Comparative study on the utilization of different methionine sources by channel catfish, Ictalurus punctatus (Rafinesque, 1818)

Abstract

The study was conducted to examine the effects of different methionine (Met) sources on the growth performance of channel catfish (Ictalurus punctatus). Six diets with isonitrogen and isoenergy were formulated as positive control (PC) diet (0.57% Met), negative control (NC) diet (0.42% Met) without or with the addition of crystalline DL‐Met (CM), Met hydroxy analogue (MHA), Met hydroxy analogue calcium salt (MHA‐Ca) and microcapsulated DL‐Met (MM) to obtain the same Met level as PC diet. After 8 weeks feeding trial, channel catfish (76.0 ± 0.3 g) fed MHA‐Ca and MM diets, but not CM and MHA diets, had higher weight gain, lipid productive value, protein productive value and lower feed conversion ratio than those in NC group (P < 0.05) and showed no differences in these indicators with PC group (P > 0.05). Levels of serum total protein and total free amino acid (TFAA) of all groups peaked at the 4th h, and CM group had lower TFAA level than that in MM group at the 6th h after feeding (P < 0.05). In NC group, the activities of liver aspartate aminotransferase and alanine aminotransferase peaked at the 4 h after feeding, and the peaking time in CM group was advanced to the 2nd hour, while in MHA, MHA‐Ca and MM groups, the peaking times were delayed to the 6th hour after feeding. The above results indicated that the supplementation of MHA‐Ca, MM rather than CM, MHA in diets deficient in methionine could improve the growth of channel catfish.

Comparative study on the utilization of crystalline methionine and methionine hydroxy analogue calcium by Pacific white shrimp (Litopenaeus vannamei Boone)

“…In the present study, the haemolymph TFAA peak was observed at 2nd hr after feeding in crystalline Met groups, and it was delayed to the 3rd hr by dietary MHA‐Ca. The similar results were also reported in Jian carp (Shan et al., ) and channel catfish (Zhao et al., ).…”

Effects of three methionine sources in diets on temporal B0AT1 and ASCT2 mRNA expression in different intestinal segments of cobia, Rachycentron canadum

“…The Co‐Met has a longer residue time in the intestine and is absorbed slower compared with the uncoated Met, showing that the supplementation of microcapsulated Met rather than crystalline Met in diets deficient in Met could improve the growth of channel catfish (Zhao et al, 2016). However, there are some differences between past studies and the results presented here.…”

“…The Co‐Met has a longer residue time in the intestine and can be absorbed slower compared with crystalline Met. Zhao et al (2016) reported that the supplementation of microcapsulated Met rather than crystalline DL‐Met in diets deficient in Met could improve the growth of channel catfish, Ictalurus punctatus .…”

Application of meta‐analysis towards understanding the effect of adding a methionine hydroxy analogue in the diet on growth performance and feed utilization of fish and shrimp

“…Jian carp and grass carp both belong to carp). The complete data set included 249 effect sizes ( n = 54 for FW, n = 67 for WG, n = 43 for PER, n = 52 for FCR, n = 33 for FE) from 23 studies that included eight different fish species including carp (Shen et al 2007; Jia 2010; Li 2010; Xiao et al 2011; Shan et al 2015; Pan et al 2016), channel catfish (Zhao et al 2017), red drum (Goff & Gatlin 2004), sea bass (Keembiyehetty & Gatlin III 1995; Keembiyehetty & Gatlin 1997; Kelly 2005; Kelly et al 2006; Savolainen & Gatlin III 2010; Zhang et al 2017), rainbow trout (Poston 1986; Cheng et al 2003), Nile tilapia (Zhao et al 2010), large yellow croaker (Ma et al 2016), and turbot (Ma et al 2013; Hu et al 2015), and one shrimp species, the Pacific white shrimp (Forster & Dominy 2006; Browdy et al 2012; Chen et al 2018).…”