The effects of dietary probiotic Bacilli (Bacillus subtilisandBacillus licheniformis) on growth performance, feed efficiency, body composition and immune parameters of whiteleg shrimp (Litopenaeus vannamei) postlarvae

Abstract

The present study investigates the effects of dietary commercial Bacilli probiotic (Bacillus subtilis and Bacillus licheniformis) on the growth performance, feed efficiency, body composition and immune parameters of Litopenaeus vannamei. The L. vannamei postlarvae were supplied and acclimated (in 500‐L tanks) to laboratory conditions for 14 days. The shrimps were fed with diets containing 1 × 104 and 1 × 108 CFU/g probiotic Bacilli for 60 days. At the end of the feeding trial, growth performance parameters, body composition, serum biochemical parameters and the hemocytes count were evaluated. Shrimps fed diets supplemented with 1 × 104 and 1 × 108 CFU/g probiotic Bacilli showed improved weight gain, total length, specific growth rate, FCR and survival compared with the control group. The body composition studies revealed higher dry matter, crude protein and ash in shrimps fed with 1 × 104 and 1 × 108 CFU/g probiotic Bacilli. Also, dietary administration of 1 × 104 and 1 × 108 CFU/g probiotic Bacilli decreased serum glucose and cortisol levels. However, significantly increased total protein, lysozyme and hemocyte cell count were noticed in shrimps fed 1 × 104 and 1 × 108 CFU/g probiotic Bacilli. In general, the findings of this study proved that oral administration of 1 × 104 and 1 × 108 CFU/g commercial probiotic Bacilli improved growth performance, feed utilization and immune parameters in whiteleg shrimp (Litopenaeus vannamei).

The effects of dietary Bacillus subtilis on immune response, hematological parameters, growth performance, and resistance of juvenile olive flounder (Paralichthys olivaceus) against Streptococcus iniae

“…Growth-promoting effects of BS have been reported in parrot fish (Oplegnathus fasciatus; Liu, Wu, Chu, & Wu, 2018) and red sea bream (Pagrus major; Zaineldin et al, 2018). The improved growth performance caused by BS administration was also reported in shrimp (Sadat Hoseini Madani, Adorian, Ghafari Farsani, & Hoseinifar, 2018) and sea cucumber (Apostichopus japonicas; Zhao et al, 2012). However, the administration of BS in large yellow croaker and mud crab (Scylla paramamosain) diets showed no remarkable effects on growth performance (Ai et al, 2011;Yeh, Chiu, Shiu, Huang, & Liu, 2014).…”

Dietary supplementation of Bacillus cereus as probiotics in Pengze crucian carp ( Carassius auratus var. Pengze): Effects on growth performance, fillet quality, serum biochemical parameters and intestinal histology

“…Recently, probiotics are used worldwide in eco-friendly and sustainable aquaculture practices, and their application are getting more and more attention due to their positive impact towards growth and/or health benefits of aquatic animals (Chauhan & Singh, 2018;Hai, 2015;Nayak, 2010). Bacillus strains possess growth-promoting potential, and evidence from previous studies have demonstrated that Bacillus bacteria served as probiotics and had a positive impact on the growth of aquatic animals, e.g., Nile tilapia (Oreochromis niloticus; Liu, Wang, et al, 2017), red sea bream (Pagrus major; Zaineldin et al, 2018), sea cucumber (Apostichopus japonicas; Yang, Tian, Dong, Peng, & Wang, 2015) and whiteleg shrimp (Litopenaeus vannamei; Sadat, Adorian, Ghafari, & Hoseinifar, 2018). Similarly, our results indicated that dietary supplementation with 1 × 10 9 CFU/kg B. cereus exhibited significantly increased growth of Pengze crucian carp, and similar results was observed in other fish like ambaqui (Dias et al, 2018), rainbow trout (Oncorhynchus mykiss; Gisbert, Castillo, Skalli, Andree, & Badiola, 2013), and Clarias gariepinus (Reda et al, 2018).…”

The effects of water additive Bacillus cereus and Pediococcus acidilactici on water quality, growth performances, economic benefits, immunohematology and bacterial flora of whiteleg shrimp (Penaeus vannamei Boone, 1931) reared in earthen ponds

“…Similar to our data, other works have reported an increase in lysozyme activity by supplementing Bacillus spp. to the diets and adding to the water (Kewcharoen & Srisapoome, 2019;Sadat Hoseini Madani, Adorian, Ghafari Farsani, & Hoseinifar, 2018).…”