Italian Journal of Animal Science | |
Palygorskite combined probiotics improve the laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of broiler breeders | |
Songchang Guo1  Xiaowei Xiong1  Changqing He1  Shengguo Tang1  Xiangyong Qu1  Yuying Deng1  Xu Liu1  | |
[1] College of Animal Science and Technology, Hunan Agricultural University; | |
关键词: palygorskite; probiotics; hatching performance; antioxidative status; immune response; broiler breeders; | |
DOI : 10.1080/1828051X.2021.1966845 | |
来源: DOAJ |
【 摘 要 】
This experiment was conducted to investigate the effects of different supplementation levels of palygorskite and probiotics complex (Pal-Pro) on laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of broiler breeders. A total of 432 Xuefeng black-bone chickens (42-week-old) were randomly assigned into four treatments with six replicates of 18 hens. The broiler breeders were fed the basal diet supplemented with 0, 250, 500, and 750 mg/kg Pal-Pro for 8 weeks. The Pal-Pro supplementation linearly or quadratically increased (p < .05) laying rate, fertilisation rate, hatchability of fertile eggs, heath hatched chicks rate, eggshell thickness, yolk index, total antioxidant capacity, activities of total superoxide dismutase, catalase, glutathione peroxidase, and contents of immunoglobulins, interleukin-2, and tumour necrosis factor-α in plasma. With Pal-Pro supplementation increased, feed convention ratio during 5–8 and 1–8 week, embryo mortality, malondialdehyde linearly decreased (p < .05). This finding suggested that dietary supplementation with 750 mg/kg Pal-Pro administration could improve the antioxidative status and immunoglobulins contents in plasma of broiler breeders, which may contribute to an increase in broiler’s laying rate, hatching performance, egg quality, such as eggshell thickness and yolk index.HIGHLIGHTS Dietary supplementation of Pal-Pro decreased the feed conversion ratio and embryo mortality of broiler breeders. Dietary supplementation of Pal-Pro improved the laying rate, fertility, hatchability of fertile eggs, and yolk index of broiler breeders. Dietary supplementation of Pal-Pro enhanced the antioxidant capacity and the level of immunoglobulins in the plasma.
【 授权许可】
Unknown