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 Forages of Texas - North Central » Forage Livestock Disorders |
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| DISORDER: | Fog Fever or ABPE (Acute Bovine Pulmonary Emphysema) | ||
| Plant Species: | Bermudagrass | ||
| Causes: | Amino acid - 3-methylindole | ||
| Mode of Action: | L-tryptophan is degraded in the rumen to IAA indole acetic acid, which can be converted to 3-methylindole (3-MI) by some ruminal microbes. 3-MI is absorbed into the bloodstream and is the source of pneumonotoxicity |
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| Animal Symptoms: | Pneumonia-like like symptoms labored breathing and extension of tongue |
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| Conditions: | Occurs on lush green bermudagrass pastures, typically in the fall | ||
| Treatment: | Remove cattle for two weeks, with extreme caution not to cause animals to run and cause labored breathing, as this will result in sudden death | ||
| Prevention: | Feed monensin | ||
| Notes: | More common with mature beef cows, but others are susceptible | ||
| More Disorders: |
| Blister Beetle
| Bloat
| Coumarin
| Fescue Toxicosis
| Fog Fever
| Gossypol Toxicity
| Grass Tetany | | Interstitial Cystitis | Lathyrism | Milk Fever | Nitrate Poisoning | Photosensitization | Prussic Acid | Staggers | |
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