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" The life of the embryo, from the time it leaves one sheep until it is found in another, is yet undiscovered. When present in considerable numbers in sheep it determines a disease which is not only detrimental to the value of the animal, but at times causes... "
The Animal Parasites of Sheep - Página 88
por United States. Bureau of Animal Industry - 1890 - 222 páginas
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Annual report of the Bureau of Animal Industry. v. 4/5, 1887/88, Volúmenes4-5

1889 - 596 páginas
...possibly ten, to attain an adult size. The ova or embryos are continually passed from the sheep to the {ground throughout the year. The life of the embryo,...the animal, but at times causes the death of large mimbers. No medicinal remedies can be recommended which will assuredly remove the parasite from the...
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Annual Report: 1888-93, Volúmenes1-6

University of Rhode Island. Agricultural Experiment Station - 1889 - 930 páginas
...least six months to attain adult size. The ova or embryos are continually passed from the sheep to the ground throughout the year. The life of the embryo from the time it leaves one sheep until found in another, is yet undiscovered. When present in considerable numbers in sheep, it determines...
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Annual Report of the Director of the Agricultural Station ...

Rhode Island Agricultural Experiment Station - 1889 - 918 páginas
...least six months to attain adult size. The ova or embryos are continually passed from the sheep to the ground throughout the year. The life of the embryo from the time it leaves one sheep until found in another, is yet undiscovered. When present in considerable mimbers in sheep, it determines...
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Report, Volúmenes4-5

United States. Bureau of Animal Industry - 1889 - 578 páginas
...possibly ten, to attain an adult size. The ova or embryos are continually passed from the sheep to the ground throughout the year. The life of the embryo, from the time it leaves one sneep until it is found in another, is yet undiscovered. When present in considerable numbers in sheep...
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