| 摘要 |
<p>A device and a method for the prolonged administration of dosages of a therapeutic, additive, or nutrient substance into the reticulorumen of a ruminant. The device comprises a body (10) having an interior chamber (12), at least one end (14) of said chamber being open to the exterior of said body, said body made from a material which maintains its integrity in the reticulorumen environment, a plurality of degradable, such as cellulosic, partitions (18) within said interior chamber connected to or fitting closely against the inner walls of said body, said partitions dividing said interior chamber into a series of compartments (22), each compartment containing a dosage of the therapeutic, additive or nutrient substance, said partitions arranged in an order to be degraded sequentially upon exposure to the reticulorumen environment thereby sequentially releasing the dosages of the substance into the reticulorumen, and means to retain the device within the reticulorumen, such as a steel ball (24), or a metal shell (30).</p> |
