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ERKEK MERİNOS KUZULARA İMPLANTE EDİLEN ZERANOL'UN GENİTAL ORGANLARA ETKİSİ ÜZERİNE HİSTOPATOLOJİK İNCELEMELER

Year 1990, Volume: 6 Issue: 1, 16 - 22, 01.03.1990

Abstract

Son yıllarda erkek kuzu ve danalarda
daha fazla canlı ağırlık artışı sağlamak amacıyla kullanılan
zeranolün, erkek merinos kuzuların genital organlarında
meydana getirdiği değişikliklerin tespit edilmesi
amaçlanmıştır. Bunun için 12 ± 8 günlük 45 adet erkek
merinos kuzu kullanıldı. Herbiri 15 kuzudan oluşan 3
gruba ayrıldı. 1. gruba 12 mg, ll. gruba 40 gün arayla iki
kez 12 mg zeranol, kulak derisi altına implante edildi.
Geri kalan 15 kuzu kontrol grubu olarak ayrıldı. Her gruptan
5'er adet kuzu implantasyondan 80, 120 ve 160 gün
sonra kesildi.
Zeranal implante edilen kuzularda tubulus saminiferus
çaplarında küçülme, spermatogeneziste gecikme,
epididimislerde interduktal bağ dokuda artış, adenomiyozis,
hiperplazi ve intraepitelyal lumina oluşumları, prestat
ve gl. bulbouretralislerinde skuamöz metaplazi, bazı
bezlerde kistik dilatasyon ve keratinizasyon, interalveolar
bağ dokuda artış ve hiperplazi, gl. vezikülozalarında ise
alveolar yapıda azalma, interalveoler bağ doku artışı, alveolierde
kistik dilatasyon tespit edildi.
Testislerdeki değişikliklerin revarzibi olmasına
karşın epididimis, prostat, gl. bulbouretralis ve gl.
vezikülozadakilerin irreverzibl olduğu saptandı. Bu nedenle
zeranal implante edilen kuzularda cinsel yetersizliklerin
olabilceği, böylece bu hayvanların damızlık olarak
kullanılmasının sakıncalı o!abilceği düşünüldü.

Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs

Year 1990, Volume: 6 Issue: 1, 16 - 22, 01.03.1990

Abstract

Zeranal has been used as anabolic
agent in cattle and sheep, especially in recent years.
The purpose of this study was to determine the effects of
zeranal on the development and histopathological changes
of reproductive organs of male merino lambs implanted
with zeranaL
In this trial, tourty-five m ale merino lambs at 126 ±
8 days of age were used. These lambs were divided into
three groups. Each group consisted of 15 animals.
Group 1 and group ll were implanted with 12 mg zeranal
subcutaneously the base of ear of lambs at the baginning
of trials. After that, the same dose of zeranal was
reimplanted to group ll 40 days after first implantation.
The remaining 15 lambs were used as a control group.
Five lambs from each groups were slaughtered at 80,
i 20 and 160 day s atter the trial.
The implantation of zeranal to the lambs induced
histopathological changes in the genital tract, which included;
reduced seminiferous tubular diameter, delayed
spermatogenesis in the testes; increased interductal
connective tissue, adenomyosis, hyperplasia and intraepithelial
lumina in the epididymides; squamous metaplasia,
cystic dilatation of same acini, keratinisation, hyperplasia
and increase in connective tissue in the prestat and
bulbourethral gland; reduced alveolar development and
an increase in connective tissue, alveoler cystic dilatation
in vesicular gland.
lt may be concluded that zeranal induced changes
in the testes was reversible, whereas changes in
epididymides, prostat, bulbourethral and vesiculer gland
were irreversible. For this reason, zeranal implanted
lambs should not be used for breeding purpose.

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Details

Other ID JA74DH33CS
Journal Section Research
Authors

M. Kemal Çiftçi This is me

Metin Münir Kıran This is me

Publication Date March 1, 1990
Published in Issue Year 1990 Volume: 6 Issue: 1

Cite

APA Çiftçi, M. K., & Kıran, M. M. (1990). Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs. Eurasian Journal of Veterinary Sciences, 6(1), 16-22.
AMA Çiftçi MK, Kıran MM. Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs. Eurasian J Vet Sci. March 1990;6(1):16-22.
Chicago Çiftçi, M. Kemal, and Metin Münir Kıran. “Histopathological Studies Upon Effects of Zeranol on the Reproductive System in Male Merino Lambs”. Eurasian Journal of Veterinary Sciences 6, no. 1 (March 1990): 16-22.
EndNote Çiftçi MK, Kıran MM (March 1, 1990) Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs. Eurasian Journal of Veterinary Sciences 6 1 16–22.
IEEE M. K. Çiftçi and M. M. Kıran, “Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs”, Eurasian J Vet Sci, vol. 6, no. 1, pp. 16–22, 1990.
ISNAD Çiftçi, M. Kemal - Kıran, Metin Münir. “Histopathological Studies Upon Effects of Zeranol on the Reproductive System in Male Merino Lambs”. Eurasian Journal of Veterinary Sciences 6/1 (March 1990), 16-22.
JAMA Çiftçi MK, Kıran MM. Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs. Eurasian J Vet Sci. 1990;6:16–22.
MLA Çiftçi, M. Kemal and Metin Münir Kıran. “Histopathological Studies Upon Effects of Zeranol on the Reproductive System in Male Merino Lambs”. Eurasian Journal of Veterinary Sciences, vol. 6, no. 1, 1990, pp. 16-22.
Vancouver Çiftçi MK, Kıran MM. Histopathological studies upon effects of zeranol on the reproductive system in male merino lambs. Eurasian J Vet Sci. 1990;6(1):16-22.