Palygorskite combined probiotics improve the laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of broiler breeders

This experiment was conducted to investigate the effects of different supplementation levels palygorskite and probiotics complex (Pal-Pro) on laying performance, hatching egg quality, plasma antioxidative status, immune response broiler breeders. A total 432 Xuefeng black-bone chickens (42-week-old) were randomly assigned into four treatments with six replicates 18 hens. The breeders fed basal diet supplemented 0, 250, 500, 750 mg/kg Pal-Pro for 8 weeks. linearly or quadratically increased (p < .05) rate, fertilisation hatchability fertile eggs, heath hatched chicks eggshell thickness, yolk index, antioxidant capacity, activities superoxide dismutase, catalase, glutathione peroxidase, contents immunoglobulins, interleukin-2, tumour necrosis factor-α in plasma. With increased, feed convention ratio during 5–8 1–8 week, embryo mortality, malondialdehyde decreased .05). finding suggested that dietary administration could improve status immunoglobulins breeders, which may contribute an increase broiler’s such as thickness index.HIGHLIGHTSDietary conversion mortality breeders.Dietary improved fertility, index enhanced capacity level