The third associated cost results when the heifer doesn't calve in the feedyard and goes to the packer carrying a fetus. The fetus, placenta and fetal fluids can account for 150 lb. of unusable carcass. Smith emphasizes that if the feedyard is selling to the packer on a formula program, dressing percentage is a large factor in the formula, and this will have a dramatic effect on the price paid for that heifer. Not only is this a possible indication of pregnancy, the larger udders themselves have a negative effect on dressing percentage. According to research conducted at Colorado State University and K-State, the economics associated with pregnant feedyard heifers depends on the cattle market.
Heifers are more likely to be bred when coming from situations with dense cattle populations.
Keep them open Feeder-calf suppliers can take precautions to ensure their feedyard customers get open heifers and avoid the costs. He says the first preventive measure is separating heifers from bulls at a reasonable age. We can't avoid that, but we can wean at a reasonable age. The second hint Smith offers is to maintain adequate fences. In operations where heifers can be easily segregated, spaying may not be cost-effective, Smith cautions.