Histological observations in testes of hybrids of Gallus gallus x Phasianuns colchicus
Authors: Castillo, Annelisse; Marzoni, Margherita; Pirone, Andrea; Romboli, Isabella
Source: Avian Biology Research, Volume 5, Number 1, February 2012 , pp. 21-30(10)
Publisher: Science Reviews 2000 Ltd
Abstract:This study performed a histological and morphometric investigation of testes in Gallus gallus x Phasianus colchicus hybrids during the seasonal reproductive period of pheasants. The trial was conducted on seven 4-year old birds originated from the mating between New Hampshire cocks and female common pheasants. After sacrifice, testes were removed, macroscopically evaluated and routinely processed for light microscopic investigations. Mean testis weight was 0.85 g and a great variability was observed between birds. Only one bird out of seven developed heavier testes each weighing almost 3 g. Relative volume occupied by seminiferous tubules was 75%. Approximately 39 m of seminiferous tubules were found per testis and around 96 m per gram of testis. A high correlation was observed between the number of Sertoli cells and germ cells with testis weight. Seminiferous epithelium comprised Sertoli cells and germ cells at different stages of development. Three birds presented tubules with a multilayered epithelium and germ cells developed until the stage of round spermatids. Surprisingly, one bird presented some elongated forms as well.
Document Type: Research article
Publication date: 2012-02-01
Avian Biology Research, formerly Avian & Poultry Biology Reviews, has adopted a new and exciting vision for publication of ornithological research in the 21st Century.
This vision is based on two main concepts. First, the topics published by the journal will cover all aspects of ornithology. This will provide a forum for scientists to publish their work in a journal that will have a broad appeal. Second, the scope of the journal will expand to include reports of original research, letters, perspectives, news, diary and book reviews in addition to reviews. By considering a wide range of research fields for publication, Avian Biology Research provides a forum for people working in every field of ornithology.
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