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Podcast: Effects of different watering options on standardized ileal digestibility of amino acids and net energy in diets fed to growing pigs.

Dr. Su A Lee, a Postdoctoral Research Associate from the Stein Monogastric Nutrition Lab, explain Effects of different watering options on standardized ileal digestibility of amino acids and net energy in diets fed to growing pigs. Adapted from a presentation in the 2022 ASAS-CSAS Annual Meeting & Trade Show, June 26-30.

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Research Report: Digestibility of amino acids in high protein corn fermented products fed to growing pigs.

New sources of high protein corn co-products have been recently developed and may be included in diets fed to pigs. High protein corn fermented products have been evaluated in several economically important livestock species, but additional information is required with respect to the use of these products in pigs. Therefore, an experiment was conducted to test the hypothesis that the standardized ileal digestibility (SID) of crude protein (CP) and amino acids (AA) in high protein corn fermented products and in the residual distillers dried grains and solubles (DDGS) is greater than in soybean meal (SBM).

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Research Report: Standardized total tract digestibility of phosphorus in three different sources of field peas (Pisum sativum L.) with different particle sizes fed to weanling pigs.

Field peas have been produced mainly for human consumption, but lastly, the industry has been included in diets fed to livestock due to its content of starch and protein. In diets for swine, only peas that are harvested at maturity are used. Almost 80% of P in non-oilseed legumes is bound to phytate, and pigs do not synthesize an adequate amount of endogenous phytate to liberate the P bound to phytate. Therefore, the digestibility of P in field peas is relatively low. Values for apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of P in field peas have been reported, but there are no comparative values for the ATTD and STTD of P among different varieties of field peas at different particle sizes. Therefore, the objective of this experiment was to test the hypothesis that there are no differences in the ATTD and the STTD of P among different sources of field peas fed to young pigs and the second hypothesis was that there is a linear increase in the ATTD and STTD of P as the particle size of field peas increases.

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New publications from the Stein Monogastric Nutrition Laboratory.

Peer-reviewed publications: 

Lee, Su A, H. H. Stein. 2022. Apparent ileal digestibility of amino acids by pigs is not affected by increasing dietary calcium from deficient to excess concentrations, but phosphorus digestibility is reduced. Animal Feed Science and Technology 292 (2022) 115436.
 

Conference proceedings: 

Lee, S. A, and H. H. Stein. 2022. Vitamin D and vitamin D metabolites impact on calcium and phosphorus balance in gestating sows. Proc. 21th Annual Midwest Swine Nutrition Conf. Danville, IN, Sep. 8, 2022. Pages 39-43.

Espinosa, C. D., and H. H. Stein. 2022. Effects of Copper on nutrient utilization in growing pigs. Proc. 21th Annual Midwest Swine Nutrition Conf. Danville, IN, Sep. 8, 2022. Pages 53-57.

Extension reports: 

Oliveira, M. S., and H. H. Stein. 2022. Direct fed microbials increase energy and nutrient digestibility. National Hog Farmer, On-line edition, Sep. 24, 2022.