Few surveillance systems however, are designed based on international livestock movement data, even though such data can provide information on the quantity and seasonality of livestock movements, the types of movement (for example flows from production of point of lay birds to laying units), the route the animals take and associated stopover or resting points.
Eggs per hen housed increased from 91 to 237 eggs, mainly as a result of increased survivability, but also the rate of lay per bird per day increased, primarily in the later generations.
At the end of the experiment at 18 weeks (126 days, just prior to entry into lay), the birds were visually examined and any birds that were blind, lame or completely paralyzed were identified as having MD.
During lay, all birds were fed a standard breeder diet and followed a standard growth pattern.
Every night, I lay down with bird books, reading about trips I could take, and then dreamed vividly of birds.
For brood parasites -- birds that lay eggs in other birds' nests -- the situation is different.
The dead bird lay in the dust.
The bird lay motionless most of the time, but occasionally twitched its head or flapped its wings.
Unlike red lentils, which fall apart in the cooking (so making them perfect for soups), brown and green varieties hold their shape, making them a very good base on which to lay a roast bird or to sit with sausages in a one-pot stew.
The smallest, downy bird lay on the red brick of our front steps.
