|
|
|
|
|
| Kijlstra, Prof.Dr. Aize; Meerburg, Dr. Bastiaan; Cornelissen, Jan; De Craeye, Ste´phane; Vereijken, Pieter; Jongert, Dr. Erik. |
| Inadequate rodent control is considered to play a role in Toxoplasma gondii infection of pigs. This issue was addressed in the current study by combining a 4-month rodent control campaign and a 7-month longitudinal analysis of T. gondii seroprevalence in slaughter pigs. Three organic pig farms with known rodent infestation were included in the study. On these farms, presence of T. gondii in trapped rodents was evaluated by real-time PCR. All rodent species and shrews investigated had T. gondii DNA in brain or heart tissue. Prevalence was 10.3% in Rattus norvegicus, 6.5% in Mus musculus, 14.3% in Apodemus sylvaticus and 13.6% in Crocidura russula. Initial T. gondii seroprevalence in the slaughter pigs ranged between 8% and 17% and dropped on the three farms... |
| Tipo: Journal paper |
Palavras-chave: Health and welfare. |
| Ano: 2008 |
URL: http://orgprints.org/13828/1/Abstract.pdf |
| |
|
|
| Kijlstra, Prof.Dr. Aize; Hoogenboom, Dr. Ron; Traag, Dr. Wim. |
| After the first news items concerning raised dioxin levels in eggs from hens with outdoor access were published in the summer of 2001, Wageningen UR carried out intensive research activities to understand the problem and to find a way to manage the problem. In 2004 the first Wageningen UR report on this issue was published. It described the possible factors that were associated with high egg dioxin levels in organic poultry farms. The most striking feature was the number of laying hens on the farm. Small and middle sized farms regularly produced eggs that exceeded the dioxin levels set out by the EU. In a follow-up study the relationship between egg dioxin levels and flock size was further analyzed and on-farm control measures were tested. Flock size was... |
| Tipo: Report |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2008 |
URL: http://orgprints.org/14797/1/1881134.pdf |
| |
|
|
| Kijlstra, Prof.Dr. Aize; Jongert, Dr. Erik. |
| One-third of the human world population is infected with the protozoan parasite Toxoplasma gondii. Recent calculations of the disease burden of toxoplasmosis rank this foodborne disease at the same level as salmonellosis or campylobacteriosis. The high disease burden in combination with disappointing results of the currently available treatment options have led to a plea for more effective prevention. In this review we describe Toxoplasma as a hazard associated with the consumption of undercooked meat or meat products and provide an analysis of the various options to control the risk of human toxoplasmosis via this source. Monitoring and surveillance programs may be implemented for pre-harvest control of Toxoplasma infection of farm animals, with the... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2008 |
URL: http://orgprints.org/14798/1/abstract_organic_eprints.doc |
| |
|
|
| Kijlstra, Prof.Dr. Aize; Bos, Dr. Bram. |
| Increased animal welfare may pose risks for public health, such as increased bacterial, viral or parasitic infections or an increased level of environmental contaminants in the food product. Examples include Campylobacter in organic boilers, Toxoplasma in pigs and poultry meat and Mycobacterium paratuberculosis in milk. Concerning environmental contaminants it is known that free-foraging laying hens will produce eggs that contain higher dioxin levels than hens kept in cages. Furthermore, outdoor chickens are considered to play an important role in the case of Avian flu outbreaks. This review indicates that it is possible to tackle each of the issues mentioned. Risk management is not only a responsibility of the government, but also should be divided... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Health and welfare. |
| Ano: 2008 |
URL: http://orgprints.org/12253/1/12253.pdf |
| |
|
|
|
