Synergistic influence of hydrolyzed squid processing by-products and Bacillus probiotics as dietary supplements on growth performance, immunological responses, and gut health of juvenile black tiger shrimp fed fishmeal-free diets

Pan, Maila V.; Ferriols, Victor Marco Emmanuel N.; Traifalgar, Rex Ferdinand M.

doi:10.1007/s10499-024-01390-x

Cited by 1 publication

(1 citation statement)

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“…Moreover, HAINUP40 significantly raised trypsin levels, and BS also increased lipase levels. Similar to our study, the addition of Bacillus subtilis to the diet of black tiger shrimp (Penaeus monodon) for 50 days significantly enhanced intestinal digestive enzyme (lipase) activity [54]. Likewise, in diets supplemented with lactobacillus for Channa argus fed for 56 days, there was a significant increase in intestinal protease, amylase, and lipase activities [35].…”

Section: Discussionsupporting

confidence: 85%

Strain-Specific Benefits of Bacillus on Growth, Intestinal Health, Immune Modulation, and Ammonia-Nitrogen Stress Resilience in Hybrid Grouper

Han,

Shi,

Cui

et al. 2024

Antioxidants

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In the dynamic field of intensive aquaculture, the strategic application of probiotics has become increasingly crucial, particularly for enhancing resistance to environmental stressors such as ammonia-nitrogen. Over a 42-day period, this study investigated the effects of different probiotic strains—Bacillus subtilis (BS, 6-3-1, and HAINUP40)—on the health and resilience of hybrid groupers. Each strain, distinct in its origin, was assessed for its influence on growth performance, antioxidant capacity, immune gene expressions, and ammonia-nitrogen stress response in the hybrid grouper. The experimental design included a control group and three experimental groups, each supplemented with 1 × 108 CFU/g of the respective probiotic strains, respectively. Our results demonstrated notable differences in growth parameters, including final body weight (FBW) and feed conversion ratio (FCR). The 6-3-1 strain, originating from grouper, exhibited significant improvements in growth, oxidative capacity, and intestinal health. Conversely, the BS strain achieved the highest survival rates under ammonia-nitrogen stress, indicating its superior ability to regulate inflammatory responses despite its less pronounced growth-promoting effects. The HAINUP40 strain was distinguished for its growth enhancement and improvements in intestinal health, though it also showed significant activation of inflammatory genes and decreased resistance to ammonia-nitrogen stress after extended feeding. The uniqueness of this study lies in its detailed examination of the strain-specific effects of probiotics on fish in the context of ammonia-nitrogen stress, a significant challenge in contemporary aquaculture. The research revealed that host-derived probiotics, particularly the 6-3-1 strain, provided more comprehensive benefits for growth performance and stress resilience. In contrast, the BS and HAINUP40 strains exhibited varying efficiencies, with BS excelling in stress resistance and HAINUP40 promoting growth and gut health. In conclusion, this study underscores the complex roles of different probiotic strains in aquaculture, contributing to the understanding of probiotic applications and presenting new approaches to address the challenges of intensive farming.

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Section: Discussionsupporting

confidence: 85%