Stroke is an abrupt interruption of constant blood flow to the brain that causes loss of neurological function. The interruption of blood flow can be caused by a blockage, leading to the more common ischemic stroke, or by bleeding in the brain, leading to the more deadly hemorrhagic stroke.
Most ducks do not start laying eggs until they are between 9-11 months old. Depending on the breed they can lay year round. A duck will lay an egg a day until they have a clutch, between 8-15 eggs and then the mother will sit on them.
The average number of eggs a duck can lay each year depends largely on the breed of duck. As with other types of poultry, some duck breeds are raised for meat, some for eggs and some to produce a balance of both. Good egg-laying duck breeds can out-lay chickens. The laying season for ducks is usually about 35 to 45 weeks long each year. Egg Production The runner duck, the Cayuga, the blue Swedish and the buff duck are among the top layer ducks, averaging up to 180 eggs per year.