A hen lays an egg weighing 152 grams

A hen lays an egg weighing 152 grams
A hen lays an egg weighing 152 grams

An Ontario couple, owners of a chicken coop with 60 hens, discovered that one of their hens laid a large egg weighing 152 grams.

“I knew there was something when I saw the scale on the counter,” Melinda Groen told CTV News, stunned after the discovery made by her breeder husband.

According to the Canadian Food Inspection Agency (CFIA) criteria, an egg is considered large if it weighs approximately 56 grams.

The farmer solved the plot when she discovered a second, fully intact egg inside, a rare phenomenon called counterperistaltic contraction.

More clearly stated, this occurs when a formed egg moves backwards through the hen’s oviduct to become embedded in a second egg early in its formation.

In the past, this couple of former milk producers from northern Ontario had already seen one of their hens lay a large egg weighing 121 grams, according to CTV.

Mme Groen recalls a story about a family in Leamington, Ontario, who boasted a 175-gram egg in their chicken coop.

But this is not the record in the Ontario province, where in 2017 a breeder saw his hen lay a 180 gram egg as big as a large apple.

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