骡鸭（番鸭×卡其坎贝尔鸭）的睾酮浓度、睾丸重量及形态

Testosterone concentrations, testes weight and morphology of mule drakes (Muscovy drake x Khaki Campbell).

Snapir N, Rulf J, Meltzer A, Gvaryahu G, Rozenboim I, Robinzon B

Department of Animal Science, Faculty of Agriculture, Hebrew University of Jerusalem, Israel.

Br Poult Sci. 1998 Sep;39(4):572-4. doi: 10.1080/00071669888791.

Abstract

Mule ducks were produced by naturally mating Muscovy drakes and Khaki Campbell ducks. 2. Semen was collected from 6-month-old mule drakes via an artificial vagina. The fluid was clear without any spermatozoa or spermatids. 3. Testes from 27-week-old mule drakes were smaller in size than those of Khaki Campbell drakes but heavier than Muscovy males of the same age. Histological sections of these testes revealed that spermatogenesis was not complete. 4. Testosterone concentration in the mule drakes was higher than in Muscovy males but similar to Khaki Campbell drakes. 5. Mule drakes have strong sexual drives as a result of high concentrations of testosterone, but, because spermatogenesis is incomplete, their semen had no sperm.

摘要

骡鸭是由番鸭公鸭与卡其坎贝尔鸭自然交配产生的。2. 通过人工阴道从6月龄的骡鸭公鸭采集精液。精液呈清澈状，未发现任何精子或精细胞。3. 27周龄骡鸭公鸭的睾丸体积比卡其坎贝尔公鸭的小，但比同龄番鸭公鸭的重。这些睾丸的组织学切片显示精子发生不完全。4. 骡鸭公鸭体内的睾酮浓度高于番鸭公鸭，但与卡其坎贝尔公鸭相似。5. 由于睾酮浓度高，骡鸭公鸭有强烈的性欲，但由于精子发生不完全，它们的精液中没有精子。