England G C, Allen W E
Department of Surgery and Obstetrics, Royal Veterinary College, North Mymms, Hatfield.
Vet Rec. 1991 Jun 29;128(26):611-2. doi: 10.1136/vr.128.26.611.
The onset of ejaculation and development of normal seminal characteristics in six young dogs vaccinated and seroconverting against canine parvovirus did not differ from the accepted range, and by 45 weeks of age the ejaculates were considered to be normal. At one year of age three of the dogs were given a large antigenic stimulus by vaccination once a week for four weeks; this produced no change in the output or characteristics of spermatozoa.
六只接种犬细小病毒疫苗并产生血清转化的幼犬，其射精开始时间和正常精液特征的发育与公认范围无异，到45周龄时，其精液被认为是正常的。一岁时，其中三只犬每周接种一次，连续四周，给予大剂量抗原刺激；这对精子的产量和特征没有产生影响。
