Evaluation certain environment factors on wool characteristics of Arabi sheep breeds

Abstract

Evaluation and grading of wool based on sex and age can help to improve economic value of wool. This study was conducted to investigate the wool production and fleece characteristics of Arabi sheep in Khuzestan province The right mid-side wool samples were taken from 90 Arabi sheep (1 -4 years; 16 male and 74 female) by hand shearing. The staple length of shoulder, flank and rump were 13.18 ± 0.27, 13.31 ± 0.22 and 14.27 ± 0.25 cm, respectively. The greasy fleece weight, wool wax, vegetable matter, yield percentage, fiber diameter and its coefficient variation measures were 1.72 ± 0.06 Kg; 2.77% ± 0.12%; 0.54% ± 0.07%; 73.36% ± 0.68%; 30 ± 0.41 μm; 30.23% ± 0.3% respectively. Correspondingly, the medulated fibers, true wool fiber and Kemp fibers were 21.6% ± 1.9%, 76.1% ± 2.04% and 2.5% ± 0.57% respectively. Age and sex had a significant influence on staple lengths. Fleece weight (P < 0.01) and wool wax were (P < 0.05) affected by sex. There was no significant interaction between age and sex groups for fiber characteristics, but it was important for staple between body location (P < 0.05). There were a low considerable kemp and CV of wool diameter percentage on Arabi sheep in comparison with the other Iranian native sheep. The wide variation in fleece weight (0.8 -3.9 kg); mean staple lengths (8.8 -19.2 cm); medulated and kemp (0 -84.04 and 0% -30.22%); fiber diameter (24.9 -37.43 μm) suggest potential for improvement of economical traits.

Genetic analysis of fleece and post-weaning body weight traits in Makuie sheep

“…The effect of sex on other traits was non-significant. Significant effects of sex on economically relevant traits have also been reported by other researchers (Snyman et al, 1995;Mohammadi et al, 2010;Taherpour et al, 2012 GFW1 = greasy fleece weight at 6 months age; GFW2 = greasy fleece weight at 16 months age; GFW3 = greasy fleece weight at 28 months of age; GFW4 = greasy fleece weight at 40 months of age; GFW5 = greasy fleece weight at 52 months of age; BW6 = body weight at 6 months of age; BW9 = body weight at 9 months of age; BW12 = body weight at yearling age; FD = fiber diameter; SL1 = staple length (shoulder); SL2 = staple length (side); SL3 = staple length (rump); %TW = percentage of true wool; %H = percentage of hair; %K = percentage of kemp; SY = shearing year; BY = birth year; BT = birth type; AD = age of dam; NS = non-significant; *significant at 0.05 probability level; **significant at 0.01 probability level; ***significant at 0.001 probability level. (-) = not studied.…”

“…of records; SD = standard deviation; GFW1 = greasy fleece weight at 6 months of age; GFW2 = greasy fleece weight at 16 months of age; GFW3 = greasy fleece weight at 28 months of age; GFW4 = greasy fleece weight at 40 months of age; GFW5 = greasy fleece weight at 52 months of age; BW6 = body weight at 6 months of age; BW9 = body weight at 9 months of age; BW12 = body weight at yearling age; FD = fiber diameter; SL1 = staple length (shoulder); SL2 = staple length (side); SL3 = staple length (rump); %TW = percentage of true wool, %H; percentage of hair; %K = percentage of kemp. Based on data obtained from another Iranian sheep breed (Taherpour et al, 2012), the wide variation of fleece and post-weaning traits in Makuie sheep suggests potential for improvement of these economically important traits.…”

Effect of Treatment With a Mixture of Amino Acids at Different Levels on Some Biochemical Parameters and Wool, Carcass Characterizes in the Arabi Lambs Breed

“…Samples of wool were taken from all animals before the beginning and after 90 days of the experiment from the left shoulder in an area that placed in the midway between the belly and top lines by marking approximately 10 cm 2 (Taherpour et al, 2012) and stored in nylon sacks. Those samples were transported to the laboratory to determine the trails of wool.…”

“…Those samples were transported to the laboratory to determine the trails of wool. Weights of curd wool and clean wool and fiber length were measured according to (Taherpour et al, 2012).…”

Brown bear and Persian leopard attacks on humans in Iran

“…Human-carnivore interactions also vary by human activity and among human gender or age class. For instance, livestock in many parts of the world more typically are tended by adult males, potentially increasing their exposure to carnivores [9,[12][13][14][15]. In Asia, some protected areas are interspersed with crop fields, forest reserves, and human settlements, which can result in frequent carnivore attacks on humans and in many cases, retaliatory killings of carnivores [16][17][18].…”