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Journal articles on the topic 'Sheep shearing'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

KHUDAIBERDYEV, N. R., and V. A. NASIBYANTS. "ANALYSIS OF THE MOBILE SHEARING STATIONS’ DESIGNS." Техника и технологии в животноводстве 14, no. 2 (2024): 61–66. http://dx.doi.org/10.22314/27132064-2024-2-61.

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Sheep farming is the main livestock industry in many countries. Further sheep farming growth in order to the population with cheap food products fully satisfying on the industry processes comprehensive mechanization basis, taking into account the sheep and pastures’ specific conditions should be carried out. There in sheep keeping technology, the most responsible and time consuming process is sheep shearing. The sheep shearing machine development’s history was mainly along the shearing machine design improving. However, even a completely perfect shearing machine is not able the labor productiv

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2

Hatcher, S., K. D. Atkins, and K. J. Thornberry. "Strategic use of sheep coats can improve your economic return." Australian Journal of Experimental Agriculture 48, no. 7 (2008): 762. http://dx.doi.org/10.1071/ea08036.

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Merino wethers from a mixed bloodline flock in western New South Wales were coated for varying periods of time after shearing between August 1999 and August 2000. The coated and a similar number of uncoated control wethers from each of nine bloodlines (three fine and six superfine) were grazed together as part of a larger mob. Dyebands were placed in the fleeces of each wether before fitting of the coats and were removed before shearing when a midside sample was taken and several subjective assessments and objective measurements were made of each fleece. It was concluded that coating sheep for

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3

Aleksiev, Y. "Effects of time of shearing on growth rate and some physiological responses in fine wool of two tooth sheep." Biotehnologija u stocarstvu 23, no. 5-6-2 (2007): 179–89. http://dx.doi.org/10.2298/bah0702179a.

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Rectal temperature, pulse and respiratory rate dynamics and body weight changes were studied in two tooth fine wool sheep kept in barn and shorn at different time of the year. The sheep from the experimental group were shorn in February and the control ones - in May. A considerable decrease (P<0,01) in the daily gain was observed during the first weeks after winter shearing compared to pre shearing period and to unshorn controls but later on the growth rate was higher in the shorn sheep. The remarkable fall (P<0,01) in rectal temperature following the winter shearing persisted for two mo

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4

Hudson, P. R. W. "High Technology Options for Sheep Shearing: Improved Shearing Devices." Outlook on Agriculture 15, no. 4 (1986): 218–24. http://dx.doi.org/10.1177/003072708601500408.

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Wool production is a very important factor in the Australian economy, representing $3 billion in exports. Nevertheless, rising production costs and growing competition from manmade fibres necessitate increased attention to all aspects of productivity if the industry worldwide is to remain viable. As some 80 per cent of labour content is involved in harvesting wool, improvements in the shearing process potentially offer particular opportunities for economies. This article reviews the results of a widely based Australian research programme which has investigated the fundamental physics of wool s

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5

Ostapchuk, P. S., V. S. Pashtetsky, E. N. Usmanova, et al. "Environment and sheep wool quality indicators." IOP Conference Series: Earth and Environmental Science 965, no. 1 (2022): 012028. http://dx.doi.org/10.1088/1755-1315/965/1/012028.

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Abstract The features of the skin histology and the determination of the quality indicators of wool of young female Tsigai breed sheep are presented in the article. A positive correlation was found between the fineness of the wool and the live weight (p ≤ 0.05); between the shearing of natural wool and the fineness of the wool (p ≤ 0.05); between the shearing of natural wool and the live weight (p ≤ 0.05); between the washed wool and the fineness of the wool (p ≤ 0.05) and the shearing of natural wool (p ≤ 0.05). There is no reliable relationship between the fineness and the percentage of the

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6

Tracy, Robert. "Sheep-Shearing at Vanity Fair." Notes and Queries 63, no. 2 (2016): 252–54. http://dx.doi.org/10.1093/notesj/gjw018.

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7

Irandoust, Shabnum, Karen Heath, and Roger W. Byard. "Sheep shearing and sudden death." Journal of Forensic and Legal Medicine 20, no. 8 (2013): 944–46. http://dx.doi.org/10.1016/j.jflm.2013.06.015.

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8

Hernawan, Hudiana. "Sheep Shearing Impact on Garutian Sheep Physiological Responses." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 67, no. 6 (2019): 1441–45. http://dx.doi.org/10.11118/actaun201967061441.

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This study aims to determine the sheep’ physiological response as a result of shearing by evaluating heat tolerance coefficient. The observed measurements of heat tolerance coefficient were rectal temperature and respiratory rate. The results of this experimental method showed that the average rectal temperature of all Garut sheep groups ranged from 38.6 ℃–39.0 ℃, while the average respiratory rate of both sheep groups was 35.1 breaths per minute to 45.1 breaths per minute. Most of the Garut sheep groups during the study have 2.5 to 3.0 heat tolerance coefficient in which the recommended norma

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9

Taofik, A., S. Bandiati, A. M. Maskoen, and M. Yusuf. "The effects of shearing and ascorbyl palmitate administration on physiological and blood metabolite profile of Padjadjaran sheep under heat exposure treatment." Journal of the Indonesian Tropical Animal Agriculture 46, no. 1 (2021): 12–19. http://dx.doi.org/10.14710/jitaa.46.1.12-19.

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Ascorbyl-6-palmitate (AP) was a lipid-soluble synthetic ester of ascorbic acid that has been used as a preservation agent for foods and as an antioxidant in cosmetics and related products. This study aims to investigate the effect of shearing management and ascorbyl palmitate administration on physiological and hematological profiles in under heat load Padjadjaran sheep. The physiological profile involves respiration rate (RR), Pulse rate (PR), and rectal temperature (RT). Twenty rams Padjadjaran 1 – 1,5 year-old, weighing between 25 to 47.5 kg used from sheep breeding station Purwakarta, West

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10

Fazio, Esterina, Pietro Medica, Cristina Cravana, and Adriana Ferlazzo. "Pituitary-Adrenal Axis Responses to Routine Management Procedures in Sheep (Ovis aries)." Acta Scientiae Veterinariae 44, no. 1 (2018): 7. http://dx.doi.org/10.22456/1679-9216.81164.

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Background: Shearing is considered as a stressful factor in sheep, capable of causing some behavioural changes including variations of body condition and hormonal and haematochemical parameters. On these basis, circulating ACTH and cortisol concentrations were determined in sheep before and after exposure to aversive stimuli in order to evaluate the potential use of these hormones to objectively measure physical and mental stress responses to isolation, restraint and shearing.Materials, Methods & Results: Forty Pinzirita sheep, used as experimental group, were evaluated in baseline conditi

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11

Rushen, J., and P. Congdon. "Relative aversion of sheep to simulated shearing with and without electro-immobilisation." Australian Journal of Experimental Agriculture 26, no. 5 (1986): 535. http://dx.doi.org/10.1071/ea9860535.

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Merino wethers were repeatedly chased into a shearing shed, timed running down a race, and subjected to 1 of 3 treatments: simulated shearing (handled in the normal manner but no wool was removed), simulated shearing while restrained with an electro-immobiliser, or electro-immobilised. Compared with a control group, all 3 treatments resulted in a progressive decrease in the speed of running through the race, with the decrease being largest for the group subjected to simulated shearing while electro-immobilised. The use of the immobiliser also increased the time required to push the animals thr

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12

Hudson, P. R. W. "High Technology Options for Sheep Shearing: II – Automated Mechanical Shearing." Outlook on Agriculture 16, no. 1 (1987): 14–20. http://dx.doi.org/10.1177/003072708701600103.

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In the first article of this trilogy [1], the cost-price squeeze facing the Australian woolgrower was advanced as the motivation for spending more than $3 million p.a. on the Australian Wool Harvesting Programme. The first article summarized the use of technology to improve wool severing devices. This article addresses the progress of a novel technology – the use of robots to shear sheep.

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13

Baidolotov, Sh K., T. O. Osmonkanov, and M. S. Narymbetov. "IMPROVING THE SHEEP SHEARING EFFICIENCY BY A SHEARING STATION AND CUTTING PAIRS RATIONALLY ORGANIZING." Техника и технологии в животноводстве 14, no. 4 (2024): 75–81. https://doi.org/10.22314/27132064-2024-14-4-75.

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The main product of sheep farming is wool, due to its special technical properties it is an indispensable raw material for various products manufacturing. The sheep shearing stations technological lines’ analysis is presented. Based on this analysis results, a fundamentally new shearing station’s scheme is proposed, and sheep driving for shearing and bathing line’s parameters calculation is presented. Mechanization of sheep driving makes it possible to the number of workers reducing and labor productivity increasing, because shorn sheep driving immediately to preventive treatment and animals b

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14

Taofik, Ahmad, and Muhammad Yusuf. "Oxidative Stress Status in Heat Shock Sheep Controlled Shearing and Ascorbyl Palmitate Administration." Jurnal Peternakan 21, no. 1 (2024): 90. http://dx.doi.org/10.24014/jupet.v21i1.26951.

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Indonesia has very hot temperatures and high humidity, making it unfavorable for sheep whose covered with thick fur. Shearing enlarges and accelerates heat dissipation from the sheep's body, giving antioxidants that help reduce the negative effects of excessive free radical production. Ascorbic acid is an antioxidant but is easily decomposed when it enters the digestive system of ruminants. Ascorbyl palmitate (AP) is ascorbic acid in the form of an ester which is insoluble in water. The aim of this study was to analyze the effect of shearing and administration of AP antioxidants on oxidative s

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15

Key, S. J., J. P. Trevelyan, and B. J. Stone. "Manufacturing Applications from Robotic Sheep Shearing." CIRP Annals 35, no. 1 (1986): 309–12. http://dx.doi.org/10.1016/s0007-8506(07)61895-2.

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16

Pehlivan, Erkan, Mahmut Kaliber, Yusuf Konca, and Gürsel Dellal. "Effect of shearing on some physiological and hormonal parameters in Akkaraman sheep." Asian-Australasian Journal of Animal Sciences 33, no. 5 (2020): 848–55. http://dx.doi.org/10.5713/ajas.19.0400.

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Objective: Shearing is one of the practices that is applied periodically to fiber producing animals, which can also alter resistance of animals to high temperatures in especially summer months. This study aimed to investigate effects of shearing on some physiological and hormonal parameters in Akkaraman sheep during summer season.Methods: This study was carried out on 39 non-pregnant Akkaraman ewes (aged 1.5 years at the beginning of experiment). The 39 ewes were chosen randomly from the flock belonging to the Erciyes University and they were assigned to two groups as follows: i) group A (n =

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17

Trevelyan, James P. "Robots in the shearing shed: Automated shearing of sheep using robots." Advanced Robotics 2, no. 1 (1987): 3–8. http://dx.doi.org/10.1163/156855387x00020.

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18

Pulido-Rodríguez, Lina Fernanda, Alfredo Manuel Franco Pereira, Fábio Luís Henrique, et al. "Effect of Shearing for Improving the Thermoregulatory Responses of Crossbred Sheep During Heat Stress." Veterinary Sciences 12, no. 4 (2025): 358. https://doi.org/10.3390/vetsci12040358.

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Shearing to improve heat dissipation is common in sheep farming. This study evaluated the influence of shearing on thermoregulatory responses of crossbred sheep from adapted breeds exposed to heat stress. Ten ewes were kept in a climate chamber exposed to heat stress (10–13 h), reaching 37 ± 1.0 °C for nine days, during two consecutive periods, without shearing, and then at 14 days after shearing, evaluating all variables. Rectal temperature, respiration rate, sweating rate, ocular surface temperature, and skin temperature were analyzed at 7, 10, 13, 17, and 20 h, and blood cortisol was analyz

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19

Marshall, R. N., and A. F. Burnett. "A kinematic, kinetic and electromyographic comparison of stooped sheep shearing techniques and shearing with a sheep manipulator." Applied Ergonomics 35, no. 2 (2004): 137–45. http://dx.doi.org/10.1016/j.apergo.2003.11.003.

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20

Parr, R. A., I. F. Davis, and A. J. Tilbrook. "Effect of shearing on oestrus and ovulation in sheep." Journal of Agricultural Science 113, no. 3 (1989): 411–12. http://dx.doi.org/10.1017/s0021859600070143.

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Shearing causes a rapid increase in plasma cortisol concentrations (Kilgour & de Langen 1970; Purchas 1973; Fulkerson & Jamieson 1982), indicating that acute physiological responses are associated with the procedure. Environmental stress before mating can result in a delay in the onset of oestrus (Doney et al. 1973) and a reduction in ovulation rates (Doney et al. 1976). Dobson (1988) demonstrated that shearing caused a reduction in the luteinizing hormone (LH) response to exogenous gonadotrophin releasing hormone (GnRH) in anoestrous ewes. Such a response to shearing could influence t

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21

Lucas, Peri, and Brian Horton. "Comparative costs, chemical treatments and flystrike rates in mulesed and unmulesed sheep flocks as predicted by a weather-driven model." Animal Production Science 53, no. 4 (2013): 342. http://dx.doi.org/10.1071/an12246.

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A computer model for flystrike risk was used to predict the expected costs, pesticide used and number of sheep struck, according to time of shearing and crutching, for the regions Flinders Island, Gunning and Inverell. A comparison was carried out between mulesed and unmulesed sheep and the program optimised the preventive chemical treatments required to minimise overall costs associated with flystrike and flock treatments. This study examined cost differences between mulesed and unmulesed hoggets and ewes where the only change in management was in the method and timing of pesticide treatment.

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22

Fleet, M. R. "Development of black pigmented skin spots and pigmented wool fibres in a Merino flock—causes, field observations, and wool measurement." Australian Journal of Agricultural Research 57, no. 7 (2006): 751. http://dx.doi.org/10.1071/ar05032.

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The development of black-grey pigmented skin spots and pigmented wool fibres on adult Merino sheep over a 3-year period was assessed. Effects of long-term grazing of oestrogenic pasture and multiple shearing were studied. The number of affected sheep and number of pigmented spots on affected sheep increased with age, with the greatest increase at 8.5 years age. Grazing of oestrogenic pastures had no effect but twice yearly shearing increased the development of pigmented spots after 2 years of treatment. Measurements on fleeces and top from sheep with no apparent pigmented spots showed that thi

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23

Hudson, P. R. W. "High Technology Options for Sheep Shearing III: Chemical and Biological Defleecing." Outlook on Agriculture 16, no. 2 (1987): 68–76. http://dx.doi.org/10.1177/003072708701600204.

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Two earlier articles have considered the cost-price squeeze facing the Australian woolgrower, and the solutions being sought to reduce wool harvesting costs. The first concentrated on the improvements to existing shearing methods, especially the shearing mechanism itself. The second summarised the progress of a programme aiming to automate shearing. This concluding article considers the research which has been undertaken to evaluate chemical and biological methods of wool harvesting.

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Solovyov, S. A., M. S. Turgenbaev, and A. N. Rusakov. "High-Frequency Electric Shearing Unit for Sheep." Russian Agricultural Sciences 44, no. 5 (2018): 490–92. http://dx.doi.org/10.3103/s1068367418050191.

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25

Trevelyan, J. P. "Sensing and control for sheep shearing robots." IEEE Transactions on Robotics and Automation 5, no. 6 (1989): 716–27. http://dx.doi.org/10.1109/70.88094.

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26

Hordiichuk, N. M., L. M. Hordiichuk, and I. Yu Salamakha. "The effect of technological stress on the biochemical parameters of the blood of ewes." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 25, no. 99 (2023): 190–94. http://dx.doi.org/10.32718/nvlvet-a9931.

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In the course of the research, the effect of technological stress on the biochemical parameters of the blood of Ukrainian Mountain Carpathian sheep was studied before shearing and after it on the first and fifth day. Zootechnical, clinical-biochemical, biometric research methods were used. The research results showed that after shearing, stress in sheep of the first and second groups was clinically manifested by general depression, accelerated heartbeat and breathing. Such differences in the frequency of heart contractions and the number of respiratory movements in ewes can be explained by inc

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James, P. J., B. J. Horton, N. J. Campbell, D. L. Evans, J. Winkleman, and R. McPhie. "Population dynamics and production effects of sheep lice (Bovicola ovis Schrank) in extensively grazed flocks." Animal Production Science 51, no. 8 (2011): 753. http://dx.doi.org/10.1071/an11008.

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An experiment was conducted to characterise population dynamics of lice and associated production loss in extensively grazed flocks infested at different times after shearing. Merino wethers were allocated to six groups of 31 sheep. In the first year (Y1), one sheep in each of two groups was infested with 2500 lice at 6 weeks after shearing (September), sheep in two groups were infested at 4 months (December) and two groups remained uninfested. In year 2 (Y2), infestations carried over from Y1, but a lousy sheep was added to each 6-week infestation mob. In year 3 (Y3), the infested mobs were t

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28

TEGZA, И. М. "LIVE WEIGHT AND WOOL PRODUCTIVITY OF SHEEP OF THE KAZAKH FAT-TAILED SHEEP BREED OF DIFFERENT COLOR." Sheep, goats, woolen business, no. 2 (2021): 29–30. http://dx.doi.org/10.26897/2074-0840-2021-2-29-30.

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29

Rusakov, A. N., and M. S. Turgenbaev. "Monitoring of the cutting device of shearing machines for sheep." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 9 (September 5, 2021): 18–22. http://dx.doi.org/10.33920/sel-10-2109-03.

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The article presents monitoring of cutting machines of sheep shearing machines. In general, shearing machines have low-cutting machines, which is due to the production of the largest wool cutting. It was found that with increasing cutting speed, the force on the cut of wool decreases. The speed of submission of the machine at strippers with low qualification is 0,3–0,7 m/s; average 0,4–0,8 m/s; high 0,5–1,1 m/s. The width of the comb grip is the main constructive parameter of the shearing machine, which affects its productivity, priority is given to wide-grasping machines having a width of 76,

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Khant, Malhar, Rakesh J. Modi, Nitin R. Patel, Kishan N. Wadhwani, and Mohsin M. Pathan. "Effect of Roofing Materials on Hemato-Biochemical, Hormonal and Antioxidant Profile of Sheared and Non-Sheared Sheep." INDIAN JOURNAL OF VETERINARY SCIENCES AND BIOTECHNOLOGY 17, no. 01 (2021): 48–51. http://dx.doi.org/10.21887/ijvsbt.17.1.12.

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The effect of roofing material on hemato-biochemical, hormonal and antioxident parameters of sheared and non-sheared sheep was invastigated. Twenty four adult dry indigenous sheep were distributed randomly on the basis of body weight (20-35 kg) into two roof treatment groups, i.e., T1: asbestos roof and T2: agronet roof. Each treatment comprised of six sheared and six non-sheared animals. Hemoglobin (g/dL) and PCV (%) concentrations of sheep were comparable between roof treatments and between shearing practices. Serum glucose level was significantly (p less than 0.05) higher in sheared and non

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31

Hargreaves, A. L., and G. D. Hutson. "The effect of repeated handling on the stress response of sheep to handling." Proceedings of the British Society of Animal Production (1972) 1989 (March 1989): 110. http://dx.doi.org/10.1017/s0308229600011016.

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The stimuli which are most potent in eliciting a stress response to handling are often part of the management procedure itself (eg wool removal during shearing). If sheep handling is to be made less stressful, then alternative methods may have to be found which do not interfere with the procedure. Such alternatives may involve altering either the context in which sheep undergo handling procedures, or their experience of handling. This study tested whether repetition could modify the physiological response of sheep to handling.Twenty three-year-old Merino wethers were sham shorn four times at i

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32

GLASS, M. HOLM, and RH JACOB. "Losses of sheep following adverse weather after shearing." Australian Veterinary Journal 69, no. 6 (1992): 142–43. http://dx.doi.org/10.1111/j.1751-0813.1992.tb07486.x.

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33

Elhadi, Hashim M. "The effect of shearing on the Najdi sheep." Journal of Arid Environments 15, no. 3 (1988): 307–11. http://dx.doi.org/10.1016/s0140-1963(18)31067-x.

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34

TAKEMURA, Yuji. "Influence of shearing on the thermoregulation of sheep." Japanese Journal of Sheep Science 2007, no. 44 (2007): 6–13. http://dx.doi.org/10.11595/jpnjsheepsci1964.2007.6.

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35

McGregor, B. A., K. L. Butler, and M. B. Ferguson. "The allometric relationship between clean mohair growth and the fleece-free liveweight of Angora goats is affected by liveweight change." Animal Production Science 53, no. 2 (2013): 154. http://dx.doi.org/10.1071/an12070.

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Clean fleece weight (CFWt) is affected by liveweight and change in liveweight in Merino sheep, Angora and cashmere goats. However, how these relationships progress as animals age has not been elucidated. Measurements were made over 12 shearing periods on a population of Angora goats representing the current range and diversity of genetic origins including South African, Texan and interbred admixtures of these and Australian sources. Records of breed, sire, dam, date of birth, dam age, birthweight, birth parity, weaning weight, liveweight, fleece growth and fleece quality were taken for does an

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Yuldashbaev, Yusupzhan A., Yury A. Vatnikov, Pavel A. Rudenko, and Andrey A. Rudenko. "Features of the functional state of the organism of sheep under stress." RUDN Journal of Agronomy and Animal Industries 17, no. 2 (2022): 193–202. http://dx.doi.org/10.22363/2312-797x-2022-17-2-193-202.

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The stresses that arise during routine animal husbandry procedures, such as milking, shearing, weighing, loading and hoof care, are an actual problem in animal husbandry. The components of economic damage under stress are a decrease in overall resistance and productivity, deterioration in product quality, an increase in labor costs and funds per unit of production, an increase in animal morbidity and mortality. The studies were carried out on the basis of Belozernoe farm in the Salsky district, the Rostov region. A complex of clinical and laboratory studies was performed on 18 sheep (10 Romano

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Dabiri, N., C. W. Holmes, S. N. McCutcheon, W. J. Parker, and S. T. Morris. "Resistance to cold stress in sheep shorn by cover comb or standard comb." Animal Science 60, no. 3 (1995): 451–56. http://dx.doi.org/10.1017/s1357729800013321.

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AbstractThe cover comb has been developed in New Zealand as a means of increasing residual fleece depth after shearing and so increasing the resistance of shorn sheep to cold stress.The effects of shearing by cover comb and standard comb were studied over 2 days pre-shearing and 10 days post-shearing in eight pairs of non-pregnant, non-lactating 2-year-old ewes. Animals were housed and given a maintenance level of chaffed lucerne hay. One member of each pair was shorn with a cover comb, the other with a standard comb. Each pair was exposed to ‘cold plus wind’ (7°C ambient temperature, 7 km/h a

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Campbell, A. J. D., J. W. A. Larsen, and A. L. Vizard. "The effect of annual shearing time on wool production by a spring-lambing Merino flock in south-eastern Australia." Animal Production Science 51, no. 10 (2011): 939. http://dx.doi.org/10.1071/an10270.

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Time of shearing affects many aspects of wool production and sheep health but no study has examined these factors concurrently in a spring-lambing, self-replacing Merino flock in southern Australia. A 5-year field experiment compared wool production in spring-lambing Merino ewes and their progeny shorn at different times and managed under commercial conditions in south-eastern Australia. Groups of 200 adult ewes were shorn in December, March or May, and their progeny were shorn in December or October, March or June, or May or July, respectively. There was no consistent association between time

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Mahn, Jeffrey, and John Pearse. "Assessment of the noise emission of sheep shearing systems." Noise Control Engineering Journal 59, no. 1 (2011): 87. http://dx.doi.org/10.3397/1.3519641.

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40

KORNIENKO, P. P. "Skin-wool cover of sheep during pasture and year-round stable keeping of animals." Sheep, goats, wool business, no. 4 (2023): 38–41. http://dx.doi.org/10.26897/2074-0840-2023-4-38-41.

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The positive influence of year-round stabling (in comparison with stabling-pasture) on the formation of skin and wool cover: the total thickness of skin and its separate layers, the density of hair follicles, physical and technical properties and wool shearing has been established in sheep of the Prekos breed. The studied technology in growing of repair young sheep is acceptable in conditions of sheep breeding farms of the Central Black Earth zone.

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Lokanadam, B., V. Subramaniam, and T. Ramasami. "Correlation of shearing properties with the structure of garment leathers." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 4 (1990): 838–39. http://dx.doi.org/10.1017/s0424820100177325.

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Shearing property is of fundamental importance in influencing the complex deformations of a garment leather during use. The properties such as stretch, shape retention etc., are closely related to the shearing behaviour of garment leather. Although, textile fabrics have been investigated extensively for their shearing properties(1-3), the studies on leather have been limited. It is logical to expect the three-dimensional structure of leather and the intrinsic properties of collagenous fibre would be markedly different from those of other textile fabrics. The shearing property of a fabric can b

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KOLOSOV, YU A. "THE EFFECT OF THE INTENSITY OF SELECTION AND THE SELECTION DIFFERENTIAL ON THE LIVE WEIGHT AND SHEARING OF WOOL SALSK SHEEP BREED." Sheep, goats, wool business, no. 2 (2023): 3–7. http://dx.doi.org/10.26897/2074-0840-2023-2-3-7.

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In a breeding herd of sheep of the Salsk breed of the same type according to the main characteristics of wool productivity, an increase in the intensity of selection by live weight, shearing of wool does not adversely aff ect the change in each of these characteristics, which makes it possible to increase the effectiveness of breeding for them due to the wider use of the tandem selection system. It is most effective for increasing the shearing of wool.

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González-Luna, S., L. Cordón, AAK Salama, A. Contreras-Jodar, and G. Caja. "Breed and shearing effects on milk composition and rennet-induced coagulation properties in dairy ewes." Small Ruminant Research 242 (January 1, 2025): 107419. https://doi.org/10.1016/j.smallrumres.2024.107419.

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This study explores the effect of shearing at different stages of the reproductive cycle on the milk composition and rennet-induced coagulation properties in two prominent dairy sheep breeds: Manchega (MN) and Lacaune (LC). The experiment involved three shearing treatments: unshorn (CO), shorn before breeding (SBB), and shorn at 100 days of pregnancy (S100). Results indicate significant breed-dependent differences in milk fat, protein, and cheese extract, with MN ewes consistently outperforming LC ewes in cheese yield and coagulation efficiency. Interestingly, while shearing timing had little

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Campbell, N. J., P. J. James, and B. J. Horton. "Effects of long wool insecticide treatments on lice numbers and wool damage on sheep." Animal Production Science 56, no. 1 (2016): 33. http://dx.doi.org/10.1071/an14426.

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Merino sheep infested with lice (Bovicola ovis) and with 8 months’ wool were hand jetted with a commercial spinosad formulation or treated with an α-cypermethrin backline product to examine the effect of long wool treatment on lice numbers and wool damage, relative to untreated controls. Mean lice numbers were reduced significantly (P < 0.05) by treatment and then remained relatively constant until shearing 20 weeks later. Treatment with either product resulted in significant improvements in mean clean and greasy wool cut, yield, staple length, both visually assessed and measured colour, an

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Fúró, Gabriella, Krisztina Varga, and István Csízi. "Comparison of the Fleece Production of two Extensive French Sheep Genotypes." Review on Agriculture and Rural Development 12, no. 1-2 (2023): 49–53. http://dx.doi.org/10.14232/rard.2023.1-2.49-53.

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Sheep fleece became problematic Europe-wide for many reasons, including its very low price. From an animal welfare standpoint, the thick fleece may cause discomfort for the sheep as it can be a welcoming environment for parasites and may cause heat stress during hot summer days; therefore, annual shearing is necessary for most sheep genotypes. Physiologically, growing fleece and maintaining normal body temperature to decrease heat stress distract resources from producing valuable products such as meat. Thus, we aimed to compare the fleece production of two meat-type sheep genotypes from South-

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Davis, G. P., Z. F. You, D. W. Crowe, et al. "Improvement of wool production and quality by the use of sheep rugs on Gansu Alpine Fine wool sheep in north-west China." Journal of Agricultural Science 123, no. 3 (1994): 371–77. http://dx.doi.org/10.1017/s0021859600070386.

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SUMMARYFine wool in China is characterized by severe dust contamination and substantial tip weathering. In an attempt to improve wool quality, synthetic rugs were fitted to ewes and a range of raw wool characteristics was monitored. Two trials were carried out in successive years: a pilot trial (June 1985 to June 1986) involving 100 ewes wearing rugs and 75 controls, and a main trial (June 1986 to June 1987) involving 250 ewes with rugs and 250 controls. The rugs were fitted to ewes after shearing and remained on until shearing the following year. Wool from ewes with rugs was significantly bet

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Aleksiev, Y. "The effect of spring shearing on milk yield and milk composition in Tsigai ewes." Biotehnologija u stocarstvu 27, no. 2 (2011): 241–49. http://dx.doi.org/10.2298/bah1102241a.

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Milk yield and milk composition responses to shearing were assessed in Tsigai ewes kept indoors. Sheep was offered 700g/head daily concentrate and chopped hay administered ad libitum and was milked twice daily - at 08:00 and at 18:00 h. Average for the two weeks post-shearing, daily milk yield dropped by 7.2 % due to the 8.2 and 2.2 %, respectively, reduction in the morning and in the afternoon milk yields. Fat and protein concentrations in the morning and in the afternoon milk on day 1, day 7 and day 14 after shearing surpassed vastly pre-shearing values whilst milk lactose concentration show

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Symonds, M. E., M. J. Bryant, and M. A. Lomax. "Metabolic adaptation during pregnancy in winter-shorn sheep." Journal of Agricultural Science 111, no. 1 (1988): 137–45. http://dx.doi.org/10.1017/s0021859600082939.

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SummaryThe effects of winter shearing on ewe live weight, body condition score (BCS) and the concentrations of glucose, non-esterified fatty acids (NEFA), 3-hydroxybutyrate, growth hormone (GH), cortisol, insulin and the thyroid hormones in plasma plus that of oxygen and carbon dioxide in jugular vein blood and packed cell volume (PCV) were measured at weekly intervals over the final 7 weeks of pregnancy in two groups of multiple-bearing shorn and unshorn pregnant ewes.Shorn ewes lost 47% more live weight than unshorn controls over the period from the day of being shorn to immediately after la

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Marai, I. F. M., M. S. Nowar, Layla B. Bahgat, and J. B. Owen. "Effect of docking and shearing on growth and carcass traits of fat-tailed Ossimi sheep." Journal of Agricultural Science 109, no. 3 (1987): 513–18. http://dx.doi.org/10.1017/s0021859600081727.

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SummaryThirty Ossimi lambs were used in an experiment to compare those whose tail was docked shortly after birth with controls. After weaning at 4 months of age the groups were further subdivided and two of the four groups closely shorn according to a 2 × 2 factorial design.Male lambs at 20 kg were subjected to intensive finishing until the age of 50 weeks and nine were then slaughtered to determine carcass characteristics.There was a trend for increased live-weight gain in the docked lambs in the preweaning stage (up to 16 weeks).This trend was also present, although not statistically signifi

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Šebek, L. B. J., and H. Evererts. "In situ rumen degradation of dry matter and crude protein in ewes and dairy cows." Animal Science 68, no. 4 (1999): 801–8. http://dx.doi.org/10.1017/s1357729800050827.

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AbstractComparative studies were performed on the in-situ rumen degradation rate (kd) and the in-situ rumen undegradable residue (U) of dry matter (DM) and crude protein (CP) in sheep and dairy cows. The effect of different treatmentsfor sheep were investigated together with the validity of using cow-based reference protein values of foods for sheep. The effect of different breeds (Texel ewes and crossbred ewes), dietary roughage: concentrate ratio and shearing (mild cold exposure) were investigated for sheep.The in-situ rumen incubations were performed in accordance with standard operational

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