Assessment of the effects of vegetative and lyophilized Pediococcus acidilactici on growth, feed utilization, intestinal colonization and health parameters of rainbow trout (Oncorhynchus mykiss…
By D. Merrifield, G. Bradley, G. Harper, R. Baker, C. Munn, S. Davies. 2011
151 citations recorded by the source corpus.
A study was conducted to assess the probiotic effect of different dietary forms of Pediococcus acidilactici on rainbow trout (Oncorhynchus mykiss Walbaum). Growth performance, feed utilization, intestinal colonization and basic health status were investigated after a 10 week feeding trial. Fish were fed either vegetative (Veg) or lyophilized (Lyo) cells incorporated into a basal diet at either 107 (Lo) or 108 (Hi) CFU g−1. P. acidilactici temporarily colonized the digestive tract (as both epithelium associated and transient populations) in all probiotic groups during supplemented feeding. Scanning electron microscopy confirmed the presence of localized colonization of P. acidilactici-like cells between intestinal folds of the probiotic fed fish. Compared to the control group, no significant improvements in growth performance, feed utilization or carcass composition were observed in the probiotic fed fish (P > 0.05). However, a significant reduction of condition factor (K) was evident in fish fed the lyophilized diets. Increased leucocyte levels were observed in fish fed the low level vegetative P. acidilactici supplemented diet yet leucocyte types were not affected. The study demonstrates some potential for the application of P. acidilactici with rainbow trout but further research is required to optimize applications.
Subfields: Animal Science and Zoology, Aquatic Science, Immunology
View Paper: https://www.semanticscholar.org/paper/0b536f2d0617e2d83943cbdae432e2437540abae
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Citations in the corpus
- The development of the gut microbiota in rainbow trout (Oncorhynchus mykiss) is affected by first feeding and diet type (2014, background): “Despite earlier studies showing effects of the acidilactici when applied to fish (Merrifield et al., 2011; Ferguson et al., 2010) effects were seen in this study.”
- Effect of dietary components on the gut microbiota of aquatic animals. A never‐ending story? (2016, background): “In a study with juvenile tilapia, Merrifield et al. (2011c) investigated the effect of Ergosan (5 g kg 1) on the allochthonous and autochthonous gut bacterial community and revealed that numbers of OTUs, species diversity and richness were unaffected by dietary treatments within the allochthonous…”
- Probiotics in Fish Nutrition—Long-Standing Household Remedy or Native Nutraceuticals? (2021, background): “[89,90] observed that feed-supplemented Pediococcus acidilactici significantly enlarged the absorptive surface of the gut via an increased microvilli length in the proximal gut of rainbow trout, whereas Bacillus subtilis, Bacillus licheniformis, and Enterococcus faecium did not exhibit such an effec”