Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens
In the egg industry, common reproductive disorders, such as internal laying and egg-bound syndrome, not only reduce egg productivity but also cause deaths in severe cases. In this study, we focused on the oviduct histology of the pathogenesis of internal laying and egg-bound syndrome. We divided the...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Veterinary Sciences |
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| Online Access: | https://www.mdpi.com/2306-7381/10/4/260 |
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| author | Marina Hosotani Sohei Hamano Tomohito Iwasaki Yasuhiro Hasegawa Hiromi Ueda Takafumi Watanabe |
| author_facet | Marina Hosotani Sohei Hamano Tomohito Iwasaki Yasuhiro Hasegawa Hiromi Ueda Takafumi Watanabe |
| author_sort | Marina Hosotani |
| collection | DOAJ |
| description | In the egg industry, common reproductive disorders, such as internal laying and egg-bound syndrome, not only reduce egg productivity but also cause deaths in severe cases. In this study, we focused on the oviduct histology of the pathogenesis of internal laying and egg-bound syndrome. We divided the aged laying hens into four groups according to the observation of the abdominal cavity and oviductal lumen: healthy, internal laying, egg-bound, and intercurrent. The percentages of healthy, internal laying, egg-bound, and intercurrent groups were 55%, 17.5%, 15%, and 12.5%, respectively. In all parts of the oviduct (i.e., infundibulum, magnum, isthmus, and uterus), the oviductal epithelium was composed of ciliated epithelial cells and secretory cells. The epithelial region lacking cilia was larger in the entire oviduct of the internal laying, and intercurrent groups than in the healthy group. In the internal laying, egg-bound, and intercurrent groups, significant T-cell infiltration was observed in the lamina propria of the entire oviduct. The morphological alteration of ciliated epithelial cells in the oviducts caused by inflammation may be the underlying cause of the pathogenesis of internal laying and egg-bound syndrome. |
| first_indexed | 2024-03-11T04:27:07Z |
| format | Article |
| id | doaj.art-5ebc8674cccc471bba4981d06cdbc592 |
| institution | Directory Open Access Journal |
| issn | 2306-7381 |
| language | English |
| last_indexed | 2024-03-11T04:27:07Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Veterinary Sciences |
| spelling | doaj.art-5ebc8674cccc471bba4981d06cdbc5922023-11-17T21:43:25ZengMDPI AGVeterinary Sciences2306-73812023-03-0110426010.3390/vetsci10040260Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying HensMarina Hosotani0Sohei Hamano1Tomohito Iwasaki2Yasuhiro Hasegawa3Hiromi Ueda4Takafumi Watanabe5Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Hokkaido, JapanLaboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Hokkaido, JapanDepartment of Food Science and Human Wellness, College of Agriculture, Food and Environment Science, Rakuno Gakuen University, Ebetsu 069-8501, Hokakido, JapanDepartment of Food Science and Human Wellness, College of Agriculture, Food and Environment Science, Rakuno Gakuen University, Ebetsu 069-8501, Hokakido, JapanLaboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Hokkaido, JapanLaboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Hokkaido, JapanIn the egg industry, common reproductive disorders, such as internal laying and egg-bound syndrome, not only reduce egg productivity but also cause deaths in severe cases. In this study, we focused on the oviduct histology of the pathogenesis of internal laying and egg-bound syndrome. We divided the aged laying hens into four groups according to the observation of the abdominal cavity and oviductal lumen: healthy, internal laying, egg-bound, and intercurrent. The percentages of healthy, internal laying, egg-bound, and intercurrent groups were 55%, 17.5%, 15%, and 12.5%, respectively. In all parts of the oviduct (i.e., infundibulum, magnum, isthmus, and uterus), the oviductal epithelium was composed of ciliated epithelial cells and secretory cells. The epithelial region lacking cilia was larger in the entire oviduct of the internal laying, and intercurrent groups than in the healthy group. In the internal laying, egg-bound, and intercurrent groups, significant T-cell infiltration was observed in the lamina propria of the entire oviduct. The morphological alteration of ciliated epithelial cells in the oviducts caused by inflammation may be the underlying cause of the pathogenesis of internal laying and egg-bound syndrome.https://www.mdpi.com/2306-7381/10/4/260ciliachickenegg-bound syndromehistologyinternal layingoviduct |
| spellingShingle | Marina Hosotani Sohei Hamano Tomohito Iwasaki Yasuhiro Hasegawa Hiromi Ueda Takafumi Watanabe Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens Veterinary Sciences cilia chicken egg-bound syndrome histology internal laying oviduct |
| title | Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens |
| title_full | Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens |
| title_fullStr | Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens |
| title_full_unstemmed | Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens |
| title_short | Oviduct Histopathology of Internal Laying and Egg-Bound Syndrome in Laying Hens |
| title_sort | oviduct histopathology of internal laying and egg bound syndrome in laying hens |
| topic | cilia chicken egg-bound syndrome histology internal laying oviduct |
| url | https://www.mdpi.com/2306-7381/10/4/260 |
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