La litt\u00e9rature scientifique et v\u00e9t\u00e9rinaire le d\u00e9crit surtout comme une combinaison de probl\u00e8mes de socialisation, de d\u00e9pendance excessive entre chiots, et de difficult\u00e9s d\u2019apprentissage<\/strong>.<\/p>\n\n\n\n Certaines \u00e9tudes scientifiques ont montr\u00e9s :<\/p>\n\n\n\n Le concept repose principalement sur des retours de terrain. Les probl\u00e8mes sont r\u00e9els, mais le statut de \u201csyndrome\u201d reste d\u00e9battu.<\/p>\n\n\n\n Si une famille choisit malgr\u00e9 tout d\u2019\u00e9lever deux chiots ensemble, les mesures suivantes sont largement conseill\u00e9es :<\/p>\n\n\n\n \ud83d\udc49 \u00c9lever deux chiots ensemble augmente le risque de difficult\u00e9s comportementales si l\u2019on ne met pas en place une \u00e9ducation individualis\u00e9e et une socialisation riche. Ce risque est largement rapport\u00e9 par les praticiens, mais la litt\u00e9rature scientifique formelle reste limit\u00e9e.<\/strong><\/em><\/p>\n<\/blockquote>\n\n\n\n Fratt, K. (2019, f\u00e9vrier). There\u2019s no scientific reason to believe littermate syndrome exists<\/em>. Journal of the International Association of Animal Behavior Consultants. https:\/\/journal.iaabcfoundation.org\/littermate-syndrome\/<\/a> Appleby, D. L., Bradshaw, J. W. S., & Casey, R. A. (2002). Relationship between aggressive and avoidance behaviour by dogs and their experience in the first six months of life. Veterinary Record, 150<\/em>(14), 434\u2013438. https:\/\/doi.org\/10.1136\/vr.150.14.434<\/a> Qu’est ce que c’est ? Le \u201clittermate syndrome\u201d ou \u00ab\u00a0syndrome de la port\u00e9e\u00a0\u00bb n\u2019est pas un diagnostic clinique officiel mais une expression utilis\u00e9e pour d\u00e9crire les difficult\u00e9s comportementales observ\u00e9es lorsque deux chiots – le plus souvent issus de la m\u00eame port\u00e9e – sont \u00e9lev\u00e9s ensemble. La litt\u00e9rature scientifique et v\u00e9t\u00e9rinaire le d\u00e9crit surtout comme une […]<\/p>\n","protected":false},"author":1,"featured_media":1554,"comment_status":"open","ping_status":"closed","sticky":false,"template":"post-no-sidebar","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[57],"tags":[],"class_list":["post-1528","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/posts\/1528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/comments?post=1528"}],"version-history":[{"count":18,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/posts\/1528\/revisions"}],"predecessor-version":[{"id":1889,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/posts\/1528\/revisions\/1889"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/media\/1554"}],"wp:attachment":[{"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/media?parent=1528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/categories?post=1528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lapatteduloup.fr\/index.php\/wp-json\/wp\/v2\/tags?post=1528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
![\"Littermate](\"https:\/\/lapatteduloup.fr\/wp-content\/uploads\/2025\/09\/ChatGPT-Image-3-sept.-2025-07_18_51-1024x683.png\")
<\/figure>\n\n\n\nSolutions et recommandations<\/h1>\n\n\n\n
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Sources<\/h1>\n\n\n\n
Erb, H. (2023, 7 d\u00e9cembre). Littermate syndrome: Why one puppy might be better than two<\/em>. American Kennel Club. https:\/\/www.akc.org\/expert-advice\/puppy-information\/littermate-syndrome\/<\/a>
McConnell, P. (2014). Adopting littermates\u2026 (Don\u2019t)<\/em>. The Other End of the Leash. https:\/\/www.patriciamcconnell.com\/theotherendoftheleash\/adopting-littermates-dont\/<\/a>
Miller, P. (2009). Problems with adopting two puppies simultaneously<\/em>. Whole Dog Journal. https:\/\/www.whole-dog-journal.com\/puppies\/pre_puppy_prep\/problems-associated-with-adopting-two-puppies-at-the-same-time\/<\/a>
Wikipedia contributors. (2025, 7 avril). Littermate syndrome<\/em>. Wikipedia. https:\/\/en.wikipedia.org\/wiki\/Littermate_syndrome<\/a>
Veterinary Partner. (s.d.). Littermate syndrome<\/em>. https:\/\/veterinarypartner.vin.com\/default.aspx?pid=19239&catId=254081&id=11564754&ind=666&objTypeID=10<\/a><\/p>\n\n\n\n
Battaglia, C. L. (2009). Periods of early development and the effects on behavior. Journal of Veterinary Behavior: Clinical Applications and Research, 4<\/em>(5), 203\u2013210. https:\/\/doi.org\/10.1016\/j.jveb.2009.03.003<\/a>
Foyer, P., Bj\u00e4llerhag, N., Wilsson, E., & Jensen, P. (2014). Behavior and experiences of dogs during the first year of life predict the outcome in a later temperament test. Applied Animal Behaviour Science, 155<\/em>, 93\u2013100. https:\/\/doi.org\/10.1016\/j.applanim.2014.03.006<\/a>
Howell, T. J., King, T., & Bennett, P. C. (2015). Puppy parties and beyond: The role of early age socialization practices on adult dog behaviour. Veterinary Medicine: Research and Reports, 6<\/em>, 143\u2013153. https:\/\/doi.org\/10.2147\/VMRR.S62081<\/a>
Lindsay, S. R. (2000). Handbook of applied dog behavior and training<\/em>. Wiley-Blackwell. https:\/\/doi.org\/10.1002\/9780470344514<\/a>
Serpell, J., & Jagoe, J. A. (1995). Early experience and the development of behaviour. In J. Serpell (Ed.), The domestic dog: Its evolution, behaviour, and interactions with people<\/em> (pp. 79\u2013102). Cambridge University Press. https:\/\/doi.org\/10.1017\/9781139161800.006<\/a>
Sherman, B. L., & Mills, D. S. (2008). Canine anxieties and phobias: An update on separation anxiety and noise aversions. Veterinary Clinics of North America: Small Animal Practice, 38<\/em>(5), 1081\u20131106. https:\/\/doi.org\/10.1016\/j.cvsm.2008.04.012<\/a>
Slabbert, J. M., & Rasa, O. A. E. (1997). Observational learning of an acquired maternal behaviour pattern by working dog pups: An alternative training method? Applied Animal Behaviour Science, 53<\/em>(4), 309\u2013316. https:\/\/doi.org\/10.1016\/S0168-1591(96)01163-4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"