PROTECTION DES OCÉANS : Un enjeu mondial joué sous la surface
ELEVAGE DES PORCS : Une kyrielle de techniques innovantes pour réduire les odeurs
Le bien-être des animaux et celui des éleveurs demeurent un défi quotidien en raison de nombreux aléas auxquels ils font face. C’est le cas des odeurs nauséabondes tirant leurs sources des porcheries. Cependant, il est important de contrôler ces odeurs afin de protéger leur environnement. Et ceci est possible grâce aux techniques adaptatives efficaces pour réduire ces puanteurs ?
Une porcherie
Nadège EKPO
Les odeurs provenant des lisiers sont les résultats d’une décomposition anaérobique. En effet, ces odeurs désagréables proviennent de la porcherie, de l’épandage du champ ou de l’entreposage du lisier. Ce dernier à caractère anaérobie crée parfois des concentrations de gaz qui peuvent affecter la santé des animaux et des éleveurs. Et cet état de chose fait objet de nombreuses recherches dans certains pays référence de grande concentration d’élevage porcins. Les odeurs étant donc des problèmes auxquels il faut trouver des solutions, il faut dire qu’il existe des techniques modernes efficaces pour y répondre.
Des méthodes pour contrôler les odeurs porcines
Dans plusieurs cas, le nettoyage des porcheries est la première astuce pour réduire les odeurs. Mais, d’autres techniques efficaces existent pour l’atténuer, notamment l’utilisation d’une litière avec d’excellents microorganismes. Cette dernière permet d’éviter les mauvaises odeurs. Selon, Pierre Adimon, éleveur de porcs, « les odeurs provenant de la porcherie sont transportés principalement par les poussières en suspension. Donc, la filtration de l’air réduit considérablement les odeurs ». Pour lui, il faut d’abord ajuster le programme alimentaire aux besoins des porcs car certains nutriments en excès non assimilés peuvent augmenter l’émission d’odeur. Aussi, importe-t-il de diminuer les marges de sécurités. Et pour cela, il est primordial de connaître les matières premières qui composent les aliments et adaptés aux porcs.
Outre cela, « le traitement de la litière avec de balles de riz et du micro-organisme indigène, peut créer un environnement favorable pour les porcs » confirme Philipe Dégnon, éleveur de porc. A en croire ce dernier, dans les étables, ces micro-organismes assurent la décomposition rapide du fumier et de l’urine puis réduire les mauvaises odeurs. Il est donc crucial d’appliquer des méthodes telles que la bio filtration, les couvertures flottantes ou un traitement des effluents pour atténuer les odeurs. La gestion de l’odeur porcine est donc importante pour le maintien sain de l’environnement et pour le bien-être de tous et surtout des animaux.
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