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Too much wool prevents a sheep from being able to regulate its body temperature. The wool, especially around the rear end, can become covered in feces and soaked in urine. Not only is this uncomfortable but it is also unhygienic, and it can attract flies and other pests. Flystrike can lead to infection which, in turn, can make sheep very ill and cause infections. Some sheep have so much wool that it can actually impede their movement. If the wool is allowed to grow down to the legs it can make general movement difficult, and a long fleece poses the very real risk of getting caught on fences and preventing the sheep from getting through tight spots.
They can prevent injury and stress to the sheep, and they will work efficiently without you having to take regular breaks to let the motor cool down. The following are some of the most important features to look for when buying electric sheep clippers. Motor Power Most good-quality shearers are powered by an electric motor.
This does mean that they have a power cable you need to work with, but it also means a more efficient motor than is offered with cordless, battery devices. Motor power varies a little but ranges from the very low-powered watt motor to powerful watt or even bigger motors.
Generally speaking, a more powerful motor will run at lower temperatures, therefore reducing the risk of overheating. It will also operate at higher speeds, and it will make it easier to cut through thick wool without facing any cutting issues or difficulties. Image Credit: Kitti Kulapanpaichit, Shutterstock Speed Speed is another important factor and is measured in revolutions per minute. High power is best used when cutting an entire fleece but is also best used by experienced shearers because mistakes are easier to make and more difficult to rectify at these speeds.
Novice shearers are advised to start at a lower speed before moving up to increased rotations. Variable Speed A small number of modern shears are fixed speed, which means that, for example, they will operate at a constant 2,RPM speed. The whole shearer has been designed and set up for this speed, which means it should deliver consistent power and efficient results at speed. It is suitable for working through dozens of sheep and is ideal in the hands of an experienced shearer.
It may not be suitable for precision work. Other shearers have a variable speed setting allowing you to choose between up to six different speed settings: ideal for those starting out because it enables them to practice at lower speeds before making the step up. These adjustable shears are also beneficial because they can be used at high speed to cut most of the fleece and then turned down to finish sensitive spots.
Choosing A Shearer When choosing the right electric shearer for your cutting needs, consider the following factors to ensure you get the best device for you. A lower power motor might be suitable because there is less danger of overheating. If you have dozens or hundreds of sheep to shear, you will want to minimize the time on each sheep while still ensuring a good job on every one. You should also consider the quality of the blades that come with the shearer because poor-quality blades will dull quickly.
Are You An Experienced Shearer? The acute stress that occurs during the shearing is not only due to the shearing, but also from the preparation procedures such as capture, separation, immobilization and tying required for the shearing. However, this traditional practice also means harvesting the fleece which provides protection against the external factors. In some of the studies performed in this field, it was reported that shearing increased the sensitivity of the animals to thermal stress [ 8 , 10 — 15 ], in others [ 2 , 16 , 17 ], that the removal of fleece did not have a significant effect on the physiology of the sheep or that sheep were becoming more resistant to thermal stress after shearing.
However, fleece properties of sheep have a very important role in the response of sheep to thermal stress [ 18 ]. From this point of view, this study was aimed to determine both effect of shearing and the reactions against climatic factors after shearing on some physiological and hormonal parameters in young Akkaraman ewes that not previously been sheared.
The study was conducted on 1,5 years old 39 non-pregnant Akkaraman ewes at the beginning of the experiment. The 39 ewes were chosen randomly from the flock belonging to the Erciyes University. During 15 days prior to starting of the study, all ewes were identified and subjected to internal and external parasite controls.
The shearing was performed via sheep shearing machine Xpert , Heiniger AG, Herzogenbuchsee, Switzerland am and pm on the same day, without any interruption. All the ewes were clinically healthy. During the experimental period, the ewes grazed on natural pasture between — am and between — pm and they were housed in shaded pens 2 m2 per sheep in the remaining time and natural light from windows and a door could pass through to the pens. The ewes were fed with g concentrated commercial feed and g alfalfa hay per head as a supplement in every day during this period and they were not milking.
Fresh water was always available to the ewes. The study was conducted within standard ethical norms. Body weight BW , pulse rate PR , respiratory rate RR , and rectal temperatures RT of each ewe were determined on the same times pm and pm of same days as the blood collection days. The minimum detectable concentrations of the kits were 0. Climatic values Climatic values on the location of the farm where the experiment was carried out, were obtained from Turkish State Meteorological Service [ 19 ] in order to estimate the severity of heat stress during the experimental period.
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