Michigan State University Animal Science Undergraduate Research Student Association Presents th

The 7 Annual Animal Science Undergraduate Research Forum Book of Abstracts April 22nd, 2016 #1310 Anthony hall

About ASURSA The Animal Science Undergraduate Research Student Association was formed as an organization to connect both Animal Science students and faculty in undergraduate research. During the past six years, ASURSA has grown from less than ten members to now more than forty and have organized several events with the goal of connecting students and faculty. As undergraduate research within the department continues to grow, ASURSA will continue to cultivate a passion for research within the Michigan State University student body.

Mission Statement The purpose of this organization shall be to share knowledge of the research process, to gain practical skills for research and to provide a networking opportunity for students as they continue with their education. We hope to cultivate a passion for research within the Michigan State University student body, expose students to a broad range of skills that will help them to succeed in re-search, and help students form connections with other students and faculty.

Thank you to the MSU Animal Science Department for all of their support and to ASURSA members for their help in the 7th Annual ASURF.

ASURF SCHEDULE Dr. Swanson

9:10 AM

Departmental Address

9:30 AM

Marin Western

9:55 AM

Hannah Dewald

10:20 AM

Serenity Tyll

10:45 AM

Lindsay Hannah

11:10 AM

Wilhelmina deBoer

Lunch Break 12:00 PM

Emily Sechrist

12:25 PM

Jordan Guy

12:50 PM

Katelyn Gutwein

1:30 PM

Awards Ceremony

Marin Western

From: Croswell, MI Future Plans: Graduate school for Dairy Nutrition Favorite Species: Dairy What was your favorite part of your research project? Seeing the project progress from the sampling to processing the samples in the lab to see the results.

Academic Advisor/PI: Dr. Adam L. Lock Area of Research Interest: Ruminant Lipid Metabolism

Milk Production Responses to Palmitic Acid Supplementation when Fed as Fatty Acids or Triglycerides Marin M. Western, Jonas de Souza and Adam L. Lock Michigan State University, East Lansing, MI We evaluated the effects of feeding a palmitic acid-enriched supplement (PA; 85% C16:0) either as fatty acids (FA) or triglycerides (TG) on production responses of mid-lactation dairy cows. Fifteen Holstein cows (137±49 DIM) were randomly assigned to treatment sequence in a 3×3 Latin square design. Treatments were a control diet (CON; no added PA), or 1.5% of FA added either as a FA supplement (PA-FA), or a TG supplement (PATG). PA replaced soyhulls and diets were balanced for glycerol content. Diets contained (% DM) 21% forage NDF, 17% CP, and 26% starch. Periods were 21 d in length with the final 5 d used for sample and data collection. The statistical model included the random effect of cow and the fixed effect of treatment, period and interaction between treatment and period. Two preplanned contrasts were used to evaluate: 1) the overall effect of PA treatments [CON vs. PA; 1/2 (PA-FA + PA-TG)]; and 2) the effect of PA as a FA or triglyceride supplement (PA-FA vs. PA-TG). PA treatments increased milk fat content (3.60 vs. 3.41%; P