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Were the above studies done on fish in complete confinement where their entire diet was dependent on the supplied feed?

I would surmise the more dependent the fish are on eating only commercial feed, the higher the requirement of proper quality feed would be compared to feed being used as a supplement where a lot of natural food source was available.

Would that be a fair statement to make?


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Originally Posted By: snrub
Were the above studies done on fish in complete confinement where their entire diet was dependent on the supplied feed?

I would surmise the more dependent the fish are on eating only commercial feed, the higher the requirement of proper quality feed would be compared to feed being used as a supplement where a lot of natural food source was available.

Would that be a fair statement to make?


Snrub,

You and I are still on the same page.

Bill D.


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It would be extremely difficult to monitor and/or observe a fish' total diet in a more "natural" pond setting. Even more difficult long term since the most effective way to determine a natural diet is to either analyze fecal matter/urine, or cut it open and examine stomach/intestinal contents.



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Another good way to obtain contents of fish stomachs is various methods or types of flushing.
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1054&context=ncfwrustaff

Gastric lavage
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1054&context=ncfwrustaff

The lavage technique and diagram
http://www.nativefishlab.net/library/textpdf/13644.pdf

Foster, J. R. 1977. Pulsed gastric lavage: an efficient
method of removing the stomach contents of live
fish. Progressive Fish-Culturist 39:166–169.

Last edited by Bill Cody; 12/18/14 06:51 PM.

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Since this thread is about diet, I would like some thoughts on this scenario.

So you are at the river fishing next summer and you catch a few suckers, chubs, carp, etc. Is filleting out those "trash" fish, cutting them into pellet size chunks and feeding them to your pond fish a good idea or bad idea? Freeze those fish "pellets" for later use? Maybe dry them and hydrate them again before you use them as supplemental feed?


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Quote:
Is filleting out those "trash" fish, cutting them into pellet size chunks and feeding them to your pond fish a good idea or bad idea?

I see nothing basically wrong with doing this other than the extra effort that it requires to get the end product. Often fish are pellet trained by first using chopped fish or crushed krill (zooplankton) to get the fish used to eating sinking particles or chopped pieces of fish or sometimes other types of meat/fish. It might be more productive to instead of using outside the pond trash fish, use culled fish from the pond. Most all ponds need to have some fish removed to maintain the optimum balance of species for optimum growth based on one's goals. Some members here cull small BG, mildly inhibit their swimming ability, and hand feed them to the bass. Bass in the pond will quickly 'learn' the new feeding routine.

Last edited by Bill Cody; 02/23/15 11:30 AM.

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Hey, with a little pond like mine, it's not work. It's just fun and trying different things! 100% natural supplemental food. I will try all the above and let you guys know how it works out.

I know this is an unpopular approach here, but my bass will be used to control population of other species only. They will be harvested 14+ and restock or recruitment will maintain their population. With that said, my original YP will be allowed to grow to a ripe old age.

And no the bass harvested will not meet hot grease. They will be steamed with exotic Thai spices that compliment their delicate flavor!

Last edited by Bill D.; 12/18/14 08:28 PM.

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Originally Posted By: Bill D.
Hey, with a little pond like mine, it's not work. It's just fun and trying different things! 100% natural supplemental food. I will try all the above and let you guys know how it works out.

I know this is an unpopular approach here, but my bass will be used to control population of other species only. They will be harvested 14+ and restock or recruitment will maintain their population. With that said, my original YP will be allowed to grow to a ripe old age.

And no the bass harvested will not meet hot grease. They will be steamed with exotic Thai spices that compliment their delicate flavor!


Oh I don't know about that...I wouldn't consider using LMB in a sacrificial role intended solely to benefit another species, a totally unpopular or unheard of idea! wink


"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.
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Originally Posted By: sprkplug
Originally Posted By: Bill D.
Hey, with a little pond like mine, it's not work. It's just fun and trying different things! 100% natural supplemental food. I will try all the above and let you guys know how it works out.

I know this is an unpopular approach here, but my bass will be used to control population of other species only. They will be harvested 14+ and restock or recruitment will maintain their population. With that said, my original YP will be allowed to grow to a ripe old age.

And no the bass harvested will not meet hot grease. They will be steamed with exotic Thai spices that compliment their delicate flavor!
\\

Oh I don't know about that...I wouldn't consider using LMB in a sacrificial role intended solely to benefit another species, a totally unpopular or unheard of idea! wink


If you are ever in my neighborhood my friend, please stop by for Thai style bass!...Assuming we catch one!




Last edited by Bill D.; 12/18/14 09:12 PM.

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Sounds tasty neighbor!


"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.
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