Feeding for Butterfat

Mar 04, 2022

Dairy Cow

Palmitic Acid Sensitivity Analysis

This sensitivity analysis considers the portion of palmitic acid fed as a dietary supplement that ends up as butterfat and energy for body utilization.  It assumes that:

  • A portion of the palmitic acid fed ends up in milk fat with a transfer efficiency declining as supplemented fat levels are increased (based on a summary of 12 studies feeding palmitic acid).
  • The pool of absorbed palmitic acid not incorporated in milk fat ends up being used in the body as an energy source. An average economic value of NEL was used based on a Sesame analysis of nutrient costs (averaged across US at US$ 0.12/Mcal of NEL).
  • This analysis considers an average herd feeding a one group TMR. Fat response varies by lactation stage, parity, and level of production. These factors are not incorporated in this analysis. We can give a more precise recommendation if provided with more details of the herd and the goals to be accomplished.
  • Other nutrition and management factors do affect butterfat production. Potential interactions between these factors and fat supplementation are not accounted for in this analysis.
  • Fat supplement prices are trending higher. Average prices across the US are currently hovering around US$ 2000/ton for palmitic acid-enriched supplements. We estimated return over investment (ROI) for additional palmitic acid fed considering palmitic acid supplement prices at either US$ 2,000 or US$ 2,300/ton.
  • We considered the digestibility of the palmitic acid supplements when determining the response to absorbed palmitic acid because the digestibility across different supplements varies and is an important factor. Please check the digestibility of a given supplement with its supplier. Digestibility values in most current nutrition softwares are generally not up to date.
  • Because of the upward trend in butterfat price and its volatility, we considered butterfat prices varying from U$$ 1.80 to 3.00/lb.
  • The 2 graphs below are the results of ROI calculation with the assumptions described above.

Jonas De Souze

Perdue Agribusiness

Latest Posts

Aug 29, 2023
Every day is a great day to be in the beef business and this year has proved to be another excellent year in the cow/calf   and feedlot sectors of beef production. 
Aug 29, 2023
I hope you all had a fantastic August. Although we had a few days of hot weather toward the end of the month, cooler days are coming. It’s less than 120 days until winter. Soon we’ll be digging out the warm clothing and finding our boots to prepare for the colder weather that is surely on its way. If you haven’t locked in your propane supply but would still like to, please call your local Premier Energy office to see if the lock in price has changed.
Aug 29, 2023

I hope everyone had the chance to enjoy the Independence Day holiday with family and friends. Thanks to all of you who called in your orders early so our staff could adjust to the mid-week holiday and help minimize the added pressure that the short work week brings. I’d also like to thank all of you who returned your propane contracts by the end of June. With a short window of when contracts are mailed to when they are due back, we really appreciate your patience and support. If reading this reminded you that your contract is still sitting on the kitchen table, just pick up the phone and call the energy office nearest to you. I’m sure we’ll be able to take care of you. The last of the propane contracts (Cap renewals) and safety mailings will be sent out later this month. On behalf of our energy team and everyone at your cooperative, thank you for choosing us to serve your propane needs again this year.