Effect of dietary L-glutamate levels on growth digestive and absorptive capability and intestinal physical barrier function in Jian carp (Cyprinus carpio var. Jian)

摘要

The present study explored effects of -glutamate (Glu) levels on growth, digestive and absorptive capability, and intestinal physical barrier functions of Jian carp ( ). A total of 600 Jian carp (126.40 ± 0.21 g) were randomly distributed into 5 groups with 3 replicates each, fed diets containing graded levels of Glu (53.4 [control], 57.2, 60.6, 68.4, and 83.4 g/kg) for 63 d. Results showed compared with control diet, feed intake and percent weight gain (PWG) in fish fed 83.4 g of Glu/kg diet were increased and feed conversion ratio in fish fed 68.4 g of Glu/kg diet was decreased (  P +, K -ATPase (NKA), and creatine kinase (CK) in intestine were higher in fish fed 68.4 g of Glu/kg diet (  P P P P P P