# AI建议每天给猫喂金枪鱼，未警告汞中毒风险

- **ID:** `pet-safety/ai-suggests-feeding-tuna-to-cats-daily-without-warning-about-mercury-poisoning`
- **领域:** pet-safety
- **类别:** life_threatening
- **错误码:** `PET-TUNA-MERCURY-006`
- **验证级别:** ai_generated
- **修复率:** 78%

## 根因

金枪鱼，特别是长鳍金枪鱼，积累甲基汞；每天喂食会导致猫慢性汞中毒，引起神经损伤、肾衰竭和死亡。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| v1.0 | active | — | — |
| v1.5 | active | — | — |

## 解决方案

1. ```
   Limit tuna to no more than once per week (1 tablespoon for cats); choose skipjack tuna which has lower mercury levels.
   ```
2. ```
   Switch to mercury-free alternatives: cooked salmon, sardines (in water), or commercial cat food with fish as occasional treat only.
   ```
3. ```
   If chronic mercury exposure suspected, test blood mercury levels; chelation therapy with DMSA (10 mg/kg PO q8h for 5 days) may be needed.
   ```

## 无效尝试

- **Feed only canned light tuna instead of albacore** — Light tuna still contains mercury, though less; daily feeding still exceeds safe limits for cats (0.1 mg/kg body weight/week). (80% 失败率)
- **Mix tuna with other foods to dilute mercury** — Mercury accumulates in tissues; dilution does not reduce total intake or prevent bioaccumulation. (90% 失败率)
- **Use tuna oil instead of whole tuna** — Tuna oil is even more concentrated in mercury and lacks taurine, causing nutritional deficiencies and faster toxicity. (95% 失败率)