In the normal course of events, two yolks appear in approximately 0.1% of eggs laid, or about one in every 1,000. So why are we lately hearing so much about those rare double yolk eggs? And what causes double yolk eggs in the first place? Causes of Double Yolkers A double yolk egg occurs while […]
An egg’s internal qualities cannot be determined by looking at the outside of the egg. Detecting such things as blood spots, double yolks, hairline cracks, and thin shells requires candling the eggs. Candling means examining the contents of an egg by placing it against a bright light. It’s called candling because the bright light was […]
The earliest documented instance of a “rooster” laying an egg occurred in Basel, Switzerland, in 1474. The “rooster” was sentenced to death for the “unnatural crime of laying an egg.” A similar event took place, again in Switzerland, in 1730. In the United States, in 1922 a brown Leghorn “rooster” in Madison, Wisconsin, began laying […]
Until the 1960s, no one was able to determine the function of a chicken’s cloacal bursa. That year, in an attempt to find out, Ohio State University graduate student Bruce Glick performed bursectomies on some chickens. But it didn’t seem to make any perceivable difference. Unintended Consequences Then a fellow graduate student, Timothy Chang, borrowed […]
Whether or not using more than one incubator makes sense depends on how much hatching you plan to do and how many different chicken breeds or poultry species you wish to hatch. Most incubators for home use are designed for batch hatching. Sometimes, though, you might not want to wait until the eggs hatch before […]
Most chicken keepers know that a hen will lay eggs whether or not a rooster is present. But a rooster is needed in order to get fertile eggs that will hatch. Less well known is that eggs can hatch without a rooster. Virgin Birth Virgin birth, or parthenogenesis, is the process whereby an unfertilized egg […]
Ringneck pheasants are traditionally raised to be released as game birds. But people have plenty of other reasons for raising ringneck pheasants. They are also raised for their excellent meat, tasty eggs, gorgeous feathers, or simply for their awesome beauty. Game Bird The ringneck pheasant is a native game bird in China. Since the late […]