Rye and rye bran as components of diets in piglet production : effects on Salmonella Prevalence

The nutritional benefits of rye (and therefore rye bran) are mainly due to its high content of fermentable dietary fiber, the non-starch polysaccharides (NSP). Microorganisms in the large intestine are able to convert these into short-chain fatty acids (SCFA), including butyrate. Butyrate strengthens the epithelial barrier function in the colon by nourishing the enterocytes and inhibiting the spread of Salmonella in the intestinal tract. Therefore, the aim of this study was to test under field conditions whether a diet with rye or rye bran as the main ingredient for gilts, sows, and weaned piglets is associated with a lower Salmonella prevalence. Depending on the age groups, between 20-30% rye or between 15-20% rye bran was used in the experimental group. A total of n = 1983 boot swabs, n = 356 fecal samples, and n = 1909 serum samples were examined. The results of this study show that rye or rye bran at the levels used had no apparent effect on the number of positive Salmonella samples. However, the Salmonella OD values in the experimental groups were significantly lower than in the control group. This suggests that the use of rye leads to a lower incidence of infection, but this effect could not be proven from swabs.

Subjects

Salmonella

pigs

sows

pre-harvest

foodborne pathogen

epidemiology

rye

rye bran

animal nutrition

livestock

DDC Class

570: Life Sciences, Biology

Funding Organisations

BMEL

Lizenz

https://creativecommons.org/licenses/by/4.0/

Publication version

publishedVersion

Name

animals-13-02262-v2.pdf

Type

Main Article

Size

2.76 MB

Format

Adobe PDF

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Rye and rye bran as components of diets in piglet production : effects on Salmonella Prevalence