TY - JOUR
T1 - The effects of dietary Zinc on growth, immunity and reproductive performance of female Macrobrachium nipponense prawn
AU - Zhang, Meng
AU - Huang, Youhui
AU - Li, Yiming
AU - Cai, Mingqi
AU - Zhao, Yunlong
N1 - Publisher Copyright:
© 2020 John Wiley & Sons Ltd
PY - 2021/4
Y1 - 2021/4
N2 - We accessed the effects of dietary Zn on growth, immunity and reproductive performance in female Macrobrachium nipponense. After feeding with a homemade diet containing 21, 50, 81, 136 and 203 mg kg−1 Zn for 60 days, prawns showed a significant increase in weight gain, improved survival, higher hepatosomatic and gonadosomatic indices (p < 0.05) in group 50 and 81 mg kg−1 Zn. Broken-line analysis indicated that the optimal concentration of dietary zinc was 75.48 mg kg−1. Dietary Zn had drastically increased crude lipid content in body composition (p < 0.05), while moisture, ash and crude protein had no significant difference among groups (p > 0.05). Zn content in hepatopancreas linearly increased along with increases in dietary Zn, while Zn content in muscle and haemolymph had no difference in Zn supplemented groups (p > 0.05). The highest activities of Cu/Zn-SOD, T-SOD and CAT in hepatopancreas were in 81 mg kg−1 and 50 mg kg−1 Zn diet, respectively. MDA had the lowest content in 21 to 81 mg kg−1 Zn levels. The highest haemolymph AKP activity was in 81 mg kg−1 Zn diet group, while the highest PO activity was in 136 mg kg−1 Zn diet. Both levels of progesterone and estradiol and gene expression of VG and VGR were highest in 50 to 81 mg kg−1 Zn levels. These results provided evidence that dietary Zn ranging from 50 to 81 mg kg−1 has a positive impact on growth, immunity and reproductive performance of female prawn.
AB - We accessed the effects of dietary Zn on growth, immunity and reproductive performance in female Macrobrachium nipponense. After feeding with a homemade diet containing 21, 50, 81, 136 and 203 mg kg−1 Zn for 60 days, prawns showed a significant increase in weight gain, improved survival, higher hepatosomatic and gonadosomatic indices (p < 0.05) in group 50 and 81 mg kg−1 Zn. Broken-line analysis indicated that the optimal concentration of dietary zinc was 75.48 mg kg−1. Dietary Zn had drastically increased crude lipid content in body composition (p < 0.05), while moisture, ash and crude protein had no significant difference among groups (p > 0.05). Zn content in hepatopancreas linearly increased along with increases in dietary Zn, while Zn content in muscle and haemolymph had no difference in Zn supplemented groups (p > 0.05). The highest activities of Cu/Zn-SOD, T-SOD and CAT in hepatopancreas were in 81 mg kg−1 and 50 mg kg−1 Zn diet, respectively. MDA had the lowest content in 21 to 81 mg kg−1 Zn levels. The highest haemolymph AKP activity was in 81 mg kg−1 Zn diet group, while the highest PO activity was in 136 mg kg−1 Zn diet. Both levels of progesterone and estradiol and gene expression of VG and VGR were highest in 50 to 81 mg kg−1 Zn levels. These results provided evidence that dietary Zn ranging from 50 to 81 mg kg−1 has a positive impact on growth, immunity and reproductive performance of female prawn.
KW - Macrobrachium nipponense
KW - enzyme activity
KW - gene expression
KW - growth
KW - reproductive performance
KW - zinc
UR - https://www.scopus.com/pages/publications/85096638160
U2 - 10.1111/are.15010
DO - 10.1111/are.15010
M3 - 文章
AN - SCOPUS:85096638160
SN - 1355-557X
VL - 52
SP - 1585
EP - 1593
JO - Aquaculture Research
JF - Aquaculture Research
IS - 4
ER -