Research Category: Livestock

Nutritional Improvement of Corn Ethanol Co-products via Yeast Engineering

(2016)
University of Minnesota/Bo Hu

Co-products generated from corn ethanol biorefining, for instance, Distiller’s Dried Grains with Solubles (DDGS), are very attractive in animal feeds as partial replacement of some more expensive and traditional feeding materials for energy (corn), protein (soybean meal), and phosphorus (monoor di-calcium phosphate). However, variability in nutrient content and digestibility, especially the lower digestibility of most amino acids compared to corn and soybean meal, has been observed, and extra undigested nutrients are then excreted to the manure,

Read more >

Whole Corn Grain Meal Inclusion in Commercial Shrimp Feeds

(2016)
RALCO Nutrition/Misael Rosales

The world farm production of shrimp in 2014 was 9.02 billion lbs. The estimated world consumption of feed consumed by shrimp farms was 16 – 20 billion lbs. in 2014. Wheat grain and/or by-products (e.g. wheat middlings) levels typically average around 30% of shrimp feeds. Thus, approximately 4.8 billion to 6 billion lbs. of wheat grain and/or by-products were consumed by commercial shrimp feeds in 2014. The world’s shrimp farm production is increasing by over 7%/year with the prediction to reach the size of chicken production in the future.

Read more >

DDGS Feeding Modifies Milk Composition: Investigating Impact on Cheese Quality

(2015)
Iowa State University/Stephanie Clark and Donald Beitz

Clostridium tyrobutyricum are spore-forming and butyric acid-lactate-fermenting bacteria that release large amounts of gas upon fermentation of lactose. Late blowing in cheese is unacceptable to consumers and it reduces the economic value of cheese. Appearance of splits and cracks is due to unwanted gas production during the ripening of Swiss cheese. Dairy farmers suspect feeding DDGS might be a reason for such defects in cheese. With ethanol production being a major industry in the Midwest,

Read more >

Evaluation of Long-Term Reproduction and Lactation Performance of Dairy Heifers Fed Increasing Dietary Concentrations of ReducedFat Distillers Dried Grains in Replacement of Forage During Pubertal Development

(2014)
South Dakota State University/Jill Anderson

This project is an expansion of existing research that is evaluating growth performance, rumen fermentation, total tract digestion, metabolic profile, and onset of puberty of dairy heifers fed three increasing inclusion levels of reduced-fat dried distillers grains (RF-DDGS) in replacement of forage.

In this expansion, another 12 heifers will be added to the original 36 in the experiment, to increase the statistical strength of the study for collection of long-term data. All heifers will finish the study and cease to be fed the treatment diets at approximately 11 months of age,

Read more >

Reduced-Fat Distillers Grains in Finishing Dairy Steer Diets

(2013)
University of Minnesota/Ryan Cox

U.S. feedlots have relied on supplementing their feeder cattle supply by utilizing steers and naturally sterile (Freemartin) heifers derived from the 9 million dairy cows in the U.S. In any given year, approximately 4 million dairy calves are funneled to feedlots and finished at 1,300 to 1,400 lbs. to supply the U.S. with lean, highly marbled, and tender beef cuts and ground beef. As the supply of beef-sourced feeder cattle suffers from a declining beef cow inventory,

Read more >

Evaluation of Growth Performance, Nutrient Utilization, Metabolic Profile, and Onset of Puberty in Dairy Heifers Fed Reduced-Fat Distillers Dried Grains in Replacement of Forage in Limit-Fed Rations

(2013)
South Dakota State University/Jill Anderson

The research will be used to determine how energy and protein from reduced-fat distillers grains is utilized in replacement of energy and protein from forage in limit-feeding scenarios for dairy heifers and the effects on growth, metabolic profile and onset of puberty.

Read more >