Cattle Weight Gain and Feed Conversion Calculator

Introduction

What This Calculator Does

Step-by-Step Example

Real-World Use Cases

Comparison

Common Mistakes to Avoid

• Using unrealistic ADG assumptions based on best-case performance. Stocker cattle on summer grass typically gain 2.0 to 2.5 lbs/day under good conditions, not the 3.0 lbs seen in research trials with optimal forages and high supplement rates. Overestimating ADG leads to longer feeding periods, higher costs per head, and a breakeven price that was never achievable.

• Ignoring the price slide. Heavier cattle sell for less per pound than lighter cattle. A 550-lb calf at $2.10/lb becomes an 850-lb feeder at $1.78/lb and a 1,050-lb fat steer at $1.55/lb. Each stage of feeding competes against a lower price at sale. The value of gain (what you earn per pound added) decreases as the animal gets heavier, and at some point additional days on feed destroy value.

• Not budgeting for death loss. Industry average death loss is 1% to 2.5% for stocker cattle, depending on health at purchase, stress during transportation, and management. A 2% death loss on 100 head at $1,260 each means $2,520 in losses that must be spread across the surviving 98 head, adding $25.71 to each head's actual cost.

• Forgetting interest on the cattle investment. The purchase cost of cattle is working capital tied up for the entire feeding period. At 7.5% annual interest on $1,260/head for 122 days, the interest cost is $31.56/head. Over 60 head, that is $1,894 in financing cost that reduces profit.

• Not tracking actual performance against projections mid-period. Weight checks at 30 to 45 day intervals allow you to identify underperforming groups early, adjust rations or management, and revise marketing timing before the gap between projected and actual performance becomes too large to recover.

Frequently Asked Questions