soybeans/all beans (POISON)

[silkiechicken]

I'm not too sure on the whole tripsin thing, but I would think that soy based feeds containing the beans would be cooked up first or at least treated, else companies would be killing the animals that were eating the food that they would make the money off of.

The only thing I know is that when I disocciate cells, we use bovine trypsin, and soybean trypsin inhibitor. Beyond the labels on the containers, no idea how they got them, and know I need to not inhale any of the powders when making the solutions.

My mom makes soy milk once in a while by soaking the beans over night, blendering them all, boiling, and then straining for the "milk." With the invent of tofu in plastic packages in the store, and availibility of the milk in containers, she doesnt do it any more... she said back home in china, she'd make the pulverized soy beans by hand because there was no blender... or electricity at times.

By cooking things, you'd be better safe than sorry.

 

[patandchickens]

Doing a panicked search on lima beans and poisoning

I found the same as Angie -- it appears that raw/undercooked beans, lima beans unfortunately being among the worst offenders, have trypsin inhibitors. I think the earlier-mentioned website just had a pervasive typo ('inhibitor' fell off

)

Angie, I really really sure hope you are right. I *require* you to be right. No pressure, of course <g>

Am going to go add a comment on the treats chart feedback thread about this, b/c I may not be the only one who did not sufficiently equate 'dry' with 'raw or undercooked'.

Thank you for bringing this up, panner123,

Pat, with fingers and toes crossed for lil' Marigold and Maryanne and their lima bean breakfasts

 

[Chickadee28]

Does this include bean sprouts? I just purchased a sprouting kit to sprout beans for the chickens, is this not a good idea?

 

[Frozen Feathers]

"While mung bean sprouts may be eaten raw, soy bean sprouts must be cooked, because they contain a trypsin inhibitor which impedes action of the enzyme trypsin, secreted by the pancreas for the digestion of protein and maintenance of normal growth."
From HERE .

 

[Chickadee28]

Ok, so I will go ahead and sprout, just no soy beans. I don't think they were in the kit that I got anyway. Thanks for posting the info.

 

[Churkenduse]

I have been sprouting beans for years and now do it for my girls..I do lentils and my gilrs love them, they are perfectly sfe as well as mung beans but I thingk the lentils grow at a much faster rate/ Mung beans are supposed to be weighted and I don't feel like doing that.

Also they are very good for us!!!

btw: hooligan I sent you info on sprouts and soy milk

 

[digitS']

Regarding soymeal in commercial feeds: The very mechanical action of the extrusion of pellets, raises the temperature of feed. Moreover, feeds are often heated to pasteurization temperatures prior to extrusion.

It may be that all feeds using soy are heat-processed and I believe that to be the case.

In typical soybean processing, dehulled soybeans are crushed and solvent extraction removes the soybean oil. The remaining meal is used primarily as an animal feed.

Here's some information on soybean meal quality and antinutritional factors from the University of Georgia, Department of Poultry Science.

Steve

 

[hooligan]

digits I knew you'd be on here with that info!

 

[Rosalind]

Definitely a trypsin inhibitor.

If you are trying to grow bean plants from tissue culture, you have to use EDTA solution to dissociate cells, whereas in mammalian cells you would use trypsin.

Lab tech'ed as an undergrad for a soybean researcher.

I wonder, if you fed the afflicted birds meat tenderizer or fresh papaya (sources of pepsin, another protease), would that rescue them? It doesn't cleave in the same places as trypsin, but maybe it would digest the proteins enough to get them to pass the undigested beans?

 

[seedcorn]

raw soybeans are not a good feed source but I can't imagine how many they would have to eat to die of protein difiencey (spelling bad). Raw soybeans are rather bitter, can't imagine they would eat that many unless they were starved to it or were ground into feed.

For those that want to make their own soymilk. It's a special soybean (clear hilium variety). Each variety has it's own flavor. They sell machines that make it easy to make. You can't use just regular "soybeans".