Spore germination in use of
probiotics
From: Pablo Legarda sffarming@yahoo.com
To: shrimp@yahoogroups.com
Sent: 12 October 2004
I wonder if any of the probiotics experts could tell
whether adding
spores to the feed will give enough time for spore germination,
considering feeding will start from time 0 to 3 hours after
feed time. How many spores per gram of feed are recommended?
Does anybody know dying rate of spores? Are these strains isolated
from aquaculture or similar environments?
e-mail: sffarming@yahoo.com
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comments 1:
Many of our customers simply germinate the spores on
the day of use,
and then soak them into the pellets (often in a concrete mixer) before
feeding-out; you can add as much as you like, up to the point that the
pellets stick together when squeezed.
Bacillus are very hardy and are typically isolated from aquatic
environments or soil; their origin isn't as important as their
effectiveness - the main point is to choose strains that have
been proven to be effective in shrimp ponds and hatcheries.
Kevin Healey
e-mail: khealey@iahp.com.au
www.iahp.com.au
We use Kevin's probiotics in our hatchery. Our
hatchery is for our own
farm: we do not sell the fry. I am very keen to get the best possible
quality fry. I do not use antibiotics or any other type of chemical except
chlorine and fertilisers for our chaeto. My finding is quite clear: if
we use the probiotics, PLUS molasses, we do not get luminescence. My
thoughts are that this means that the switch (or quorum sensing
ability) of the vibrios may be disrupted by the additives. We have tried
various combos with molasses only, with bugs only etc: but only the bugs
PLUS molasses give the results I want. I will keep using the product
because it gives me results.
Adam Body
PO Box 39346
Winnellie, NT 0821
Australia
Telephone: 08 89886861
Fax: 08 89886859
e-mail: a.body@bigpond.com
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comments 2:
This email message is a notification to let you know
that a file has been uploaded to the Files area of the shrimp group.
File: Prolarva Probiotic 500g
Please let us know if you would be interested to have more information about
our product. Thank you very much and we look forward to hear from you.
Hugo Brito.
Shrimp Feeder, Inc.
e-mail: nolimit@gate.net
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In your hatchery, what kind of shrimp do you produce?
Vannamei, monodon, or other?
Secondly, can you enlighten us about your stocking densities, survival
rates, as well as probiotic dosages and molasses dosages? Results
prior to and post-use of probiotic/molasses additions would be excellent.
This information would be extremely useful for many of us hatchery
producers.
e-mail: toddblacher1@yahoo.com