In T e s h t m s a fo b id s o in t le b b t a t t t (S T a p e s p li a e t t S r t r m c s a
Invest
ntroduction The red chic ectoparasite erious dama hens. Various o reduce th mation of res ubstances m addition, no
or treatmen ble alternativ
de are used istances and occupied sta nclude essen ory mites a ess affordab biophysical m based, amon
he specific amorphous s
he lungs, cr oxic by inha he lungs o SCHNIEDER et The particles actually alve pathological exposure. Ho
erved in th pronounced ine silicate alveolar mac et al., 2000).
o humans, o he stable) sh Standard diat ed chicken m han 20 µm.
ect biocidal manufacture clear but ins
tudies on th application o
tigation o silica
ken mite (D of poultry age to the h
s substances he infestatio sistance and may represe
active subst t without a ve, compoun d which are d which are ables (SCHUL
ntial oils, lig nd many m ble than sil mechanism o
g other thin surface. Wh silicates are rystalline sil alation, whic of both em
al. 2006).
below an a
eolar (DIN 4 changes in owever, no p
e simpler la long‐term e particles we crophages or In order to occupational hould always tomaceous e mite have av It is unclear effect on art r, particle siz sufficient su his aspect are
f liquid silica
‐ D
on the size te prepar
R
Dermanyssus which cause ealth and w s are used in on, whereby
possible res ent a future ances have
waiting peri nds containi
e unlikely t e also appro
LZ 2014). O ght programs ore, are less icates (SCHU
of action of gs, on the p hile scientist completely icates are e ch can be v mployees an
verage size 481, 1993) a
humans a pulmonary f aying hen lu exposure. A ere often ph
r formed clu o exclude a p l safety (e.g.
s be observed earths for the verage partic r whether th thropods. Ac zes below 16 ppression e e lacking. Re ate preparati
Rese
Department of A www4.fh‐sw
e distribut rations for
Roderich Ga
gallinae) is es in particu elfare of lay n poultry far y both the f sidues of act e limitation.
been approv iod. As a po ng silicon di to develop oved for use Other metho
s, fungi, pre s effective a
ULZ 2014). T the silicates article size a ts assume t y resorbable expected to ery harmful d laying he
of 4.25 µm and can cau fter prolong ibrosis was ung even af
lveolar cryst hagocytised usters (ROPER
possible haz . dust masks d.
e control of t cle sizes of l hese have a ccording to o 6 µm achiev ffect. Scient ecently also t
ions is possib
arch No
Agriculture, So wf.de/cms/fors
tion of Cu r the cont
armeister & M
an ular ying rms for‐
tive In ved ssi‐
iox‐
re‐
e in ods da‐
and The s is and hat e in be to ens
are use ged ob‐
fter tal‐
by
RTO ard s in
the ess di‐
one ve a tific the ble,
wh no ga In ba ea Th su siz Ma Th sie the be by pla of rep Th pe wi wa sta De al rem bo ca an rat mi sh wa cyl the sie sta pip co ex ca qu law
otes
est ‐ ISSN 256 schungsnotizen
mbasil® M trol of the
Marc Boelha
hich are supp o lung‐damag tions (SCHULZ
this study t sil® Mite sho rth preparat e aim of th spicion of a ze distributio aterial & Me
e investigati eve and sedi e method o eam diffractio
Dorfner anungsgesell
Witteler G port dated 0 e sieving an ett‐analysis a thin the sco as carried ou andard E D etermination soils. Metho moval of sol onates"). A
rbonates wo d the partic tion were w ixed with 20 aken in the ards the siev linder. The en cooled in eve‐passable
anding cylind pett‐analysis
llected with actly like the rried out in uantity share
w using Exce
N
7‐0484 n/
Mite in com red chick
auve
posed to be ging effect w
Z 2014) the particle
ould be com tion (Röder K
e study was biocidal eff ons.
ethods ion of the pa
mentation a f particle siz on. The latte Analysenze lschaft (Hirsc mbH. The r
7.06.2016.
nd sediment according to pe of this st ut in accorda IN ISO 112 of particle s od by sieving luble salts of chemical tre ould have al
le sizes. The weighed to 00 ml of the
overhead sh ving took pla
sieve residu n the desicc fractions w der by a fun s according the pipette e sieve residu n duplicate.
es was carrie el software.
No. 3/Marc
mparison ken mite
easy to use was proven i
size distribu mpared to a d
Kieselgur, Kl s to determ fect by mea
article size d analysis was ze measurem er method w
entrum un chau, Germa results are a
tation metho o Köhn) wer
tudy. The im ance with th 277 ("Groun size distribu g and sedime
f organic ma eatment to ltered the m refore, 25 g
an accuracy e dispersing haker for 16 ace over the ues were dr cator and re were collecte nnel and sub
to Köhn.
e were dried ues. The exa The calcu ed out via th For the ligh
h 2019
to other
and for whic n first invest
ution of Cum diatomaceou ieken GmbH ine the initi ns of partic
distribution b compared b ment by lase was carried ou nd Anlagen any) on beha
available in
ods (here: p re carried ou mplementatio
e current DI d condition tion in mine entation afte atter and ca
dissolve th microstructur of the prep y of 0.001 solution an 6 hours. Afte free‐standin ried at 105°
weighed. Th d in the free bjected to th
The volume and weighe amination wa
lation of th e Stokes´sch ht microscop
ch ti‐
m‐
us H).
al le
by by er ut n‐
alf a
pi‐
ut on IN ns.
er‐
er ar‐
he re a‐
g, nd er‐
ng C, he e‐
he es ed as he he pic
o K R In t m s in 6 t
T fr F
2 6 2 6 2 6
<
C
U C
F M
D T b f u fo m t e p s h s c F s
observation Klieken GmbH Results
n both meth ion 20 ‐ 63 μ method of la
ize of 60 μm ndicates that 60 μm or sm
han 60 μm.
Tab 1: Raw data rom rounding e Fraction
2000 – 630 µm 630 – 200 µm 200 – 63 µm 63 – 20 µm 20 ‐ 6,3 µm 6,3 – 2 µm
< 2 µm Control Sum %
Using light m Cumbasil® M
ig. 1: Light mic Mite (right) at 4
Discussion The use of ag bat the red c
ree and env usual acaricid
or the bioph must be obs he degree of effect depend product. Wh
trate any d hens in the
ilicates, the cle sizes is kn For the produ
ize of appro
a kieselgur H) was used.
hods an ave μm was dete
ser beam di m for a cumu t 50.41% of aller; 49.59%
a of grain size a errors.
Proportion (%) Laser measure‐
ment 0 12.9 35.23 26.68 11.32 6.59 6.75 99
microscopy, ite compare
roscope image 0x magnificatio
gents contain chicken mite ironmentally des. Resistan hysical effect erved (SCHN
f crystallinity ds on the pa hile SCHULZ
direct lung‐d investigatio alveolar pe own from ot uct "Cumbas ox. 55 to ove
‐ De
product (R .
rage grain s ermined. Th ffraction de lative value the particles
% of the part
analyses. The s
Proportion (%
sieve/sedimen 1 0 21.25 30.52 26.84 8.32 3.59 9.47 100
the coarse d to kieselgu
e of kieselgur (le on.
ning silicon d is considere y friendly alt nces are not t. However, u
IEDER 2006).
y, a possible article size of (2014) coul damaging e ons conduct rmeability o ther investig sil® Mite", an er 60 μm wa
Resear
partment of Ag www4.fh‐swf
Röder Kieselg
ize in the fr e more prec livers a part of 50.41%. T s have a size ticles are lar
sum of 99% res
) Proportion ( nt sieve/sedime
2 0 23.04 33.65 16.81 13.1 4.68 8.72 100
er structure ur is visible.
eft) and Cumba
dioxide to co ed a substan ternative to t
to be expect user protect
In addition lung‐damag f the respect d not demo ffect in lay ted with liq of certain pa gations.
n average gr as found in t
rch Note
griculture, Soes f.de/cms/forsch
gur
rac‐
cise icle This e of rger
sults
(%) ent
of
asil®
om‐
nce‐
the ted tion n to ging tive on‐
ying uid arti‐
rain the
inv lar gu rat μm Th ing Mi ap do for (AG
Th ba is l du mo
HA Fin Wit me Ref AG htt pdi De pla Me Ga infl en No Me tizi pfla Röd kie Rop Sili log Sch Vet Sch gel nen
es
st ‐ ISSN 2567‐
hungsnotizen/
vestigation. T rger than tha r or a synthe tion (67.9%
m) (Röder Kie is effect bec g a kieselgur
ite at the sa plies for th ominantly am
r which an a
GRAVIS, 2015 e significan sil® Mite co less harmful ue to an abra
obilization o
AUVE 2019).
nancial support tteler (Rüthen, ents of good sci
ferences
RAVIS Raiffeise p://www.desin i_ab_septembe utsches Institut tzatmosphäre;
essung luftgetra rmeister, R. & B luence of Cumb mite (Dermany . 5/2019, SWUA ewis, I., Ulrichs,
de Wirkung un anzen, Vol 65 (3 der Kieselgur K
selgur.de/4055 perto, F., Borza cate Pneumoco gy, Vol 122
hnieder, T., Boc terinärmedizini hulz, J. (2014): M
milbe (Derman nhaltung. Disse
No.
0484
The average at of a comm etic, amorph
at 11.2 ‐ 20 eselgur Klieke comes partic r at 40x mag
ame magnif e compariso morphous sil
average part ).
tly larger p uld be an in
to the lungs asive or ads f the mites
t: This work w , Germany) an entific practice
en AG:
ntec.de/media/
er_15/M‐EX_Pu t für Normung ( Festlegung der agener Partikel Boelhauve, M. ( basil® Mite on t yssus gallinae) o AS
C. (2013): Nan d neue Entwick 3) 2013, pp 118 lieken GmbH: h 55.html
cchiello, G., Un oniosis in Hens.
h, J.; Supperer, sche Parasitolo Maßnahmen zu yssus gallinae) rtation an der F
. 3/March 2 e grain size i mercially av hous silicon d 0 μm; and o
en GmbH; A cularly visibl gnification w fication (Fig.
on with a sy licon dioxide ticle size of
particle cont ndication tha s and that th sorbent effec
(cf. GARMEIS
was financed b nd was subject e.
/pdf/marken_1/
ulver_PDI_0914 (1993): DIN EN r Teilchengröße
(2019): Investig the movement on feathers. Re
nostrukturierte klungen. Journa 8 ‐ 122 http://www.roe
ngaro, R., Galat . Journal of Com
, R., Bauer, C. (H ogie. 6. Aufl. Stu ur Bekämpfung
in der ökologis Freien Universi
2019
is significant vailable kiese
dioxide prep nly 7.1% > 6 gravis).
e by compa with Cumbasi 1). This als ynthetic, pre e preparatio
7 μm is give
tent in Cum at the produ
e effect is le ct than to im
STER und BOE
by the compa t to the requir
/desintec_4/pd 4.pdf
481: Arbeits‐
enverteilung zu
gation on the of the red chick search Notes,
Silikate – Insek al für Kultur‐
eder‐
i, P. (2000):
mparative Patho
Hg.) (2006):
uttgart
der Roten Vo‐
schen Legehen‐
ität Berlin tly el‐
a‐
63
ar‐
l®
so e‐
n, en
m‐
ct ss m‐
EL‐
ny re‐
di/
ur
k‐
k‐
o‐
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