Evans Rebecca I, Herbold John R, Bradshaw Benjamin S, Moore George E
Department of Defense Military Working Dog Veterinary Service, 1219 Knight St, Lackland AFB, TX 78236, USA.
J Am Vet Med Assoc. 2007 Oct 15;231(8):1215-20. doi: 10.2460/javma.231.8.1215.
To determine causes for discharge of military working dogs (MWDs) from service.
Retrospective case series.
268 MWDs.
Records of all MWDs approved for discharge from December 2000 through November 2004 were evaluated for cause of discharge.
23 dogs had been obtained through the Department of Defense breeding program but had failed to meet prepurchase or certification standards. The remaining 245 (120 German Shepherd Dogs, 100 Belgian Malinois, and 25 dogs of other breeds) had been purchased as adults or obtained through the breeding program and had passed prepurchase and certification standards. Eighty-five of the 245 (34.7%) adult dogs were 1 to < 5 years old at discharge, and 160 (65.3%) were >or= 5 years old at discharge. The proportion of adult dogs < 5 years old at discharge that were German Shepherd Dogs (69.4%) was significantly greater than the proportion of adult dogs >or= 5 years old at discharge that were German Shepherd Dogs (38.1%). Within the subgroup of dogs >or= 5 years old at discharge, median age at discharge for the German Shepherd Dogs (8.59 years) was significantly less than median age at discharge for the Belgian Malinois (10.61 years). For adult dogs < 5 years old at discharge, the most common cause for discharge was behavioral problems (82.3%).
Results suggested that longevity of service for MWDs may be influenced by breed differences and that selection criteria should be evaluated to reduce behavior-related discharge from service.
确定军犬退役的原因。
回顾性病例系列研究。
268只军犬。
对2000年12月至2004年11月期间所有被批准退役的军犬记录进行退役原因评估。
23只犬是通过国防部繁育计划获得的,但未达到购买前或认证标准。其余245只(120只德国牧羊犬、100只比利时马林诺斯犬和25只其他品种犬)是成年时购买的或通过繁育计划获得的,并且通过了购买前和认证标准。245只成年犬中,85只(34.7%)退役时年龄为1至<5岁,160只(65.3%)退役时年龄≥5岁。退役时年龄<5岁的成年犬中德国牧羊犬的比例(69.4%)显著高于退役时年龄≥5岁的成年犬中德国牧羊犬的比例(38.1%)。在退役时年龄≥5岁的犬亚组中,德国牧羊犬的中位退役年龄(8.59岁)显著低于比利时马林诺斯犬的中位退役年龄(10.61岁)。对于退役时年龄<5岁的成年犬,最常见的退役原因是行为问题(82.3%)。
结果表明,军犬的服役寿命可能受品种差异影响,应评估选择标准以减少与行为相关的退役情况。