Effects of dietary Jatropha gossypiifolia leaves extract on growth performance, antioxidant capacity, immune response, and disease resistance of African sharptooth catfish (Clarias gariepinus) infected with Aeromonas hydrophila
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Date
2024-08-19
Authors
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Journal ISSN
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Publisher
Taylor and Francis
Abstract
This study investigated the effects of Jatropha gossypiifolia leaf
extract (JGE) on the performance and immune response of
African sharptooth catfish. Fish (6.43 ± 0.26 g, n = 450, 30/repli
cate) were fed diets supplemented with 0, 0.5, 1.0, 1.5, or 2.0 g
JGE/kg in triplicate for 84 days. Thereafter, the fish were injected
with Aeromonas hydrophila and observed for 14 days. Fish fed
1.0–1.5 g JGE had higher (P < 0.05) weight gain, protein effi
ciency ratio, and villi absorption area, with highest performance
at 1.0 g JGE. All the fish fed JGE-supplemented diets had
enhanced (P < 0.05) activities of glutathione-s-transferase and
glutathione peroxidase, compared to fish fed control diet, while
the variations in erythrocyte and leucocyte counts were insig
nificant (P > 0.05). The post-challenge fish fed JGE-
supplemented diets had higher lysozyme, phagocytic, and
respiratory burst activities and survival than the control
treatment