From:	IN%"mappleby@srv0.bio.ed.ac.uk"  "Mike Appleby" 16-MAR-2001 09:46:31.01
To:	IN%"applied-ethology@sask.usask.ca"  "Applied Ethology Discussion Group"
CC:	IN%"hubrecht@ufaw.org.uk"
Subj:	RE: Dog Barking & Facility Design

Dear Rayenna and others

This isn't my field (which never stops me commenting on anything!) 
but I have the feeling that Robert Hubrecht showed that a relatively 
simple change to dog housing can bring about a huge decrease in 
barking.  I think the story is that most pens have solid sides and 
the dogs can't readily see each other, and then barking increases 
by a sort of positive feedback, but that if you fit raised platforms so 
that they can see each other through the wire they hardly bark.  I 
don't know if Rob is on this list so I'm copying this to him.

Mike

Date sent:      	Thu, 15 Mar 2001 09:21:55 -0600
From:           	Rayenna Rhys <rayenna_rhys@flad.com>
Subject:        	Dog Barking & Facility Design
To:             	Applied Ethology Discussion Group <applied-ethology@skyway.usask.ca>

> It's been just about two years since I first contacted this group and
> asked for help with the above issue.  Many of you requested that I let
> the group know what our client finally decided to do--hence this email.
> 
> As I mentioned, we were hired to do master planning.  This process has
> been completed and most aspects of the new facility's design have been
> decided on, but there is no actual building yet (so I have no
> information as to whether the few things they agreed to try will
> actually reduce the amount of barking).
> 
> The client has approximately 400 dogs and the noise level is pretty
> horrendous.  They have agreed to a new housing arrangement with a
> maximum of 16 dogs in a "building."  This "building" is an
> enclosure/area completely separated from the other dogs (the next area)
> visually, physically, and audibly.  Each dog (in each enclosure) is
> individually penned.  We got nowhere with the idea of group housing.
> The client is absolutely convinced that group housing would spread
> disease too easily.  (Please remember I am reporting on our client--our
> client is not logical, but the people there are often adamant about what
> they think they know and quite convinced that we were nuts, or
> understandably ignorant, when we raised many of these ideas.)  The
> individual pens do not preclude physical contact between the dogs in
> each group (so why putting multiple dogs in one pen is a disease hazard
> is beyond us).
> 
> For each group of dogs, the dog pens are arranged around a work area
> where all food preparation and husbandry takes place.  The dogs can see
> everyone who enters the area, and all humans in the space are visible to
> all the dogs at all times.
> 
> They also agreed to use sound soak panels within the facility to help
> absorb noise.  The architect for this project said to be sure to mention
> that in large facilities that house many animals, in order to reduce
> maintenance costs and the risk of contamination, we generally have no
> option but to use hard, impervious surfaces (which are horrible choices
> for reducing noise).  Generally, our clients won't even discuss any sort
> of sound absorbing panels, so this was a minor achievement of sorts.
> 
> Each dog in each group has an individual outdoor run area (grass
> covered, not concrete), but there is no provision for allowing the dogs
> to be outside together (again, the disease concern).
> 
> There was some skepticism about the claim that an animal behaviorist
> could train the dog handlers to then train the dogs not to bark (at
> least not to bark under certain situations), so they haven't followed up
> on that idea.  However, once the new building is finished, if barking is
> still a bad problem, they may reconsider (especially since they would
> then have smaller groups of dogs to work with).
> 
> I'm sorry I don't have more to report.  Our clients tend to be
> conservative and generally unwilling to try new ideas.  However, we
> provided them with copies of everything we found and transcripts of all
> our conversations, so perhaps some seeds have been planted.
> 
> Thanks again for all your help.
> 
> Rayenna Rhys
> Flad & Associates
> Madison, Wisconsin
> rayenna_rhys@flad.com
> 



Michael Appleby

Dr M.C. Appleby
Director of Postgraduate Studies
  in Agriculture & Resource Economics
Institute of Ecology and Resource Management
University of Edinburgh
West Mains Road
Edinburgh EH9 3JG, UK
Tel. +44 131 535 4098
Fax. +44 131 667 2601
Email michael.appleby@ed.ac.uk

From:	IN%"olokbo@yahoo.com"  "lieve Bijnens" 19-MAR-2001 09:44:38.18
To:	IN%"Applied-ethology@sask.usask.ca"
CC:	
Subj:	marketplace

Dear All,

I am writing a project on welfare/stress of farm
animals at marketplaces, expositions, fairs and so on.
Thus I was wondering if somebody was or is currently
working on this topic. All suggestions and references
are most welcome. 
Thank you very much,

Lieve Meers
Department of Ethology 
Ghent University
Belgium
e-mail : OLOKBO@yahoo.com


__________________________________________________
Do You Yahoo!?
Get email at your own domain with Yahoo! Mail. 
http://personal.mail.yahoo.com/

From:	IN%"meredith@farmline.com"  "Michael Meredith" 19-MAR-2001 14:35:02.82
To:	IN%"Applied-ethology@sask.usask.ca"  "Ethology Posting"
CC:	
Subj:	RE: marketplace

Dear Lieve,

As Prof. Don Broom has pointed out, disease is an important form of stress
and an important aspect of welfare, so the acquisition and spread of disease
may be something you would like to consider.

Also, of course, the stress of transportation, mixing and overwhelmingly
strange environments can reduce immune function in a variety of ways, and
increase excretion of pathogens such as Salmonella.

"The Biology of Animal Stress" edited by Dr. G. Moberg & Dr. J. A. Mench
includes reviews of stress effects on disease resistance, see:
http://members.farmline.com/stress/sunflower/BOOKS/BIOLOGY.HTM

The current epidemic of Foot and Mouth Disease in UK has been devastating as
a result of massive movements of sheep around markets.  One batch of sheep
had been transported around 7 different holdings and hundreds of miles in a
14 day period!!
see further info on this topic at: http://www.pighealth.com/

Good luck with your work!
Mike Meredith

----- Original Message -----
From: "lieve Bijnens" <olokbo@yahoo.com>
To: <Applied-ethology@skyway.usask.ca>
Sent: Monday, March 19, 2001 3:36 PM
Subject: marketplace


> Dear All,
>
> I am writing a project on welfare/stress of farm
> animals at marketplaces, expositions, fairs and so on.
> Thus I was wondering if somebody was or is currently
> working on this topic. All suggestions and references
> are most welcome.
> Thank you very much,
>
> Lieve Meers
> Department of Ethology
> Ghent University
> Belgium
> e-mail : OLOKBO@yahoo.com
>
>
> __________________________________________________
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
> http://personal.mail.yahoo.com/
>


From:	IN%"appleby@petbcent.demon.co.uk"  "David Appleby" 20-MAR-2001 06:59:26.08
To:	IN%"Applied-ethology@sask.usask.ca"  "Applied-ethology"
CC:	
Subj:	Details of the APBC's Pet Behaviour 2001: seminar series

Dear all,

You will find the new details of the APBC's Pet Behaviour 2001: seminar
series at:

 http://www.apbc.org.uk/Pet%20Behaviour%202001.htm

Best wishes.

             David

----------------------------------------
Name:David Appleby
Address:The Pet Behaviour Centre,
Upper street, Defford, Worcestershire.
WR8 9AB.England.
Phone:+44(0)1386 750615
Fax:+44(0)1386 750743
E-mail:appleby@petbcent.demon.co.uk
WWW: http://www.petbcent.demon.co.uk
----------------------------------------



From:	IN%"appleby@petbcent.demon.co.uk"  "David Appleby" 21-MAR-2001 00:17:01.28
To:	IN%"applied-ethology@sask.usask.ca"  "Applied-ethology"
CC:	
Subj:	New address for the APBC's Pet Behaviour 2001 seminar series

Dear all,

Here is a new address for the APBC's Pet Behaviour 2001 seminar series.

www.apbc.org.uk/pb2001.htm

The old address will still work.

Best wishes.

             David 

----------------------------------------
Name:David Appleby
Address:The Pet Behaviour Centre,
Upper street, Defford, Worcestershire.
WR8 9AB.England.
Phone:+44(0)1386 750615
Fax:+44(0)1386 750743
E-mail:appleby@petbcent.demon.co.uk
WWW: http://www.petbcent.demon.co.uk
----------------------------------------

From:	IN%"M.Schilder@las.vet.uu.nl"  "Matthijs Schilder" 22-MAR-2001 04:11:10.96
To:	IN%"applied-ethology@sask.usask.ca"
CC:	
Subj:	horses, stress and ramming piles

Dear members

I got a question related to the fact that at about 75 meters of a manege, 
housing many horses, a number of piles will be rammed. This ramming will 
last about two weeks and will go on day and night. The owner of the manege 
is afraid that the horses in his stable will panic, be it from the sound or 
from the trembling of the earth.  He askes for advice.
Does anyone has experience with horses that close to such a source of sound 
and trembling? Does anyone know whether or not horses habituate quickly to 
sounds/tremblings like the ones to be expected?  Is moving the horses away 
altogether to another manege advisable??
I have no idea whether or not horses respond to trembling of the earth at 
all. I am aware of subsonic communication in elephants, and of stamps with 
the hooves, given by deer and antilopes as a alarm signal, but such 
behaviour in horses does not exist, as far as I know.

thanks very much in advance for responding

yours sincerely,

Matthijs Schilder
dr M.B.H. Schilder
Utrecht University
WCDM
Yalelaan 17
3584CZ Utrecht, the  Netherlands
tel +31 30 2534784
fax +31 30 2539227

From:	IN%"mappleby@srv0.bio.ed.ac.uk"  "Mike Appleby" 22-MAR-2001 09:58:27.79
To:	IN%"applied-ethology@usask.ca"
CC:	
Subj:	postdoc position

Dear All

I'm just passing this on.  Please don't reply to me.

Mike


University of Nottingham
School of Life and Environmental Sciences

Research Assistant

Grade IA, starting salary of £18,731 on the scale £16,286 to 
£24,479 

Applications are invited for a postdoctoral research assistantship in 
the Animal Behaviour & Ecology Research Group of the School of 
Life & Environmental Sciences, at University Park.  The successful 
candidate will be part of a project looking at adaptive trade-offs 
between learning and immune function in mice.  Candidates should 
hold a PhD in a relevant field and preferably have research interests 
in both functional and physiological aspects of behaviour.    

This post is funded for 3 years by the Leverhulme Trust and the 
successful candidate is expected to be in post by October 2001.  
For further details, contact { HYPERLINK mailto:christopher.barnard@nottingham.ac.uk }christopher.barnard@nottingham.ac.uk. 

Candidates should send a detailed CV, together with the names 
and addresses of two referees, to Professor C.J. Barnard, School 
of Life & Environmental Sciences, University of Nottingham, 
University Park, Nottingham NG7 2RD, UK  Closing date: May 15th  
2001.



Michael Appleby

Dr M.C. Appleby
Director of Postgraduate Studies
  in Agriculture & Resource Economics
Institute of Ecology and Resource Management
University of Edinburgh
West Mains Road
Edinburgh EH9 3JG, UK
Tel. +44 131 535 4098
Fax. +44 131 667 2601
Email michael.appleby@ed.ac.uk

From:	IN%"JPGarner@UCDavis.Edu"  "Garner, Joseph P." 22-MAR-2001 13:43:20.90
To:	IN%"applied-ethology@sask.usask.ca"  "ISAE (E-mail)", IN%"ISAEnet-l@usask.ca"  "ISAEnet (E-mail)"
CC:	
Subj:	ISAE 2001 update - tentative schedule

Hi everyone, 

The ISAE 2001 machine is gathering momentum like you wouldn't believe.
Here's your latest update from the eye of the storm.

Firstly, for people who have submitted abstracts - thank you. We are aiming
to notifying you as to the status of your abstract by April 6th. The next
deadline - for finalised abstracts - will be May 1st. At which point the
scientific program will be finalised. The scientific program will be
available on the web in early May. 

We were amazed by the number of submissions we received, the electronic
submission system coped admirably. On the other hand however, the deluge has
sent the human part of the machine into a complete panic. We've had a mad
dash to rearrange the logistics to accommodate the huge increase from our
expected numbers. This has also slowed down the review process a little, so
please bear with us.

Secondly, we now have updated housing information and a tentative schedule
posted on the website

housing:
http://animalwelfare.ucdavis.edu/conference/ethology/accomodations.html
schedule:
http://animalwelfare.ucdavis.edu/conference/ethology/genschedule.html

The registration details and costs should be finalised and posted on the
website by mid-April. 

see you in the summer! 

cheers

Joe

p.s. it's already shorts, sandals and t-shirt weather here. hee hee hee.

___________________________

Dr. Joseph Garner
University of California
Department of Animal Science
One Shields Avenue
Davis
CA 95616
USA

Phone: (530) 752 1253



-----Original Message-----
From: Sue P. Heekin [mailto:spheekin@ucdavis.edu] 
Sent: Thursday, March 22, 2001 11:14 AM
To: 'Garner, Joseph P.'
Subject: RE: ISAE meeting




Hi Joe,

Joy asked if you could please post a note to the Applied Ethology Net and
the ISAE Net stating that we now have a tentative schedule and updated
information on housing on the website.  Include that the scientific program
should be finalized by the end of April (is that realistic?) and the
registration details and costs should be finalized and posted by mid-April(I
hope).

You write such fun, informative and interesting posts, I am sure that all
will read about ISAE with great interest!

Thanks,

Sue

From:	IN%"galindof@servidor.unam.mx" 22-MAR-2001 14:28:21.56
To:	IN%"applied-ethology@sask.usask.ca"
CC:	
Subj:	mobile slaughter-house

Dear members,
Could someone help me with information on mobile slaughter-houses 
manufacturers ?
Many thanks and best wishes,
Francisco Galindo


*************************************
Dr. Francisco Galindo
Depto. de Etologia y Fauna Silvestre
Facultad de Medicina Veterinaria y Zootecnia
Ciudad Universitaria  UNAM
04510 Mexico D.F.

Tel. 52-5-6225941
Fax 52-5-6162342
galindof@servidor.unam.mx

From:	IN%"Jorge.Chedrese@usask.ca"  "Jorge Chedrese" 22-MAR-2001 18:23:52.31
To:	IN%"aaa172@mail.usask.ca", IN%"adams@sask.usask.ca", IN%"albert.barth@usask.ca", IN%"allison.case@usask.ca", IN%"anand@intrepid.usask.ca", IN%"andre.palasz@usask.ca", IN%"aravindaksha@sask.usask.ca", IN%"armstrongt@sask.usask.ca", IN%"b.laarveld@usask.
CC:	
Subj:	Two thing of interest for the reproductive biologist

Hello everybody, please find forwarded a message from Dr. R. Mapletoft
with the tentative schedule for Dr. Antonio Garcia.

I would also like to remaind about our seminar tomorrow, Friday March
23.  Michael Furlan will talk about a New Wave of Reproductive Drugs.  I
hope to see you there.

Regards, Jorge.

--
P. Jorge Chedrese DVM, MSc, Ph.D
Associate Professor
Department of Obstetrics & Gynecology
103 Hospital Dr.
Saskatoon, Sk
Canada, S7N 0W8
Tel. 306-966-7739
Fax. 306-966-8040
Email: Chedresj@Duke.Usask.CA
Internet: http://www.usask.ca/medicine/obgyn/faculty/chedrese.html


From:	IN%"Andreas.Briese@tiho-hannover.de"  "Andreas Briese" 23-MAR-2001 02:05:21.90
To:	IN%"applied-ethology@sask.usask.ca", IN%"galindof@servidor.unam.mx"
CC:	
Subj:	RE: mobile slaughter-house

Hi Francisco,

at minimum one manufacturer is actually located in germany. If you got
some time to wait, i will come back to you with further information in
20 days or so. If you speak (or read) german, you may find further
information at: 

A. Briese (1996): Mobile Schlachtstaetten.
Dtsch. tieraerztl. Wschr. 103, 58-62

Greetings
Andreas

> Date:          Thu, 22 Mar 2001 14:26:38 +0000
> From:          francisco galindo <galindof@servidor.unam.mx>
> Subject:       mobile slaughter-house
> To:            applied-ethology@sask.usask.ca
> Reply-to:      galindof@servidor.unam.mx
> Priority:      normal

> Dear members,
> Could someone help me with information on mobile slaughter-houses 
> manufacturers ?
> Many thanks and best wishes,
> Francisco Galindo
> 
> 
> *************************************
> Dr. Francisco Galindo
> Depto. de Etologia y Fauna Silvestre
> Facultad de Medicina Veterinaria y Zootecnia
> Ciudad Universitaria  UNAM
> 04510 Mexico D.F.
> 
> Tel. 52-5-6225941
> Fax 52-5-6162342
> galindof@servidor.unam.mx
> 
++++++++++++++++++++++++++++++++++++++++++++++++++++
Institut fuer Tierhygiene und Tierschutz
Tieraerztliche Hochschule Hannover
(Institute of Animal Hygiene and Welfare)   
(School of Veterinary Medicine Hannover)
Dr. med. vet. Andreas Briese
 
Buenteweg 17p
30559 Hannover

Tel.: (0511) 953-8837
(0511) 120 2102
Fax.: (0511) 953-8588
(0511) 120 99 2102
e-mail: Andreas.Briese@tiho-hannover.de
alternativ (grosse Attachments): Andreas_Briese@animcare-sci.de
++++++++++++++++++++++++++++++++++++++++++++++++++++

From:	IN%"Andreas.Briese@tiho-hannover.de"  "Andreas Briese" 23-MAR-2001 02:09:15.33
To:	IN%"applied-ethology@sask.usask.ca"
CC:	
Subj:	MAYBE the BSE arrived in USA

ENS-News from 21th

http://ens-news.com/ens/mar2001/2001L-03-21-01.html

>Mad Sheep Seized in Vermont

>MONTPELIER, Vermont, March 21, 2001 (ENS) - A flock of sheep 
>infected with a condition closely related to mad cow disease has 
>been confiscated from a Vermont farm by the U.S. Department of 
>Agriculture (USDA). 

++++++++++++++++++++++++++++++++++++++++++++++++++++
Institut fuer Tierhygiene und Tierschutz
Tieraerztliche Hochschule Hannover
(Institute of Animal Hygiene and Welfare)   
(School of Veterinary Medicine Hannover)
Dr. med. vet. Andreas Briese
 
Buenteweg 17p
30559 Hannover

Tel.: (0511) 953-8837
(0511) 120 2102
Fax.: (0511) 953-8588
(0511) 120 99 2102
e-mail: Andreas.Briese@tiho-hannover.de
alternativ (grosse Attachments): Andreas_Briese@animcare-sci.de
++++++++++++++++++++++++++++++++++++++++++++++++++++

From:	IN%"bda@danskeslagterier.dk"  "Birgitte Iversen Damm" 23-MAR-2001 02:51:31.06
To:	IN%"applied-ethology@sask.usask.ca"
CC:	IN%"BNF@danskeslagterier.dk"  "Brian N. Fisker"
Subj:	A test for "calmness" in large groups of gestating sows?

Dear all,
Does anyone have experience with or know of a test that can be used for the following purposes and in the following setting:

We want  to investigate the effects of ad lib access to roughage in addition to concentrate via electronic sows feeding (ESF) on behaviour in large dynamic groups of gestating sows (app. 100 sows) on commercial farms. We would like to supplement our observations covering aggression and general activity with a test indicating how long it takes for the sows to calm down after a disturbance. I have not been able to find descriptions of a test that can be performed on such a large group of adult pigs. I imagine that one would have to make e.g. a loud sound (?) in a standardised position in the pen during the sows' resting period and then measure the latency until the group had settled according to some predetermined definition. Any ideas or knowledge of methods that you can recommend (or disencourage me from using) would be greatly appreciated.

Thanking you in advance,
Birgitte Damm
The National Committee for Pig Production
Axeltorv 3
1609 Copenhagen V
Denmark




From:	IN%"janicecox@yahoo.com"  "Janice Cox" 23-MAR-2001 08:48:10.82
To:	IN%"Applied-ethology@sask.usask.ca"
CC:	
Subj:	Asia - Farming

Members with an interest in farm animals might be
interested to see the recent research into the growth
of factory farming in 'developing' countries prepared
for Compassion in World Farming (CIWF). 
see: -
http://www.ciwf-livestock-revolution.co.uk/

A colleague is currently looking at livestock farming
and farm animal welfare in three Asian countries: The
Phillipines, Japan and Taiwan. If any members have
information on livestock farming in these countries,
please could they send it to me. I would welcome any
information - research or experience/anecdotal.

With Kind Regards,

Janice  Cox


From:	IN%"JJCooper@dmu.ac.uk"  "Jonathan Cooper" 29-MAR-2001 02:06:16.19
To:	IN%"Applied-ethology@sask.usask.ca"  "'Applied-ethology@skyway.usask.ca'", IN%"ISCP-L@LISTSERV.TCU.EDU"  "'ISCP-L@LISTSERV.TCU.EDU'", IN%"\sISAEnet-l@usask.ca\s"
CC:	IN%"IMCEAMAILTO-WALTER+2EBURGHARDT+40LACKLAND+2EAF+2EMIL@dmu.ac.uk"  "'Burghardt Walter F Jr GS-14 341TRS/SGV'"
Subj:	FW: Call for Papers

"The Second International Working Dog Breeding Conference will be held
September 10-12, 2001 in San Antonio, Texas.  The focus of this meeting is
three-fold:  basic and applied research pertaining to the selective
breeding, whelping, rearing, and assessment of working dogs; management of
working dog breeding programs; and issues in veterinary care of working dog
broodstock and their progeny.  Abstracts of no more than 100 words will be
considered for 50 minute keynote presentations, 15 minute short
presentations, and poster presentations.  The deadline for submitting
abstracts is May 31, 2001.  Abstracts should be submitted to Dr Walt
Burghardt electronically at  <mailto:Walter.Burghardt@Lackland.af.mil>
Walter.Burghardt@Lackland.af.mil.  For more information, please contact the
coordinator at the above e-mail address or phone (210)671-3991."

Walter F Burghardt, Jr, DVM, PhD 
Diplomate, American College of Veterinary Behaviorists 
Chief, Behavioral Medicine and Military Working Dog Studies 
Department of Defense Military Working Dog Veterinary Service 
1219 Knight Street 
Lackland Air Force Base, Texas  78236-5631 
Telephone:  (210)671-3991, DSN 473 
FAX:  (210)671-2308 
E-mail:  mailto:Walter.Burghardt@Lackland.af.mil
<mailto:Walter.Burghardt@Lackland.af.mil>  


From:	IN%"JJCooper@dmu.ac.uk"  "Jonathan Cooper" 29-MAR-2001 02:12:39.36
To:	IN%"isaeuk-owner@listbot.com"  "'isaeuk'", IN%"ISAEnet-l@usask.ca"  "'ISAEnet-l@usask.ca'", IN%"Applied-ethology@sask.usask.ca"
CC:	
Subj:	FW: Call for Papers

-----Original Message-----
From: Jonathan Cooper 
Sent: 29 March 2001 09:02
To: ISCP-L@LISTSERV.TCU.EDU
Subject: FW: Call for Papers


"The Second International Working Dog Breeding Conference will be held
September 10-12, 2001 in San Antonio, Texas.  The focus of this meeting is
three-fold:  basic and applied research pertaining to the selective
breeding, whelping, rearing, and assessment of working dogs; management of
working dog breeding programs; and issues in veterinary care of working dog
broodstock and their progeny.  Abstracts of no more than 100 words will be
considered for 50 minute keynote presentations, 15 minute short
presentations, and poster presentations.  The deadline for submitting
abstracts is May 31, 2001.  Abstracts should be submitted to Dr Walt
Burghardt electronically at  <mailto:Walter.Burghardt@Lackland.af.mil>
Walter.Burghardt@Lackland.af.mil.  For more information, please contact the
coordinator at the above e-mail address or phone (210)671-3991."

Walter F Burghardt, Jr, DVM, PhD
Diplomate, American College of Veterinary Behaviorists
Chief, Behavioral Medicine and Military Working Dog Studies
Department of Defense Military Working Dog Veterinary Service
1219 Knight Street
Lackland Air Force Base, Texas  78236-5631
Telephone:  (210)671-3991, DSN 473
FAX:  (210)671-2308
E-mail:  mailto:Walter.Burghardt@Lackland.af.mil
<mailto:Walter.Burghardt@Lackland.af.mil>

From:	IN%"nicholas@ibg.uit.no"  "Nicholas Tyler" 29-MAR-2001 02:19:50.37
To:	IN%"Applied-ethology@sask.usask.ca"
CC:	
Subj:	early embryonic mortality

Dear list-members,

Can anyone tell me where I can find authoritative published support for the
following statement (or even the original)?

'Distinction is sometimes made between 'early embryonic mortality', which
is death of the blastocyst and 'late embryonic mortality', which is death
of the embryo and membranes; death of the conceptus after implantation is
sometimes called 'foetal mortality'.' 

Nick




Dr. Nicholas Tyler
Department of Biology, University of Tromso, 
N-9037 Tromso, Norway

tel.(direct):      +47 77 64 47 88
fax.:                +47 77 64 63 33
mobile phone:  +47 90 57 72 98

Abstracts from the 10th Arctic Ungulate Conference:
http://www.fm.uit.no/info/imb/arktisk/ungulate/ungulate.html

From:	IN%"meredith@farmline.com"  "Michael Meredith" 29-MAR-2001 05:43:16.74
To:	IN%"Applied-ethology@sask.usask.ca"  "Ethology Posting"
CC:	
Subj:	RE: early embryonic mortality

Dear Nicholas,

Linguistic purists prefer the term "'Early embryo mortality' to  "Early
embryonic mortality"

> of the embryo and membranes; death of the conceptus after implantation is
> sometimes called 'foetal mortality'.'

"Implantation" is an incorrect term in domesticated animals - it is only
appropriate for humans and rodents where the embryo intimately "burrows"
into
the endometrium.  The correct term in domesticated animals is "attachment".

After attachment, the early (free) embryo becomes a late (attached) embryo.

The embryo does not become a fetus (this spelling is now more widely used
than the original "foetus") until the process of "organogensis" is
completed - i.e. the embryo has attained the structural features of a mature
member of the species, the fetal period is a period of differential growth
rather than development of any new structures.  A practical marker of this
time (beginning of the fetal period)  is that calcium starts to be deposited
in the skeleton, which means that failure of pregnancy results in
identifiable loss of the products of conception (an embryo can disappear
without trace - commonly termed resorbtion although it is possible that
some embryo components are expelled in unidentifiable form, whereas a fetus
must be identifiably aborted, macerated or mummified).

Further information about embryo mortality and the transformation of embryo
to fetus, in farm animals, goats and horses can be found in the book I
edited: "Animal Breeding and Infertility" published by Blackwell Science,
details at:
http://www.pighealth.com/MEDIA/P/ABI/ABANDI.HTM


Best Wishes
MIke  Meredith  www.pighealth.com