In today’s competitive and resource-conscious dairy industry, feed efficiency (FE)—or milk performance efficiency—has emerged as a cornerstone for both sustainability and profitability.

What is Feed Efficiency?

Feed Efficiency (FE) is defined as the amount of energy-corrected milk produced per kilogram of dry matter intake (DMI).
In simpler terms, how efficiently is your cow converting feed into milk?

Optimal FE range: 1.4 to 1.8 kg of 4% fat-corrected milk per kg of dry matter consumed.

How is Feed Efficiency Calculated?

The formula for lactating dairy cows is:
FE = ((12.82 × Fat in kg) + (7.13 × Protein in kg) + (0.323 × Milk in kg)) / Dry Matter Intake

Example:

• Milk yield: 24 kg

• DMI: 18 kg

• Fat %: 4%

• Protein %: 3.12%

Calculation:
((12.82 × 24 × 0.04) + (7.13 × 24 × 0.0312) + (0.323 × 24)) / 18 = 1.4

 Tools to Improve Feed Efficiency:

Improving FE is not about feeding more, but feeding smarter. Here’s how:

1. Good Management Practices

• Consistent feeding schedules

• Clean water access

• Cow comfort & health monitoring

2. Feed Additives

• Active Dry Yeast: Enhances rumen function and fiber digestion

• Exogenous Enzymes (NDF-specific): Breaks down fibrous feed components

• Toxin Binders: Reduce mycotoxin risks and improve gut health

• Rumen Protected Amino Acids (RPAA): Especially Methionine & Lysine for protein balance and higher milk yield

Conclusion:

Feed Efficiency = Dairy Farm Profitability Tool
Strategic use of feed additives and sound management can significantly boost both milk yield and return on investment
FE should be tracked regularly for better decision-making and long-term sustainability

Let’s feed better and smarter — for healthier cows, profitable farms, and a sustainable dairy future! ????