Anatomical, cytogenetic and behavioural studies of freemartin ewes

@article{Smith2000AnatomicalCA,
  title={Anatomical, cytogenetic and behavioural studies of freemartin ewes},
  author={K. C. Smith and Timothy J. Parkinson and Susan E. Long and Frances J. Barr},
  journal={Veterinary Record},
  year={2000},
  volume={146},
  pages={574 - 578}
}
The external phenotype and reproductive behaviour of 21 freemartin sheep and two male pseudohermaphrodite sheep were recorded with the aim of identifying any characteristics which might be used to predict a failure to breed. The size and shape of the vulva and clitoris, the length of the vagina, the size of the teats, the presence or absence of inguinal gonads, and the ultrasonographic characteristics of the inguinal gonads were recorded. A subjective assessment of the masculinity of each… 
Clinical and cytogenetic studies in intersex ewes
TLDR
Nine Sarda x Lacaune ewes with intersexual characteristics and an infertility condition at the reproductive anamnesis were analysed and the diagnosis of freemartinism was confirmed for seven out of the nine subjects.
Abnormal position of lymph nodes in a freemartin sheep.
TLDR
This is the first time, to the best of the authors' knowledge, that a case has been reported where lymph nodes have been found inside the scrotal sacs, and it is possible that these were the inguinal lymph nodes, trapped inside theScrotum during fetal growth and development.
Morphological, histological and histochemical studies of the gonads of ovine freemartins
TLDR
The gonads of the male-type freemartins stained immunocytochemically for 3β-hydroxysteroid dehydrogenase (3β-HSD) and histochemicalically for alkaline phosphatase (AP) in a similar way to, but more extensively and intensely than, the gonad of normal rams, and the staining was confined to interstitial cell-like structures.
The freemartin syndrome: an update.
  • A. Padula
  • Biology
    Animal reproduction science
  • 2005
Freemartinism: Three Cases in Goats
TLDR
A molecular and cytogenetic analysis of three cases of caprine freemartinism in goats revealed that all three animals had the SRY gene linked with the Y chromosome, which can create a basis for wider characterisation of this syndrome in the domestic goat.
Masculinization of the Distal Tubular and External Genitalia in Female Sheep With Prenatal Androgen Exposure
TLDR
Results show that prenatal exposure of female sheep to exogenous androgens results in masculinization of the tubular and external genitalia.
GENOTYPING OF PSEUDOHERMAPHRODITE POLAR BEARS IN NUNAVUT AND ADVANCES IN DNA SEXING TECHNIQUES
TLDR
Ten of 11 morphologically abnormal individuals may possess no genuine male-specific DNA and nongenetic mechanisms such as maternal tumors, freemartinism, or endocrinological effects of environmental contaminants may also influence the development of the female pseudohermaphrodite phenotype in Nunavut polar bears.
Classical and Molecular Cytogenetics of Disorders of Sex Development in Domestic Animals
TLDR
An overview of the biology of mammalian sex development as a scientific background for better understanding the body of knowledge of the clinical cytogenetics of disorders of sex development in domestic animals is presented.
Validation of fetal microchimerism after pregnancy in the ovine using qPCR.
TLDR
Fetal microchimerism in soft maternal tissues is possible in sheep and may remain after pregnancy has ended, and XY chimerism in maternal tissues of the ewe and its potential role in ovine physiology is suggested.
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References

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TLDR
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TLDR
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TLDR
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TLDR
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