title: Growth performance and quality properties of meat from broiler chickens reared under different monochromatic light sources.
abstract: 1. Quality properties of breast and drumstick muscles of female broiler chickens reared under different light sources were evaluated using a total of 480 female chicks (Ross 308). 2. After hatch, the chicks were randomly divided into three lighting treatment groups: control (daylight; mini incandescent lamps), G-B lighting group (green light monochromatic (MC) lamps for first 3 weeks switching to blue MC lamps for remaining 3 weeks), G-GB mixed lighting group (Green MC light for first 3 weeks, switching to Green MC light + Blue MC light mixture for remaining 3 weeks). 3. Feed consumption, body weight and total muscle weight values of the muscles from G-B and G-GB mix lighting groups were significantly higher than those of incandescent (control) lighting groups. 4. The breast and drumstick muscles from control lighting groups had a lower pH and water-holding capacity, but higher cooking loss values than those from G-B and G-GB mix lighting groups. The muscles from G-GB mix lighting groups exhibited the softer structure than those from other lighting groups. 5. We suggest that G-B or G-GB mix lighting during the rearing period of female broilers would improve body and muscle growth and then meat quality properties.
authors.affiliation: Agriculture Faculty, Department of Food Engineering, Selcuk University, Konya, Turkey. karakayam@hotmail.com
authors.forename: M
authors.initials: M
authors.lastname: Karakaya
authors.forename: S S
authors.initials: SS
authors.lastname: Parlat
authors.forename: M T
authors.initials: MT
authors.lastname: Yilmaz
authors.forename: I
authors.initials: I
authors.lastname: Yildirim
authors.forename: B
authors.initials: B
authors.lastname: Ozalp
mesh_terms: D000818:Animals; D001835:Body Weight / Q000502:physiology; D002645:Chickens / Q000254:growth & development*; D003116:Color; D003296:Cooking; D004435:Eating / Q000502:physiology; D005260:Female; D006863:Hydrogen-Ion Concentration; D008029:Lighting / Q000379:methods*; D008460:Meat / Q000592:standards*; D018482:Muscle, Skeletal / Q000254:growth & development*; D009929:Organ Size / Q000502:physiology; D011897:Random Allocation