. Cyclopedia of farm animals. Domestic animals; Animal products. SHEEP SHEEP 605 tus s. minutis), and another stage in the water before they are capable of infesting sheep. Damp, swampy pastures and stagnant pools of water fur- nish the conditions favorable to the development of the parasites. Lambs and yearlings and sheep of feeble consti- tution suffer most readily. The symptoms of the disease do not appear until the damage to the liver is extensive—about one and one-half to two months after infection. Then, there is a rapid loss of condition and weakness ; the wool becomes dry and may drop
. Cyclopedia of farm animals. Domestic animals; Animal products. SHEEP SHEEP 605 tus s. minutis), and another stage in the water before they are capable of infesting sheep. Damp, swampy pastures and stagnant pools of water fur- nish the conditions favorable to the development of the parasites. Lambs and yearlings and sheep of feeble consti- tution suffer most readily. The symptoms of the disease do not appear until the damage to the liver is extensive—about one and one-half to two months after infection. Then, there is a rapid loss of condition and weakness ; the wool becomes dry and may drop off ; the eyes and lips become blood- less and puffy swellings may appear around the eyelids, under the jaw and along the brisket; the appetite is poor, or unusual substances may be eaten; the bowels are irregular, constipation alternating with diarrhoea. Treatment.—Preventive measures are of more value in combating the disease than medicinal treatment, as the flukes are so located that drugs cannot operate on them with sufficient effect, and, in those sheep showing symptoms of infestation, the changes in the liver are too extensive to be repaired by drugs. The sheep should be removed to high, dry pastures, the sick being separated from the well; they should be given nourishing food with a plentiful supply of salt. Infested past- ures and pools should be drained and should not be used by cattle or sheep for a time. As snails are essential to the development of the flukes, their destruction will assist in the eradication of the parasites. Frogs, toads and carp have been used for this purpose with good results. The introduc- tion of carp into the Willamette and Columbia rivers was followed by a great decrease in fluke disease in sheep pasturing in slough lands along the lower parts of those streams. Gid, sturdy, staggers, turn-sick (Fig. 613). The most prominent and characteristic symp- toms of this disease are the peculiar, unconscious and uncontrollable movements of the vic
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Keywords: ., bookauthorbaileylh, bookcentury1900, bookdecade1920, bookyear1922
