Effect of Dietary Formic and Propionic Acids Mixture on Limiting Salmonella pullorum in Layer Chicks

Autor:	K. Alshawabkeh, Y. H. Al-Tarazi
Rok vydání:	2003
Předmět:	Formic acid Positive control Negative control Limiting Microbiology Excretion chemistry.chemical_compound Animal science chemistry Salmonella Pullorum Positive culture Animal Science and Zoology Inhibitory effect Food Science
Zdroj:	Asian-Australasian Journal of Animal Sciences. 16:77-82
ISSN:	1976-5517 1011-2367
DOI:	10.5713/ajas.2003.77
Popis:	This investigation was conducted to study the effect of dietary formic acid (FA) and propionic acid (PA) mixture on inhibitory effect of Salmonella pullorum in layer chicks. Nine groups of one day-old layer chicks in addition to positive and negative controls, were fed with acids treated feed containing mixture of different acids concentrations, from 0.5% and 0.5% up to 1.5% and 1.5% FA and PA, respectively. Positive and negative controls were fed untreated feed. Groups except the negative control were challenged orally on day three with 10 4 cfu/ml S. pullorum. Cloacal swabs were taken at three successive days and at 7, 14 and 21 days of challenge. After 1, 2 and 3 weeks after challenge, 4 chicks from each group were sacrificed and crop and cecal contents were examined for S. pullorum and pH. The numbers of S. pullorum positive culture from the excretion of all treated groups except groups treated with mixture of 0.5% and 0.5%, 1% and 0.5%, 0.5% and 1% FA and PA decreased significantly (p
Databáze:	OpenAIRE
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