Freebase(0.00 / 0 votes)Rate this definition: Ibid. Ibid. is the term used to provide an endnote or footnote citation or reference for a source that was cited in the preceding endnote or footnote. This is similar in meaning to idem, abbreviated Id., which is commonly used in legal citation. To find the ibid. source, one must look at the reference preceding it. Anagrams for ibid. Â»
Fertilization and Embryo Development. Following ovulation, the egg is capable of fertilization for only 12 to 24 hours. Contact between the egg and sperm is random. Once the egg arrives at a specific portion of the tube, called the ampullar-isthmic junction, it rests for another thirty hours. Fertilization â sperm union with the egg â occurs in this portion of the tube. The fertilized egg then begins a rapid descent to the uterus.
Candling fertile chicken eggs during incubation. Once fertilized chicken eggs have been under a brooding hen or in an incubator for a period of about three or four days, you can candle the eggs to see if they've started developing.o, how long does it take for fertilized chicken eggs to hatch? The answer to that is 21 days exactly, although you need to bear in mind that this can vary, depending on a number of circumstances.