相比之下，国外对于狗狗活体繁殖者的分类更加详细和规范。以下是根据一份美国标准书，小编翻译的划分类别：兴趣繁殖者一些某品种的忠实发烧友，他们通常养一两种血系的狗狗。在作繁殖计划时，他们会努力遵循维持和保护这一血统的原则。他们每年只繁殖5胎以内。只有当这窝狗有助于加强这一品种时他们才会做繁殖计划。他们在良好的环境和与主人充分的接触情况下喂养狗宝宝。他们经营很小很干净的犬舍，并通过协议保护繁殖者、狗狗和购买者的利益。他们监控自己的种犬，避免因遗传缺陷发生疾病。他们和犬种协会或者犬业协会合作，共同保护这一犬种。他们关爱每只幼犬，并尽可能的为其找到最好的家庭。Hobby breeder：A breed fancier who usually has only one breed but may have two; follows a breeding plan in efforts to preserve and protect the breed; produces from none to five litters per year; breeds only when a litter will enhance the breed and the breeding program; raises the puppies with plenty of environmental and human contact; has a contract that protects breeder, dog, and buyer; runs a small, clean kennel; screens breeding stock to eliminate hereditary defects from the breed; works with a breed club or kennel club to promote and protect the breed; and cares that each and every puppy is placed in the best home possible.
商业繁殖者这些人通常有数个品种的狗，他们主要出于生存动机赚取养狗的利益。他们的犬舍可能干净也可能不干净，他们饲养的狗狗可能健康或存在疾病。他们的狗狗可能没有通过基因疾病筛选，他们的种犬可能也没有严格按照犬种标准和性格进行筛选。大部分的商业繁殖者将自己繁殖的幼犬卖到宠物店或卖给狗贩子。Commercial breeder:One who usually has several breeds of dogs with profit as the primary motive for existence. The dogs may be healthy or not and the kennel may be clean or not. The dogs are probably not screened for genetic diseases, and the breeding stock is probably not selected for resemblance to the breed standard or for good temperament. Most commercial breeders sell their puppies to pet stores or to brokers who sell to pet stores.
经销商这些人从商业犬舍购买幼犬并转卖给宠物零售商（宠物店等）。他们在全国各地用箱子空运或卡车运送幼犬。他们必须经过美国农业部批准并遵守运送管理条例，保障动物安全。Broker:One who buys puppies from commercial kennels and sells to retail outlets. Brokers ship puppies by the crate-load on airlines or by truckload throughout the country. Brokers must be licensed by USDA and must abide by the shipping regulations in the Animal Welfare Act.
批发商这些人收集不知出处的狗狗贩卖给实验室或其他批发商或者经销商。这种批发商被称作是在这个狗狗营销体系中比幼犬繁殖工厂更低级的种类，因为他们被怀疑会去偷宠物、收买宠物，从宠物寄养所领养被遗弃的宠物。甚或用于动物试验或者产业研究实验室的动物。Buncher:One who collects dogs of unknown origin for sale to laboratories or other bunchers or brokers. Bunchers are considered lower on the evolutionary scale than puppy mill operators, for there is much suspicion that they buy stolen pets, collect pets advertised as "Free to a good home", and adopt unwanted pets from animal shelters for research at veterinary colleges or industrial research laboratories.
“后院”繁殖者一个宠物狗主人的狗狗可能会因为一些意外或其他各种原因进行繁殖。这类人经常不懂犬种的标准、基因遗传、行为特征和健康等问题。这种繁殖者非常容易转变成商业繁殖者或者幼犬繁殖厂（狗厂）！Backyard breeder:A dog owner whose pet either gets bred by accident or who breeds on purpose for a variety of reasons. This breeder is usually ignorant of the breed standard, genetics, behavior, and good health practices. A backyard breeder can very easily become a commercial breeder or a puppy mill.
狗厂这类繁殖者在没有计划的情况下大量“生产”幼犬，他们很少考虑幼犬的安置并且很少关注狗狗的健康和社交训练。也许这种狗厂并不脏，但他们太拥挤了，由于主人没有能力照顾那么多狗，很多狗狗可能受到忽视或虐待。出于更好的销售他们的狗狗的目的，狗厂的经营者们经常会诋毁那些兴趣繁殖者。Puppy mill:A breeder who produces puppies hand over fist with no breeding program, little attention to puppy placement, and poor health and socialization practices. A puppy mill may or may not be dirty but it is usually overcrowded and the dogs may be neglected or abused because the breeder can't properly handle as many dogs as he has. Puppy mill operators often denigrate hobby breeders and their dogs in attempts to make a sale.国内外对狗狗繁殖者划分的对比综合来看，国外对于狗狗繁殖者的分类较为详细，但所有的类型国内都有，只是叫法不一样而已。其中，Hobby breeder更接近于我们国内在CKU协会或NGKC协会注册的高端犬舍。当然Hobby breeder在国内也是极少数的，这其中大部分注册犬舍还是Commercial breeder。至于Buncher，就是在国内人人喊打的狗贩子，而Broker则是正规的“狗贩子”，当然这与宠物店（pet stores）还是有区别的。至于Backyard breeder，则就是我们广大的普通养犬家庭了。而国内批量繁殖狗狗的狗厂，对应国外的是Puppy mill。ABOUT US说你想听的，说别人不敢说的
