Five Cases of Defective Calves with Chromosomal Anomaly in Japanese Black Breed
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- SAITO Miki
- Faculty of Agriculture, Kagoshima University
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- ONAKA Mio
- Faculty of Agriculture, Kagoshima University
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- KAMIMURA Syunichi
- Faculty of Agriculture, Kagoshima University
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- HAMANA Katsumi
- Faculty of Agriculture, Kagoshima University
Bibliographic Information
- Other Title
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- 黒毛和種先天異常子牛5例に認められた染色体異常
- クロゲワシュ センテン イジョウ コウシ 5レイ ニ ミトメラレタ センショク
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Abstract
Chromosomal anomalies were found in 5 cases of Japanese Black calves with congenital defects. Case 1 had complicated defects of atresia ani, recto-vaginal fistula and fused kidney. Chromosome studies showed structural anomalies such as isochromatid gap, chromatid gap, chromatid break and fragment in 77% of the cells examined. These anomalies were also found in 3 to 16% of the cells from her maternal grand mother, dam and sire. Case 2 had dupulicated uterus and umbilical inflammation. Chromosome studies showed chromatid gap and autosomal trisomy. Case 3, 4, and 5 had atresia ani, prolonged gestation and rib fracture, and umbilical hernia and short mandible, respectively. Each of them showed autosomal trisomy. As the maternal age at parturition of these 5 calves were 8 to 14 years, its high age may be a contributing factor for these chromosomal anomalies.
Journal
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- Journal of the Japan Veterinary Medical Association
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Journal of the Japan Veterinary Medical Association 48 (11), 848-851, 1995
Japan Veterinary Medical Association
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Details 詳細情報について
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- CRID
- 1390282679685020544
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- NII Article ID
- 10018942849
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- NII Book ID
- AN00191857
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- ISSN
- 21860211
- 04466454
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- NDL BIB ID
- 3644090
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed