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Typically, white-faced ewes and dogs are more fertile than black-faced ewes. A range of zero to the mid 20s in terms of viable embryos recovered from a flush procedure can be expected. Over the course of a year, the average is 6.8 transferable eggs per donor with a 75% conception rate for those eggs. [15]
Originally, the hen presumably laid one clutch, became broody, and incubated the eggs. Selective breeding over the centuries has produced hens that lay more eggs than they can hatch. Some of this progress was ancient, but most occurred after 1900. In 1900, average egg production was 83 eggs per hen per year. In 2000, it was well over 300.
Ostrich eggs are the largest of all eggs, [4] though they are actually the smallest eggs relative to the size of the adult bird — on average they are 15 cm (5.9 in) long, 13 cm (5.1 in) wide, and weigh 1.4 kilograms (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [5]
We still use so many eggs." ... That's a more than 60% increase from the $2.51 it cost a year ago and 160% more than the $1.41 consumers paid for the same carton in 2019, ...
Holiday baking and cold-weather stockpiling also increased demand, and prices to boot, with a dozen grade-A large eggs costing $4.15 in December, up from $2.51 the year before (a 36% increase).
Americans can continue to expect high prices for eggs this year, new estimates show, due to the ongoing avian flu outbreak and inflation. Egg prices are estimated to increase about 20% in 2025 ...
Chickens farmed primarily for eggs are called layer hens. The UK alone consumes more than 34 million eggs per day. [85] Hens of some breeds can produce over 300 eggs per year; the highest authenticated rate of egg laying is 371 eggs in 364 days. [86]
At a Target in Chicago on Monday, a dozen large conventional eggs cost $4.49 but a dozen large cage-free eggs were selling for $6.19. Why is the virus so hard to control?