Amorphus globosus foetuses in Polish Holstein cattle: anatomical, histological, and genetic studies

Author:

Gehrke Marek1,Blaszak Beata2,Stachowiak Monika3,Szczerbal Izabela3,Stefańska Barbara4,Jaśkowski Jędrzej M.1,Nowak Włodzimierz4,Świtoński Marek3

Affiliation:

1. Centre for Veterinary Sciences at the Nicolaus Copernicus University , 87-100 Toruń , Poland

2. Department of Tumour Pathology, Greater Poland Cancer Centre , 61-866 Poznań , Poland

3. Department of Genetics and Animal Breeding , Poznań , Poland

4. Department of Animal Nutrition and Feed Management, Faculty of Veterinary Medicine and Animal Sciences, Poznań University of Life Sciences , 60-637 Poznań , Poland

Abstract

Abstract Introduction A comprehensive description is presented of four novel cases ofamorphus globosus (ag) foetuses originating from multiple pregnancies of Polish Holstein cows. Material and Methods Four amorphic foetuses were delivered by three cows. Tissue samples were collected during autopsy, embedded in paraffin, sectioned, and stained with haematoxylin and eosin. Genomic DNA was isolated from tissue samples of abnormal foetuses and from blood leukocytes of their healthy siblings. PCR reactions were used to reveal the presence of Y-linked genes (SRY and AMELY) and an X-linked gene (AMELX). Results All foetuses were classified to the groupholoacardius amorphous (anideus). Molecular analysis clearly showed that at 17 microsatellite loci, the studied amorphous foetuses had identical genotypes to the viable co-twins. Conclusion Foetuses had monozygotic origin. Histological analysis showed a low level of development of tissues of meso- and ectodermal origin, as well as features of degrading patterns.

Publisher

Walter de Gruyter GmbH

Subject

General Veterinary

Reference26 articles.

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