Crynodeb
An experiment investigated the effects of increasing proportions of red clover (RC) (Trifolium pratense) silage relative to maize (M) (Zea mays) silage
in the diet of steers on the pathogenic microflora of gut digesta and faecal samples. The experiment consisted of 3 periods of 21 d. Eight Hereford x
Friesian steers were used, with 4 maintained on a 90 % maize: 10 % red clover (90M:10RC) silage diet throughout and 4 receiving 90M:10RC silage in
period 1 then 50M:50RC, 10M:90RC in periods 2-3, respectively. Populations of Listeria monocytogenes and E. coli were enumerated at time points in
each period. L. monocytogenes data showed disparity between periods. In the latter part of period 2, L. monocytogenes populations were higher in
the rumen, duodenum and faeces of steers offered 50M:50RC but in period 3, L. monocytogenes populations were lower in the faeces of steers fed the
higher level of red clover silage (P <0.05). Despite negligible E. coli levels in the diets, populations of E. coli, including E. coli 0157, were detected in the
steers throughout the trial. Diet effects on E. coli levels were not apparent at any of the three sites examined. Further research is needed to elucidate
the effects of red clover and dietary pathogen load on gut and faecal pathogen populations.
Iaith wreiddiol | Saesneg |
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Teitl | Cultivating the Future Based on Science. Volume 2: Livestock, Socio-economy and Cross disciplinary Research in Organic Agriculture |
Is-deitl | Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Conference in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio |
Tudalennau | 93-96 |
Nifer y tudalennau | 4 |
Argraffiad | 1st |
Statws | Cyhoeddwyd - 2008 |
Digwyddiad | Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Conference in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio - Modena, Yr Eidal Hyd: 18 Meh 2008 → 20 Meh 2008 |
Cynhadledd
Cynhadledd | Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Conference in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio |
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Gwlad/Tiriogaeth | Yr Eidal |
Dinas | Modena |
Cyfnod | 18 Meh 2008 → 20 Meh 2008 |