
Originally Posted by
boilermaker
From a financial standpoint, egg producers have a much more profiitable business selling their product either as a whole product to consumers or as an ingredient (bakeries, food companies, etc.), which offer more stable markets and steady demand as well. You would be suprised at how many products egg is actually in. The more processing involved in the final product, the less money the original producer makes from the end product. The potato is another fine example of this.
A cow can produce around 53 lbs. of milk per day, about 6.2 gallons. Only around 13% of cow's milk is is in a gallon of milk.
A chicken can lay an egg every 26 hours on average.
You can begin to see that supply and demand plays a significant role in what is used to make supplemental products. There is an overabundance of cow's milk. This is especially true when school is not in session. That plays a huge role in the consumption of milk. Conversely, egg producers sell whole products at a greater profit without as much raw surpluss of their product.
Thus, it is a more expensive form of protein to use in supplement making. Plus the reasons about body usage that Emma-Leigh stated.