Effect of organic acids supplementation in layers on production performance and microorganism in faeces and on eggshell
by Jadsada rattanawut
172 seventy-two weeks old layers were used to investigated the efficacy of organic acids on productive performance and reducing microorganism (salmonella spp. and E. coli) in faeces and on eggshell. The hens were randomly divided into 7 groups, each comprising five replications of 5 birds each: control, flavomycin in diet, organic acid 0.2, 0.4 and 0.6% in diet, and 0.1% organic acids solution type 1 and 2 in drinking water, respectively. They were fed 110 g/b/d for 6 weeks. The results showed that feed intake, egg production and feed conversion ratio were significantly difference (P<0.01) Feed intake of hens fed the organic acids solution in water were significant less than other groups (P<0.01). Egg production and feed conversion ratio of hens fed the organic acid 0.2% in diet was better than other organic acids supplementation groups and no significant difference with antibiotic group.
The total Salmonella spp. And E. coli counted in faeces and on eggshell at 42 day were significant less than the control group (P<0.01). These results suggest that organic acids supplementation in diet can be substitute as antibiotics and 0.2% in diet showed the best productive performance of organic acid supplementation groups.
Department of Animal Technology, Maejo University Chiangmai , Thailand.
February 27 2008 03:33 pm | Research