refers to the change in total revenue that results from producing and marketing one additional unit of the product
Dolly is the name of a sheep that has the honor of being the first mammal to be cloned by a group of scientists in England. Dolly was born July 5th, 1997 and she passed away in 2003. She lived for 6 and a half years, as a normal, active ewe.
Editorial Information. Sheep scab is caused by the host-specific mite Psoroptes ovis. Sheep scab can be transmitted by direct contact when sheep are gathered and held tightly together such as during sales or contact with infested scab material on fenceposts or vehicles used for animal transport etc.. Sheep scab mites can survive off the sheep for up to 17 days, survival being longest when the weather is cold and damp. 4. The only treatments that guarantee persistence for longer than 17 days are diazinon (organophosphate) and moxidectin injection.