AIMS - Manual for the Determination of Egg Fertilisation in Penaeus Monodon - Section III - Distinguishing Fertilised and Unfertilised Eggs

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Manual for the Determination
of Egg Fertility in Penaeus monodon

SECTION III

DISTINGUISHING FERTILISED
AND UNFERTILISED EGGS

DIFFICULTIES 5

Developmental Abnormalities 3:

Figure 3.8a shows eggs that have ruptured egg membranes with leakage of yolk. These eggs succumb to microbial attack. These eggs usually have high bacterial contamination. Ciliates can often be seen within the outer shell membrane feeding on the yolk. Figure 3.8a shows examples of eggs which are in the process of breaking down, possibly due to bacterial attack.

3.8a

T H E E N D

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