Effect of soy on faecal dry matter content and excretion of Brachyspira hyodysenteriae in pigs.

Grahofer, Alexander; Overesch, Gudrun; Nathues, Heiko; Zeeh, Friederike (2016). Effect of soy on faecal dry matter content and excretion of Brachyspira hyodysenteriae in pigs. Veterinary record open, 3(1), e000159. BMJ Publishing Group 10.1136/vetreco-2015-000159

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The aim of this study was to investigate the effect of a soy diet on the excretion of Brachyspira hyodysenteriae in five farms with subclinically infected pigs. The effects on general health, faecal consistency and dry matter were analysed. In total, 200 pigs of different ages (group 1 <100 days of age (n=120) and group 2 ≥100 days (n=80)) were randomly assigned to the control (C) and the treatment (T) groups. Group C received the farm's standard diet. In group T half of the daily feed ration was replaced by pure soy on two consecutive days. Faecal scores were used to determine faecal consistency and a microwave method to assess faecal dry matter content (FDMC). In age group 1, soy feeding resulted in a statistically significant decrease of the FDMC of 2.5 per cent compared with group C and in age group 2 in a significant increase of 2.2 per cent compared with group C at day 2. Overall seven (T: 5, C: 2) out of 597 faecal samples tested positive for B hyodysenteriae by PCR. In conclusion, a high soy diet applied over two days influenced the faecal consistency and the FDMC in growers, finishers and sows under field conditions. Further investigations with more sensitive diagnostic methods are needed to prove a potential influence of a high soy diet on the detection rate of B hyodysenteriae in subclinically infected herds.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Swine Clinic
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology

UniBE Contributor:

Grahofer, Alexander; Overesch, Gudrun; Nathues, Heiko and Zeeh, Friederike

Subjects:

600 Technology > 630 Agriculture
600 Technology > 610 Medicine & health

ISSN:

2052-6113

Publisher:

BMJ Publishing Group

Language:

English

Submitter:

Jeannette Glauser

Date Deposited:

11 Jul 2016 10:49

Last Modified:

11 Jul 2016 10:49

Publisher DOI:

10.1136/vetreco-2015-000159

PubMed ID:

27239320

Uncontrolled Keywords:

Bacterial diseases; Diagnostics; Enteric disease; Nutrition; Pigs; Spirochaetes

BORIS DOI:

10.7892/boris.84179

URI:

https://boris.unibe.ch/id/eprint/84179

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