Effect of Dietary Vitamin E on Growth Performance, Immunity and Antioxidant Capacity in Male Jiangnan White Goslings from 1 to 28 d of Age

Qingyu Sun, Haiming Yang, Jun Yu, Jingru Liang, Xuean Xu and Zhiyue Wang
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Qingyu Sun: College of Animal Science and Technology, Yangzhou University, No. 48 Wenhui East Road, Yangzhou 225009, China
Haiming Yang: College of Animal Science and Technology, Yangzhou University, No. 48 Wenhui East Road, Yangzhou 225009, China
Jun Yu: College of Animal Science and Technology, Yangzhou University, No. 48 Wenhui East Road, Yangzhou 225009, China
Jingru Liang: College of Animal Science and Technology, Yangzhou University, No. 48 Wenhui East Road, Yangzhou 225009, China
Xuean Xu: College of Animal Science and Technology, Yangzhou University, No. 48 Wenhui East Road, Yangzhou 225009, China
Zhiyue Wang: College of Animal Science and Technology, Yangzhou University, No. 48 Wenhui East Road, Yangzhou 225009, China

Agriculture, 2022, vol. 12, issue 1, 1-9

Abstract: 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-α-tocopherol acetate/kg). The results were as follows: (1) The α-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-γ (IFN-γ) 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.

Keywords: gosling; vitamin E; growth performance; immunity; antioxidant capacity (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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