Fleece Traits and Important Physical Properties of Hair Fibers in Lori Goats
محورهای موضوعی : Camel
م. صالحی
1
(Department of Animal by Product, Animal Science Research Institute, Karaj, Iran)
ا. لواف
2
(Department of Animal Science, Karaj Branch, Islamic Azad University, Karaj, Iran)
ط. فرهوش
3
(Department of Animal Science, Shabestar Branch, Islamic Azad University, Shabestar, Iran)
کلید واژه: age, sex, Goat, fleece, hair fiber,
چکیده مقاله :
This study was conducted to investigate the hair production and fleece characteristics of hairy goats according to the sex and age of animals. The material of the study consisted one total data of 73 hair goats, which were between more than one year-old and one year-old Lori goats from both sexes (26 males and 47 females). The overall fleece weight, fiber length, lock length, washing yield, hair fiber diameter, coefficient of variation f diameter, breaking load, tenacity and elongation were 429 ± 23.7 g, 6.2 ± 0.3 cm, 8.9 ± 0.4 cm, 73.9 ± 0.6%, 82.6 ± 1.8 micron, 24.3 ± 0.8%, 7.6 ± 0.3kgf, 10.2 ± 0.4 gf/Tex and 14.0 ± 1.0%, respectively. It was found that age and sex had a significant effect on fleece weight and lock length. Furthermore, fiber length, fiber diameter and coefficient of variation of fiber diameter were affected by age of Lori goats. Adults showed a tendency to present higher fiber tenacity (10.3±0.6 gf/tex) and lower fiber elongation (12.4±1.4%).
این تحقیق به منظور تعیین مقدار تولید مو و ویژگی‎های الیاف بزهای مویی لری با توجه به سن و جنس آنها انجام گرفت. داده‏های آزمایش مربوط به اطلاعات به‌دست آمده از 73 بز در دو گروه سنی (یکساله و بزرگتر از یکساله) و از هر دو جنس (26 بز نر و 47 بز ماده) بودند. متوسط وزن بیده، طول تار، طول استاپل، راندمان بیده، قطر الیاف، ضریب تغییرات قطر الیاف، ضریب پارگی، مقاومت و قابلیت ارتجاعی اندازه‌گرفته شده به‌ترتیب عبارت بودند از: 7/23 ± 429 گرم، 3/0 ± 2/6 سانتی‎متر، 4/0 ± 9/8 سانتی‎متر، 6/0 ± 9/73 درصد، 8/1 ± 6/82 میکرون، 8/0 ± 3/24 درصد، 3/0 ± 6/7 کیلوگرم نیرو، 4/0 ± 2/10 گرم نیرو بر تکست و 0/1 ± 0/14 درصد. سن و جنس اثر معنی‎داری برروی وزن بیده و طول استاپل داشتند. در عین حال، طول تار، قطر الیاف و ضریب تغییرات قطر الیاف در دو گروه سنی متفاوت بود. افراد بزرگتر از یکسال الیافی با مقاومت بیشتر (6/0±3/10 گرم نیرو بر تکست) و قابلیت ارتجاعی کمتری (4/1±4/12 درصد) تولید نمودند که نتایج از نظر آماری معنی‎دار نبود.
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