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Improving digestability (116 posts / 17,734 views)
FrankDownUnder
Posts: 208
Post #91 13 Nov 2020 08:02
0
In reply to Post #90
Have i missed something- what's the missing 10% ?
mistercarp
Posts: 1,307
Post #92 13 Nov 2020 08:09
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In reply to Post #91
Sharp! Those 10 percent is for the label (spices, cheese powder or such things) and I have to think/test about those ones. Haven't figured it out.
Ynnek
Posts: 890
Post #93 13 Nov 2020 08:57
0
In reply to Post #90
Have a look if you can get hold of the spray dried version of chicken meal.
I really like to use it in combination with predigested fishmeal!
mistercarp
Posts: 1,307
Post #94 13 Nov 2020 09:03
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In reply to Post #93
Hi Kenny,

I have this one: https://www.feedstim.com/protein-base/poultry-protein-meal-159.html

This one is spray dried. Is that better digestable?
Smurf Smurf
Posts: 3,505
Post #95 13 Nov 2020 09:47
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When reading any data on digestibility do not be mislead by what you read. They often talk about 'In Vitro' and 'pepsin' digestibility, both of these methods are based around how ruminants (cows) or we can digest a product...fish are completely different.

It is possible to find data on fish digestibility but you will have to look harder, normally into various science papers . Certainly any bait ingredient company is just wasting time publishing 'in vitro' or 'pepsin' figures without any real data to say how this effects a fish!

In theory we could make a bait that has a very high protein content that has high digestibility when measured with these methods but is totally un-digestible for a carp. Admittedly it would be hard to do but I recon I could have a good stab at it
mistercarp
Posts: 1,307
Post #96 13 Nov 2020 10:10
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In reply to Post #95
Hi Peter,

I found this one: link

In which they state: "Protein in fish meal (83.8%) and soybean meal (69.8%) were significantly more digestible than that of poultry meal (47.2%). Energy digestibility tests gave the following results: fish meal 93.4%, soybean meal 74.7% and poultry meal 63.9%"

Ynnek
Posts: 890
Post #97 13 Nov 2020 10:50
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In reply to Post #94
Yes, it's a good one.

Concerning digestibility i wouldn't worry if you use around 15%.
It all depends on the other ingredients of the mix.
Mr-Bean-Laden Mr-Bean-Laden
Posts: 2,243
Post #98 13 Nov 2020 11:37
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FLAA issues surely assume the fish eat only your bait. This may be true in a fish tank but in a lake they eat a wide variety of very different carp baits and naturals on a daily basis and so the FLAA issue has to be greatly diminished.
Smurf Smurf
Posts: 3,505
Post #99 13 Nov 2020 11:51
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In reply to Post #96
As your link shows the data is out there if you look for it
Smurf Smurf
Posts: 3,505
Post #100 13 Nov 2020 12:00
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In reply to Post #98
Yes an no I total understand your point but my reply #27 still stands.

I want to feel I am feeding them a balanced diet. I treat my children the same but they still eat 'other' stuff at school so, based on what you are saying, should I not worry about the quality of what I feed them at home?

Another way of looking at it is that they (the fish, not my children!) spend x amount of energy feeding each day. If they spend some of that energy eating a non-HNV (HNV and FLAA go hand in hand) bait we have chucked in they are wasting that energy and will not benefit from the food. Yes they will certainly survive but I want more than that for the fish I target. I want them to thrive not just survive
mistercarp
Posts: 1,307
Post #101 13 Nov 2020 12:15
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In reply to Post #99
Hi Peter, you used poultry meal in your BM2 mix. May I conclude that you don't think the lesser digestability is a problem in our baits (if they are a mix with other ingredients)?
Smurf Smurf
Posts: 3,505
Post #102 13 Nov 2020 12:23
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In reply to Post #101
I never fully tested the BM2 mix, it was 'work in progress' when I packed it all in. In theory though it still had 20% fishmeal so the poultry meal only need to be part utilised.

For the last 10 years I have used the same mix based on the BM1.
mistercarp
Posts: 1,307
Post #103 13 Nov 2020 12:25
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In reply to Post #102
I currently have a very nice fishmeal mix and a bird/nut/milk mix. I also wanted to add a good meat meal mix, but now I wonder why. If I have both mixes that work well, why? Lol

Think I will let this idea go.

Thanks!
Smurf Smurf
Posts: 3,505
Post #104 13 Nov 2020 12:31
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In reply to Post #103
If you have one good mix then just use it....like I say I have been on the same bait for 10 years now

With spare time due to car racing being off this year I am playing around with a new mix but more out of interest than need. I am still making and using 1-2kg a week of the old mix
mistercarp
Posts: 1,307
Post #105 13 Nov 2020 12:34
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In reply to Post #104
Nice! I also will keep my eye on new ingredients, but leave the poultry meals for now.
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