狗营养计算器

科学RER公式全面犬类营养计算器。可计算所有生命阶段的每日卡路里、蛋白质、脂肪。支持AAFCO标准、体重管理目标及食物份量规划。非常适合寻求均衡饮食指导的宠物主人。

Nutrition Calculator
AAFCO Standards
Feeding Guide

Dog Information

kg

Activity & Health Status

Food Information (Optional)

Check your dog food label

AAFCO Nutrient Profiles for Dogs

Nutrient Growth & Reproduction Adult Maintenance Unit
Crude Protein (Min) 22.5% 18.0% % dry matter
Crude Fat (Min) 8.5% 5.5% % dry matter
Calcium (Min) 1.0% 0.5% % dry matter
Phosphorus (Min) 0.8% 0.4% % dry matter
Calcium:Phosphorus Ratio 1:1 to 2:1 1:1 to 2:1 ratio
Linoleic Acid (Min) 1.0% 1.0% % dry matter
Vitamin A (Min) 5000 IU/kg 5000 IU/kg IU/kg
Vitamin D (Min) 500 IU/kg 500 IU/kg IU/kg
Vitamin E (Min) 50 IU/kg 50 IU/kg IU/kg

About AAFCO Standards: The Association of American Feed Control Officials (AAFCO) establishes nutrient profiles that ensure complete and balanced nutrition for dogs at different life stages. Foods meeting these standards are labeled as suitable for "growth and reproduction" (puppies, pregnant/nursing dogs) or "adult maintenance."

Important Notes:

  • All values are expressed on a dry matter basis (moisture removed)
  • Puppy foods must meet the higher "growth and reproduction" standards
  • If a food meets puppy standards, it automatically meets adult standards
  • Large breed puppies have additional calcium restrictions (max 1.8%)

Essential Amino Acids (Minimum Requirements)

Amino Acid Growth & Reproduction Adult Maintenance Unit
Arginine 0.62% 0.51% % dry matter
Histidine 0.22% 0.18% % dry matter
Isoleucine 0.45% 0.37% % dry matter
Leucine 0.72% 0.59% % dry matter
Lysine 0.77% 0.63% % dry matter
Methionine + Cysteine 0.53% 0.43% % dry matter
Phenylalanine + Tyrosine 0.89% 0.73% % dry matter
Threonine 0.58% 0.48% % dry matter
Tryptophan 0.20% 0.16% % dry matter
Valine 0.48% 0.39% % dry matter

Life Stage Feeding Guidelines

Puppy Stage (0-12 months)

  • Energy Needs: 2-3× adult maintenance (rapid growth phase)
  • Protein: Minimum 22.5% (supports muscle development)
  • Fat: Minimum 8.5% (brain development, energy)
  • Feeding Frequency: 3-4 meals/day (0-4 months), 2-3 meals/day (4-12 months)
  • Key Nutrients: DHA for brain development, calcium/phosphorus for bones
  • Special Note: Large breed puppies need controlled calcium (max 1.8%) to prevent skeletal issues

Adult Stage (1-7 years)

  • Energy Needs: 1.6-1.8× RER (maintenance phase)
  • Protein: Minimum 18% (muscle maintenance)
  • Fat: Minimum 5.5% (energy, coat health)
  • Feeding Frequency: 1-2 meals/day
  • Focus: Weight management, dental health, joint support for active dogs

Senior Stage (7+ years)

  • Energy Needs: Reduced by 15-20% (slower metabolism)
  • Protein: 25-30% high-quality protein (prevent muscle loss)
  • Fat: 12-15% (reduced but adequate)
  • Key Additions: Glucosamine/chondroitin (joints), antioxidants (cognitive health), omega-3 (inflammation)
  • Monitor: Kidney function (phosphorus control), weight gain tendency

Pregnant/Nursing Dogs

  • Energy Needs: 3-8× RER (depending on litter size)
  • Protein: 25-30% (fetal development, milk production)
  • Fat: 15-20% (energy-dense nutrition)
  • Feeding Strategy: Free-choice feeding during lactation
  • Supplements: Folic acid, iron, calcium (vet supervised)

Activity Level Multipliers

Activity Level Description Multiplier
Low Indoor dogs, minimal exercise, sedentary lifestyle 1.2-1.4×
Moderate Daily walks (30-60 min), occasional play 1.6-1.8×
High Active dogs, running, agility, frequent play 2.0-2.5×
Very High Working dogs, sled dogs, competitive athletes 3.0-5.0×

Body Condition Scoring Guide

How to assess your dog's body condition:

  • Underweight: Ribs easily visible, no fat cover, obvious waist from above
  • Ideal: Ribs palpable with slight fat cover, visible waist, abdominal tuck
  • Overweight: Ribs difficult to feel, thick fat layer, no visible waist
  • Obese: Ribs not palpable under thick fat, broad back, distended abdomen

Adjustment Strategy: If your dog needs to lose weight, reduce calories by 10-20% and increase exercise. For weight gain, increase calories by 10-15% with high-quality protein.

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关于 狗营养计算器 的常见问题

这个狗营养计算器准确吗?会不会误导我?

绝对不误导。它基于AAFCO(美国饲料管理官员协会)的标准设计,这是全球公认的犬类营养基准。虽然每个品种略有差异,但作为起点非常可靠。如果你不确定自家狗的具体情况,可以先按“成年犬+中等活动量”估算,再逐步优化。

我可以用它来计算猫粮吗?还是只针对狗?

目前只支持狗的营养计算,因为猫和狗的营养需求完全不同(例如猫咪需要牛磺酸,而狗不需要)。不过我们正在开发猫版计算器,预计下季度上线。

为什么有些狗粮标签上的蛋白质百分比看起来很高,但系统提示不足?

这是因为标注通常是“干物质基础”(dry matter basis),而我们计算时也是按这个标准来的。如果你看到狗粮包装写着“粗蛋白≥28%”,那意味着去掉水分之后的实际含量。如果直接拿总重量去算,可能误判为“缺蛋白”。

手机端能用吗?会不会很卡?

完全没问题!响应式设计适配各种屏幕,包括iPhone、华为Mate系列、小米Note等主流机型。加载速度极快,几乎秒出结果,不像某些APP还得等几秒才能跑起来。

这个工具会不会收费?以后会有广告吗?

永远不会!我们坚持做一款真正免费、无广告、无隐私风险的专业级工具。未来即使扩展功能,也会保持透明原则,绝不偷偷加付费项目。