Aquatic feed choline added or not discussed!

Choline is added or not to consider the following points: 1. Fish have a certain demand for choline, which can provide methyl donor and prevent fatty liver and other functions. 2, if there are other similar additives, such as methionine, betaine, carnitine and other substances can be adjusted according to the situation or completely replaced. 3. The choline content in the basic formula raw materials can be considered, for example, the choline content in rapeseed meal is as high as 6700; but now there is little data about the utilization rate of choline in raw materials, and only spotted fork tail is above 60 for several kinds of raw materials. animal is higher than plant, but unfortunately there is no rapeseed meal data. Wdy in 2009-4-7 17:37 to add the following do not know whether it is correct, active discussion ah wdy at 2009-4-8 09:20 to add the following how do you have any opinion? Is choline cheap now, can you add it at will? -- according to the amount of fat added in the feed and the health status of the fish,-- the amount of feed raw materials is not enough, choline should be added separately. Choline needs to be added separately.