Which of the following is NOT a characteristic of brown-shelled eggs according to the information provided?

Brown-shelled eggs are often thought to be more nutritious than white-shelled eggs, but this is a misconception. The nutritional value of eggs is primarily determined by the hen's diet rather than the color of the shell. Therefore, it's not accurate to say that brown-shelled eggs are inherently more nutritious.

Conversely, characteristics like longer shelf life, ease of candling, and higher hatchability rates can vary based on specific conditions and practices, but they are not generally associated with shell color in the same way. The shell color itself does not affect these aspects of egg quality or viability. Understanding these distinctions is key in poultry judging and nutritional assessment, as it helps clarify common myths surrounding egg production and quality.