonin implants cannot be combined with the typical growth, resulting in earlier shedding followed by another cycle of cashmere growth. To address this issue, we examine the effects on the cashmere yield, fibre characteristics, and the growth and reproductive performance of cashmere goats of planned administration of melatonin.MethodsEighteen half-sib, female goats were assigned to two treatments (n = 9) including a control and a treatment where melatonin (2 mg/kg BW) was implanted at the end of April and end of June. Cashmere growth and shedding were observed for approximately 1 year following implantation. Fibre samples were collected monthly to determine cumulative cashmere length. Initiation and cessation dates for cashmere growth as well as the rate of cashmere growth were calculated. Cashmere yield, weight gain of dam, kidding date, litter size, and birth weight were also recorded.ResultsMelatonin implantation increased cashmere yield by 34.5 % (control 553.7 g vs. melatonin 745.0 g; P < 0.01), cashmere length by 21.3 % (control 95.2 mm vs. melatonin 115.4 mm; P < 0.01), and decreased fibre diameter by 4.4 % (control 14.6 μm vs. melatonin 14.0 μm; P < 0.03). In melatonin-treated goats, the average initiation date was earlier than in control goats (May 18, 2013 vs. July 2, 2013; P < 0.01) but there was a similar cessation date (March 22, 2014 vs. March 27, 2014). Consequently, the duration of cashmere growth was longer in melatonin-treated goats than in control goats (307 vs.270 days; P < 0.01). The final BW, average daily gain, kidding date, litter size, and birth weight were not influenced by melatonin implantation.ConclusionsThese data indicate that melatonin implantation (2 mg/kg BW) on two occasions (late April and June) increased cashmere yield by combining the induced growth of cashmere fleece with the typical growth and decreased the fibre diameter without changing dam growth rate or reproductive performance.

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“…The Liaoning Cashmere goat is one of the major Cashmere goat breeds in China, which is famous for its higher cashmere yield, higher net cashmere rates and stable heritability. Unlike wool and mohair, the growth and zinc (Zn) content of cashmere were affected by rearing systems for its seasonal growth (Shamsaddini‐Bafti et al., ). In China, the recommended dietary Zn levels for cashmere goats are based on earlier research on grazing.…”

Section: Introductionmentioning

confidence: 99%

Influence of different dietary zinc levels on cashmere growth, plasma testosterone level and zinc status in male Liaoning Cashmere goats

Liu

Sun

Yang

et al. 2015

Animal Physiology Nutrition

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The experiment was conducted to investigate the influence of different levels of zinc (Zn) on cashmere growth, plasma testosterone and Zn profile in male Cashmere goats. Twenty-eight male Liaoning Cashmere goats, 3 years old and body weight at 56.2 ± 2.45 kg, were assigned to four groups. The animals were fed a basal diet containing of 45.9 mg Zn/kg dry matter (DM) basis and supplemented with 0, 20, 40 or 80 mg Zn (reagent grade ZnSO₄ ·7H₂ O) per kg DM for 90 days. There was no significant effect on growth and diameter of cashmere fibre for Zn supplemented in diets. However, the length and growth rate of wool were improved (p < 0.05) with dietary Zn. The length and growth rate of wool were higher (p < 0.05) for the groups supplemented with 40 or 80 mg Zn/kg DM compared with that of 20 mg Zn/kg DM treatment group. Plasma testosterone concentration was increased for Zn supplemented in diets, and the testosterone concentration was higher (p < 0.05) in goats fed on the diet supplemented with 40 or 80 mg Zn/kg DM compared with those fed on basal diet. Plasma Zn concentrations increased (p < 0.05) with increasing dietary Zn and supplemented with 40 and 80 mg Zn/kg DM groups improved plasma Zn concentration (p < 0.05) more than 20 mg Zn/kg DM group. Fibre Zn content was higher (p < 0.05) in groups supplemented with 40 or 80 mg Zn/kg DM compared with control group, but no difference between Zn-supplemented groups (p > 0.05). The activity of plasma alkaline phosphatase was increased (p < 0.05) due to dietary Zn supplementation; however, no difference was found between supplemented treatment groups (p > 0.05). In conclusion, Zn content (45.9 mg Zn/kg DM) in control diet was insufficient for optimal wool growth performance, and we recommended the level of dietary Zn for such goats is 86 mg/kg DM during the breeding season and cashmere fibre growing period.

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Effect of sex and rearing system on the quality and mineral content of fiber from raeini cashmere goats

Cited by 10 publications

References 16 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

Effects of melatonin implantation on cashmere yield, fibre characteristics, duration of cashmere growth as well as growth and reproductive performance of Inner Mongolian cashmere goats

Influence of different dietary zinc levels on cashmere growth, plasma testosterone level and zinc status in male Liaoning Cashmere goats

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