CELMANAX SUPPLEMENTATION IN BROILER BREEDER AND BROILER DIETS REDUCED PREVALENCE OF SALMONELLA
CELMANAX™ is a multicomponent, all-natural feed supplement containing Refined Functional
Carbohydrates™ (RFC™) that has Generally Recognized as Safe (GRAS) status as a feed ingredient.
Study overview
| Two independent studies1,2 were done to evaluate the effect of CELMANAX supplementation in broiler breeder and broiler diets on Salmonella prevalence. |
1Walker et al. Poult Sci 2017;96(8):2684-2690.
2Walker et al. Poultry Science 2018;97:1412–1419.
Study 1
» A total of 1,040 one-day-old broiler breeders were reared in 16 pens (60 – 65 females per pen and
8 – 18 males per pen; 8 pens per treatment)
» Broiler breeders were fed 0 or 50 g/MT of CELMANAX SCP
» Eggs from 51-week-old breeder hens were collected and hatched, and male progeny broiler chicks
were fed diets supplemented with 0 or 50 g/MT of CELMANAX SCP
» All broilers (n=192) were tested for cecal Salmonella spp. at 34 days of age
» Ceca were collected from breeder hens (n=28 – 30) from each treatment group at 23 and 64 weeks of age and tested for Salmonella prevalence
» Breeder performance was measured
Study 2
» One-day-old Ross Broiler chicks sorted by sex were allotted to 24 replicate pens of 12 broilers each per diet per sex and fed either 0 or 50 g/MT of CELMANAX SCP
» Broilers were fed a standard starter, grower and finisher diet
» Broiler pens were tested for Salmonella prevalence in the litter
»Salmonella prevalence was also tested in broiler ceca
» Broiler performance was measured
RESULTS
| In study 1, control broiler breeder hens had 71.43% and 40.00% prevalence of Salmonella in the ceca, while hens fed CELMANAX had zero prevalence of Salmonella (P<0.01) (Figure 1). |
Figure 1. Treatment effects on % prevalence of Salmonella in breeder hen ceca in Study 1.
| In study 1, broiler progeny from hens fed the control diet and receiving control broiler diets had 12.5% prevalence of Salmonella in the ceca whereas broilers from CELMANAX-fed hens and receiving 0 or 50 g/MT of CELMANAX in the broiler diets had zero prevalence of Salmonella at 34-day sampling (Figure 2). |
Figure 2. Breeder and broiler treatment effects on % prevalence of Salmonella in broiler ceca in Study 1.
| In study 2, Salmonella spp. was isolated from litter from 7 of 48 (14.58%) control-fed broiler pens, but none (0%) were isolated from CELMANAX-fed pens (P≤0.05) (Figure 3). |
Figure 3. Broiler treatment effects on % incidence of Salmonella presence in litter in Study 2
|
Broiler cecal sampling for Salmonella at 44 days of age and 55 days of age confirmed 45.83% and 29.17% prevalence respectively in control-fed broilers, but none from pens fed CELMANAX (Figure 4). |
| CELMANAX-fed female broilers had a tendency for improved body weight and feed-conversion ratio(data not presented). |
Figure 4. Treatment effects on % prevalence of Salmonella in ceca of broilers in Study 2
CONCLUSIONS
| CELMANAX supplementation in broiler breeder and broiler diets significantly reduced prevalence of Salmonella in the litter and ceca, thus supporting its benefit in a multifactorial Salmonella mitigation strategy in poultry production. |