期刊
AGRICULTURE-BASEL
卷 12, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/agriculture12010083
关键词
gosling; vitamin E; growth performance; immunity; antioxidant capacity
类别
资金
- China Agriculture Research System of MOF
- MARA, and major new varieties of agricultural projects in Jiangsu Province [PZCZ201738]
This experiment investigated the effects of different dietary levels of vitamin E on the growth, immunity, and antioxidant capacity of goslings. The results showed that dietary supplementation with vitamin E improved the growth performance, immunity, and antioxidant capacity of the goslings.
This experiment aimed to investigate effects of the different dietary levels of vitamin E (VE) on the growth performance, immunity and antioxidant capacity of goslings. A total of 240 1-day-old, male Jiangnan white goslings were selected and randomly divided into 6 groups. Each treatment included five replicates. The basal diet was supplemented with 6 concentrations of VE (0, 12, 24, 36, 48 and 60 mg DL-alpha-tocopherol acetate/kg). The results were as follows: (1) The alpha-tocopherol content in the serum and liver of goslings increased linearly as supplemental VE increased in diet (p < 0.05). (2) The body weight (BW) and average daily gain (ADG) increased quadratically with increasing dietary VE supplementation (p < 0.05). Dietary VE supplementation could significantly reduce the feed/gain ratio (F/G) (p < 0.05). (3) Dietary supplementation with VE could significantly improve the contents of immunoglobulin A (IgA) and immunoglobulin G (IgG) in the serum of the goslings (p < 0.05). The content of interferon-gamma (IFN-gamma) in the serum was significantly reduced with VE supplementation (p < 0.05). (4) Dietary supplementation with VE could significantly improve serum and liver catalase (CAT), superoxide dismutase (SOD) activities and liver total antioxidant capacity (T-AOC) (p < 0.05); Serum and liver MDA contents were significantly reduced with VE supplementation (p < 0.05). In summary, dietary supplementation with VE could improve growth performance, immunity and antioxidant capacity. Based on broken-line regression analysis, the dietary VE supplementation level for ADG was 12.51 mg/kg, but higher supplementation level should be considered to improve immunity and antioxidant capacity.
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