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Food-borne infections are among the prominent health hazards. Antibacterial agents (ABA) are usually administered to poultry in Lebanon as antibiotic growth promoters (AGP), which might lead to the dissemination of resistant bacterial strains. e aims of this study were to isolate potential food borne pathogens from poultry and investigate an association between AGP usage and antibacterial resistance (ABR). Isolates were obtained from the culture of cloacae swabs and identified. Escherichia coli was the predominant isolate. There was a significant association between the use of tetracycline and gentamicin as AGP and the number of E. coli isolates resistant to these ABA.
The aim of this study was to establish the effect of the genotype on performance of chickens. The experimental material included 1,320 slow-growing chickens with two genotypes Hubbard JA 957 - available on the Polish market hybrid with a declared slow growth and non-commercial hybrid CxGP, for creation of which a light native breed Greenleg Partridge hens were used. Chickens were maintained up to 63 days of age. During the experiment body weight, feed intake and health of the birds were under control. Based on the observations the growth rate and the feed conversion ratio (FCR) were determined. It was found, that chickens CxGP were characterized by lower body weight, slower rate of growth and higher feed conversion ratio compared with the chickens Hubbard JA 957, but chickens CxGP had a higher health.
Fatty acid (FA) composition of eggs from nine poultry species was determined chromatographically.Twenty six FAs were determined in the lipid composition of eggs. Monounsaturated fatty acids (MUFA) were found in higher amounts than saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) in egg yolks. Oleic acid (C18:1 n9) was the major MUFA in egg yolk and, palmitic acid (C16:0) was the major SFA in nine of all different originated eggs. Linoleic acid (C18:2 n6),arachidonic acid (C20:4 n6) and linolenic acid (C18:3 n3), reached the highest levels among the PUFAs. SFA/PUFA ratios were found to be 0.97, 2.51, 2.20, 1.46, 1.67, 1.40, 1.96, 1.27, and 1.34 in chicken, goose, duck, turkey, peacock, guinea fowl, pheasant, quail and partridge, respectively.Eggs of all nine species were found valuable for human consumption as fatty acids source, but the chicken’s egg occured to be the most beneficial to human health according to its highest omega 6 fatty acid (29.8%), highest PUFA / MUFA ratio (0.80) and lowest of SFA / PUFA ratio (0.97).
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