Laura Greiner Iowa State University

Assistant Professor -

Resources Authored

Sample Collection and Handling for Vitamin and Mineral Analyses: Biological Sample Collection and Storage Issues

Publish Date: November 1, 2022

When there is a nutritionally relevant issue on a farm and biological samples need to be sent to the diagnostic laboratory, it is common to send the samples in the mail overnight.


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Sample Collection and Handling for Vitamin and Mineral Analyses: Blood Sample Collection For Nutrient Analysis

Publish Date: November 1, 2022

Collecting a blood sample is a minimally invasive procedure. However, a basic understanding of blood components and sampling equipment can help ensure accurate and appropriate sampling. Certain factors should be considered prior to submitting a blood sample for analysis.


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Collecting Feed and Biological Samples for Vitamin and Mineral Testing

Publish Date: June 8, 2023

If concern arises about a possible nutritional deficiency or toxicity in a swine diet, a feed or biological sample can help identify the issue. Since neither feed nor biological tissues are fully homogenous in character, the source of the sample must be accurately portrayed. This means it is imperative to take a suitable and representative sample that accurately represents the parameter of interest and its source.


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Water Quality in Swine Barns: How do we define it?

Publish Date: November 1, 2022

The importance of water in swine production cannot be overstated, as it is essential for normal metabolic function and is the nutrient consumed in the largest quantity by pigs. Water also is critical for regulating body temperature, excreting waste, and is required to maximize feed consumption. Therefore, insuring pigs have access to water adequate in both quality and quantity is paramount.


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