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SHEEP-fed-barely-sprouting-fodders, page : 110
Sheep ticks are blood suckers and can be found anywhere on a sheep. To have access to their "dinner" they puncture the sheep's skin, these punctures cause the development of firm, dark nodules and this damages the sheepskin and reduces its value.
Ticks are a nuisance to sheep, they irritate and itch causing the sheep to rub, scratch and damage their wool. Some sheep will bite themselves in an effort to relieve their suffering and have been known to become habitual wool chewers, the wool can then become impacted in the rumen and cause a problem.
Ticks are known to cause weight loss on account of the loss of blood and subsequent anemia. Their feces discolor wool that is difficult to remove and therefore detract from its value.
Ticks can be easily eradicated through systematic treatment. A mature tick lays only one egg a week, these eggshells become attached to the wool about half to 1 inch (1.3 – 2.5 cm) from the skin, and most are removed when shearing (clipping of the wool). Newly hatched ticks die within an hour because there is no supply of blood to feed them, whereas a mature tick can survive for 2 to 4 days without feeding.
For this to be effective, the entire flock must be treated for ticks at the same time, if you don't, then the untreated sheep will pass their ticks back to those that have been treated.
Inspect a new lamb or sheep before introducing it to your flock, and treat it even if you can find just one tick. Don't make the mistake of leaving any of your sheep with ticks – each sheep must be treated in one season.
Lice:
Lice are most probably the second most troublesome external parasite. There are lice that bite and others that suck.
Lice attach their eggs to the individual wool fibers and these hatch into the nymph stage 1 to 2 weeks later. Unlike other parasites, lice are most active during the winter months.
Ticks are a nuisance to sheep, they irritate and itch causing the sheep to rub, scratch and damage their wool. Some sheep will bite themselves in an effort to relieve their suffering and have been known to become habitual wool chewers, the wool can then become impacted in the rumen and cause a problem.
Ticks are known to cause weight loss on account of the loss of blood and subsequent anemia. Their feces discolor wool that is difficult to remove and therefore detract from its value.
Ticks can be easily eradicated through systematic treatment. A mature tick lays only one egg a week, these eggshells become attached to the wool about half to 1 inch (1.3 – 2.5 cm) from the skin, and most are removed when shearing (clipping of the wool). Newly hatched ticks die within an hour because there is no supply of blood to feed them, whereas a mature tick can survive for 2 to 4 days without feeding.
For this to be effective, the entire flock must be treated for ticks at the same time, if you don't, then the untreated sheep will pass their ticks back to those that have been treated.
Inspect a new lamb or sheep before introducing it to your flock, and treat it even if you can find just one tick. Don't make the mistake of leaving any of your sheep with ticks – each sheep must be treated in one season.
Lice:
Lice are most probably the second most troublesome external parasite. There are lice that bite and others that suck.
Lice attach their eggs to the individual wool fibers and these hatch into the nymph stage 1 to 2 weeks later. Unlike other parasites, lice are most active during the winter months.