Adenohypophysectomy in the zebra finch

Kazuyoshi Tsutsui, John C. Wingfield, Sarah W. Bottjer

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Castration and replacement of gonadal steroids have been used extensively in order to examine the hormonal regulation of song and sexual behaviors in passerine birds. However, recent studies have reported that levels of gonadal hormones may remain high following castration. In order to circumvent this problem, adenohypophysectomy might be advantageous. In this study we describe a technique for removing the anterior pituitary gland in a small passerine species (the zebra finch, Poephila guttata) using a parapharyngeal approach. The completeness of the adenohypophysectomy in individual male and female birds was examined by measuring gonadal weights as well as plasma levels of luteinizing hormone. The results indicate that this technique can be successfully applied to zebra finches. Removal of the anterior pituitary gland may represent a more effective means than gonadectomy for lowering circulating levels of gonadal hormones.

Original languageEnglish
Pages (from-to)163-173
Number of pages11
JournalGeneral and Comparative Endocrinology
Volume81
Issue number2
DOIs
Publication statusPublished - 1991
Externally publishedYes

Fingerprint

Finches
Gonadal Hormones
anterior pituitary
Anterior Pituitary Gland
Taeniopygia guttata
Equidae
Castration
castration
Birds
hormones
birds
hormonal regulation
sexual behavior
Music
luteinizing hormone
Luteinizing Hormone
Sexual Behavior
animal communication
steroids
Steroids

ASJC Scopus subject areas

  • Endocrinology

Cite this

Adenohypophysectomy in the zebra finch. / Tsutsui, Kazuyoshi; Wingfield, John C.; Bottjer, Sarah W.

In: General and Comparative Endocrinology, Vol. 81, No. 2, 1991, p. 163-173.

Research output: Contribution to journalArticle

Tsutsui, Kazuyoshi ; Wingfield, John C. ; Bottjer, Sarah W. / Adenohypophysectomy in the zebra finch. In: General and Comparative Endocrinology. 1991 ; Vol. 81, No. 2. pp. 163-173.
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