ORBi: Guyot Hugues - Signs of neurotoxicity in a Belgian Blue herd after ingestion of moulded silage

Reference : Signs of neurotoxicity in a Belgian Blue herd after ingestion of moulded silage


	Document type :	Scientific journals : Article
	Discipline(s) :	Life sciences : Veterinary medicine & animal health
	To cite this reference:	http://hdl.handle.net/2268/82975

Title :	Signs of neurotoxicity in a Belgian Blue herd after ingestion of moulded silage
Language :	English
Alternative title :	[fr] Signes de neurotoxicité dans un troupeau Blanc Bleu Belge après ingestion d'ensilage moisi
Author, co-author :	Guyot, Hugues [Université de Liège - ULg > Département clinique des animaux de production (DCP) > Médecine interne des équidés, des ruminants et des porcs >]
	Sandersen, Charlotte [Université de Liège - ULg > Département clinique des animaux de compagnie et des équidés > Anesthésiologie et réanimation vétérinaires >]
	Brihoum, Mounir [> >]
	Vandeputte, Sébastien [Université de Liège - ULg > Département des maladies infectieuses et parasitaires > Epidémiologie et analyse des risques appl. aux sc. vétér. >]
	Rollin, Frédéric [Université de Liège - ULg > Département clinique des animaux de production (DCP) > Médecine interne des équidés, des ruminants et des porcs >]
Publication date :	Mar-2011
Journal title :	Cattle Practice
Publisher :	British Cattle Veterinary Association
Volume :	19
Issue/season :	1
Pages :	57-60
Audience :	International
ISSN :	0969-1251
City :	Fretherne
Country :	United Kingdom
Keywords :	[en] Mycotoxins ; Cattle ; Silage ; neurology ; mortality
Abstract :	[en] After ingestion of moulded beet pulp silage, cases of cerebro-cortical necrosis (CCN) and mortalities were observed in a dual purpose Belgian Blue (BB) herd. Contamination with Paecilomyces spp., a mould that produces byssochlamic acid, malformins and patulin, was proven. Twenty-five days after progressive introduction of beet pulp silage into the ration, most of the animals showed diminished appetite, excessive salivation and decreased milk production. Some of them showed anorexia, head pressing and blindness while 4 animals died within 1 week after onset of neurological symptoms. The survivors had been treated successfully with thiamine and recovered completely within five days. Once the beet pulp silage had been identified as causative agent, it was removed from the animals’ ration and no more clinical cases were observed. Silage was obviously moulded and analysis revealed the presence of 1.6 million CFU Paecilomyces spp./g of silage. Although no further investigation was undertaken to identify the mycotoxins, intoxication with patulin was suspected, since other mycotoxins produced by these species are less toxic. Although it has not been described that CCN can be induced by ingestion of Paecilomyces spp., it seems that there is a close relation between ingestion of Paecilomyces-contaminated silage and clinical signs observed in this herd.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/82975

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