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Milk Collection in the Rat Using Capillary Tubes and Estimation of Milk Fat Content by Creamatocrit

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Published on: December 16, 2015

Feed preference in lactating dairy cows for different pellet formulations.

A L Carroll¹, G M Fincham¹, K K Buse¹

¹Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68503.

JDS Communications

|September 2, 2024

Summary

Lactating dairy cows preferred pellets made from alfalfa meal and corn grain over other formulations. Adding flavoring agents did not increase preference for these preferred feed pellets.

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Area of Science:

Animal Science
Dairy Cattle Nutrition
Feed Preference Studies

Background:

Understanding feed preferences is crucial for optimizing dairy cow nutrition and management.
Pelleted feeds are commonly used in dairy rations, but their palatability can vary.
Identifying preferred feed ingredients can enhance feed intake and cow well-being.

Purpose of the Study:

To evaluate the taste preferences of lactating Jersey cows for different pellet formulations.
To determine if flavoring agents can enhance the preference for a base pellet formulation.

Main Methods:

Two experiments were conducted with multiparous lactating Jersey cattle.
Experiment 1: Cows ranked four pellet types (ALFC, ENG, DALF, GMIX) based on preference.
Experiment 2: The most preferred pellet (ALFC) was tested with added flavoring agents (ALFCO, ALFCM, ALFCL).

Main Results:

The pellet composed of alfalfa meal, corn grain, and wheat middlings (ALFC) was the most preferred in both experiments.
ALFC received significantly higher preference rankings and first-choice probabilities compared to other formulations.
Adding oregano, melon, or licorice flavoring agents did not improve preference for the ALFC pellet.

Conclusions:

A feed pellet formulation of alfalfa meal and corn grain bound by wheat middlings is highly preferred by lactating dairy cows.
This preferred pellet can be a valuable tool for feeding strategies, such as rewarding cows in automated milking systems.
Flavoring agents are not necessary to enhance the palatability of this preferred feed pellet.