Zebrafish Health and Welfare Glossary - Welfare Terms, Abdomen
ABDOMEN
Parameter | Welfare Indicators | Sub Category | Synonyms | Definitions | Severity Score | Picture |
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Anus | Bleeding |
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| Presence of considerable blood in stools or from anus |
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Scales / Skin | Lesion |
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| Open - Abrasion |
| Damage to the skin consisting of loss of the epidermis and portions of the dermis but not the complete thickness of the skin | Mild: *No more than 10% of body Moderate: Covering not more than 20% of body Severe: Covering more than 20% of body, open
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| Open - Incision |
| A wound created by a sharp object. Edges are smooth and trauma to surrounding tissue is minimal. | Mild: *No more than 10% of body Moderate: Covering not more than 20% of body Severe: Covering more than 20% of body, open |
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| Open - Laceration |
| An irregular wound created by tearing of tissue. Damage to both superficial and underlying tissue is variable. | Mild: *No more than 10% of body Moderate: Covering not more than 20% of body Severe: Covering more than 20% of body, open |
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| Open - Puncture |
| A penetrating wound cause by pointed object | Mild: *No more than 10% of body Moderate: Covering not more than 20% of body Severe: Covering more than 20% of body, open |
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| Closed - Contusion |
| Damage of the skin and/or underlying structures without breaking the skin e.g. Bruising, crush | Mild: *No more than 10% of body Moderate: Covering not more than 20% of body Severe: Covering more than 20% of body |
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Skin | Swelling Under Skin |
| Masses, Raised Areas, Lumps | Abnormal appearance of masses or all descriptions (hard, soft, different shapes etc.) | Mild: 1 mass under the skin which is not affecting natural behaviour Moderate: Multiple massess under the skin which is not affecting natural behaviour Severe: Multiple masses under the skin and natural behaviour affected
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General | Oedema |
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| An excessive accumulation of fluid in tissue spaces or a body cavity. | Mild: *Oedema - low level and highly localised fluid accumulation in tissue Moderate: Oedema - increased fluid accumulation in one or many tissues Severe: Oedema - high fluid accumulation in one or multiple tissues |
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General | Distended |
| Enlarged | Abdomen appears curved outward or swollen | Mild: Abdomen marginally distended Moderate: Abdomen distended and reddening Severe: Abdomen distended, reddened, unable to maintain skilful and effective interaction of movements and maintenance of equilibrium | |
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| Soft | Fluidy | Abdomen feels soft and fluid to touch |
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| Hard | Solid | Abdomen feels hard to touch |
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Anus | Faeces staying on fish |
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| Faeces hanging from anus for an extended period of time |
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