1.You can consider
amino acid as one of the raw materials first.
2.
Combining with local resource, confirm the raw materials varieties within 10.
3.
When select protein material, you can take lysine and methionine unit prices as
purchasing standard, but not the unit price of protein.
4.
Don't use soybean meal or sesame meal with burnt appearance and smell, for lots
of lysine is destroyed.
5.
Fish meal is the main raw material of animal protein. You must analyze its
amino acid before using.
6.
Avoid using meat meal in hot seasons. The fat is easy to be oxidized and cause
liver disease.
7.
Silkworm chrysalises are easy to be oxidized for its high oil content. Test
their freshness before purchase.
8.
Blood meal is suitable for extrusion and spray drying technology for its low
digestibility.
9.
Wheat is better than wheat middling, for it can avoid adulteration and ensure
the freshness.
10.
Use zeolite
powder, not stone powder.
11.
Choose bean oil, rapeseed oil, edible lard or chicken oil for freshwater fish
feed formula. Don't choose fish oil.
12.
Feather meal processed by good hydrolysis process can be added into the
formula, but not exceed 3%.
13. If
choose outsourcing premix, check carefully.
14.
Amino acid composition coconut cake and grape cake is not so good, you'd better
not use.
15.
Using microcapsule amino acid is a trend in aquafeed processing. It's the key
of the production effect that whether the amino acid can tolerate high
temperature tempering.
16.
Don't purchase or add table salt.
17.
The blood-cell protein must be all-broken, or it has no value.
18.
Notice the aflatoxin and other hygiene indexes when purchase peanut meal.
