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AB 2014-1

AB 2014 pp 11-16 Poultry Judging

QuestionAnswer
How do you judge the interior quality of eggs? candling
What quality is most important to determine the grade of an egg? the interior quality is most important although there are other factors to help determine the egg grade
What are the different egg grades? AA, A, B, Inedible
Each egg is graded on its individual merits of quality according to ______? United States Department of Agriculture (USDA)
What knowledge is essential to understanding candling and grading? knowledge of the parts of the egg
How do you candle eggs? hold the egg up to the light in a slanting position
What 3 things can you usually see when candling eggs? air cell, yolk, and white
When candling, how can you cause the inside to the egg to whirl? by turning your wrist quickly
Why might you want to make the inside of the whirl when candling? tells you a great deal about the yolk and white.
The air cell is nearly always in the large end of the egg therefore, ____ end next to the candling light? large
When learning how to candle, what is a helpful thing to do? you will find it helpful to break out and observe and egg contents you are in doubt about.
What are 3 things you should consider when grading eggs? air cell depth, yolk outline, & albumen quality
What are the interior quality factors of an A egg for the air cell? Air cell: 3/16" or less in depth
What are the interior quality factors of an B egg for the air cell? Air cell: more than 3/16" in depth
What are the interior quality factors of an inedible egg for the air cell? Air cell: doesn't apply
What is the depth of the air cell? the distance from its top to its bottom when the egg is held with the air cell up
what happens to the air cell as the egg ages? evaporation takes place & the air cell becomes larger & the egg is downgraded
What is the air cell like in a fresh egg? the air cell is small, not more than 1/8" deep
What are some characteristics of a fresh yolk? a high-quality egg will be surrounded by a rather dense layer of albumen or white so it only moves slightly way from the center of the egg when its twirled before the candler so, the yolk outline is only slightly defined or partially visible.
What happens to the yolk as the egg ages or deteriorates in quality? albumen thins & the yolk tends to move more freely & more closely approaches the shell & the yolk becomes more visible when candled
how does the character and condition of the albumen determined? it is determined largely on how the behavior of the yolk of the egg is when it is candled.if the yolk retains its position in the center when the egg is twirled, the white is usually firm and think.
For blood spots in eggs, how much of a blood/meat spot classifies it as inedible? 1/8 inch in diameter
Should very small pinpoint spots be considered in judging contests? no
What should contestants not confuse blood spots with? chalazae
The string of the albumen helps... hold the yolk in the center of the egg.it may be prominent in some eggs
how do you distinguish a blood spot from a chazalae? by a bright area of refracted light that accompanies the darker shadow of the chazalae
What are 3 factors that will not be consitered in interior quality when candling? 1. loose bubbly or out of position air cell 2. exterior stains or dirt 3. faulty eggshell type or texture
What are the interior quality factors of an AA egg of the air cell? 1/8" or less in depth
What are the interior quality factors of an AA egg of the white? White: clear may be reasonably firm
What are the interior quality factors of an AA egg of the yolk? Yolk: outline slightly defined
What are the interior quality factors of an AA egg of the spots? Spots: None
What are the interior quality factors of an A egg for the white? White: clear may be reasonably firm
What are the interior quality factors of an A egg for the yolk? Yolk: outline may be fairly well defined
What are the interior quality factors of an A egg for the spots? Spots: none
What are the interior quality factors of an B egg for the white? White: clear may be weak and watery
What are the interior quality factors of an B egg for the yolk? Yolk: Outline clearly visible
What are the interior quality factors of an B egg for the spots? spots: blood or meat spots aggregating not more than 1/8" in diameter
What are the interior quality factors of an inedible egg for the white? white: doesn't apply
What are the interior quality factors of an inedible egg for the yolk? yolk: doesn't apply
What are the interior quality factors of an inedible egg for the spots? Spots: blood or meat spots aggregating more than 1/8" in diameter
Created by: AlesiaMoore