Camelina meal increases egg n-3 fatty acid content without altering quality or production in laying hens.
Camelina sativa is an oilseed plant rich in n-3 and n-6 fatty acids and extruding the seeds results in high protein meal (*40%) containing high levels of n-3 fatty acids. In this study, we examined the effects of feeding extruded defatted camelina meal to commercial laying hens, measuring egg production, quality, and fatty acid composition. Lohmann White Leghorn hens (29 weeks old) were randomly allocated to three dietary treatment groups (n = 25 per group) and data was collected over a 12 week production period. All the treatment groups were fed a corn soy based experimental diet containing 0% (control), 5, or 10% extruded camelina meal. We found no significant differences in percent hen-day egg production and feed consumed per dozen eggs. Egg shell strength was significantly higher in both camelina groups compared to the controls. Egg total n-3 fatty acid content increased 1.9- and 2.7-fold in 5 and 10% camelina groups respectively relative to the control. A similar increase in DHA content also occurred. Further camelina meal did not alter glucosinolate levels and no detectable glucosinolates or metabolic product isothiocyanates were found in the eggs from either the 5 or 10% camelina groups. These results indicate that camelina meal is a viable dietary source of n-3 fatty acids for poultry and its dietary inclusion results in eggs enriched with n-3 fatty acids.
Department of Poultry Science, Texas A&M University, Kleberg Center, College Station, TX 77843-2472, USA. kakani@neo.tamu.edu
Radhika
R
Kakani
Justin
J
Fowler
Akram-Ul
AU
Haq
Eric J
EJ
Murphy
Thad A
TA
Rosenberger
Mark
M
Berhow
Christopher A
CA
Bailey
D000821:Animal Feed; D000818:Animals; D019607:Brassicaceae / Q000737:chemistry; D002645:Chickens / Q000502:physiology*; D004032:Diet / Q000662:veterinary*; D004531:Eggs / Q000032:analysis*; D015525:Fatty Acids, Omega-3 / Q000032:analysis* / Q000378:metabolism; D010058:Oviposition / Q000187:drug effects*; D010063:Ovum / Q000187:drug effects / Q000378:metabolism
D015525:Fatty Acids, Omega-3