If you kill a Murray cod, you can tell if they are male or female by cutting them open and by looking at their gonads, which are their reproductive organs. However, this is a very bad idea considering how rare Murray cod are. If you are not prepared to kill a Murray cod, you will not be able to tell if it is male or female, either by size or appearance, for most of the year. (Male and female Murray cod look the same and grow to basically the same size.) However, for several months in late winter/early spring female Murray cod can be recognised because their belly region will be noticeably swollen with the large eggs they are carrying and their vent will be swollen and purple or red.
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The sex of Murray cod is determined by examining their reproductive organs. In males, testes are present while in females, ovaries are found. The examination is usually conducted by a trained professional such as a fisheries biologist.
Murray cod can grow up to 1.8 meters (6 feet) in length and weigh over 100 kilograms (220 pounds), making them one of the largest freshwater fish in Australia. They typically reach maturity at around 4-5 years old.
Cod sperm and egg cells meet during fertilization, which occurs externally in the water. When the female releases her eggs, the male releases his sperm to fertilize them. The sperm swims towards the eggs and fertilizes them by fusing with the egg cell membrane, resulting in the formation of a fertilized egg.
In Shakespearean times a Cod Piece was an insert worn by men in their britches to imply that they were quite well endowed in the genital area. Put bluntly ... a male 'falsie.'
Zinc can be found in servings of cod. It can also be found in cod live oil.
Tripe does not come from salt cod. Tripe is the edible lining from the stomach of a cow, whereas salt cod is dried and salted cod fish. They are two different foods obtained from different sources.