Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Effects of Ecklonia cava as fucoidan-rich algae on growth performance, nutrient digestibility, intestinal morphology and caecal microflora in weanling pigs

  • Choi, Yohan (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University) ;
  • Hosseindoust, Abdolreza (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University) ;
  • Goel, Akshat (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University) ;
  • Lee, Suhyup (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University) ;
  • Jha, Pawan Kumar (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University) ;
  • Kwon, Ill Kyong (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University) ;
  • Chae, Byung-Jo (Department of Animal Resources Science, College of Animal Life Sciences, Kangwon National University)
  • Received : 2016.02.05
  • Accepted : 2016.04.14
  • Published : 2017.01.01
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Abstract

Objective: In the present study, role of increasing levels of Ecklonia cava (seaweed) supplementation in diets was investigated on growth performance, coefficient of total tract apparent digestibility (CTTAD) of nutrients, serum immunoglobulins, cecal microflora and intestinal morphology of weanling pigs. Methods: A total of 200 weaned pigs (Landrace${\times}$Yorkshire${\times}$Duroc; initial body weight $7.08{\pm}0.15kg$) were randomly allotted to 4 treatments on the basis of body weight. There were 5 replicate pens in each treatment including 10 pigs of each. Treatments were divided by dietary Ecklonia cava supplementation levels (0%, 0.05%, 0.1%, or 0.15%) in growing-finishing diets. There were 2 diet formulation phases throughout the experiment. The pigs were offered the diets ad libitum for the entire period of experiment in meal form. Results: The pigs fed with increasing dietary concentrations of Ecklonia cava had linear increase (p<0.05) in the overall average daily gain, however, there were no significant differences in gain to feed ratio, CTTAD of dry matter and crude protein at both phase I and phase II. Digestibility of gross energy was linearly improved (p<0.05) in phase II. At day 28, pigs fed Ecklonia cava had greater (linear, p<0.05) Lactobacillus spp., fewer Escherichia coli (E. coli) spp. (linear, p<0.05) and a tendency to have fewer cecal Clostridium spp. (p = 0.077). The total anaerobic bacteria were not affected with supplementation of Ecklonia cava in diets. Polynomial contrasts analysis revealed that villus height of the ileum exhibited a linear increase (p<0.05) in response with the increase in the level of dietary Ecklonia cava. However, villus height of duodenum and jejunum, crypt depth, villus height to crypt depth ratio of different segments of the intestine were not affected. Conclusion: The results suggest that Ecklonia cava had beneficial effects on the growth performance, cecal microflora, and intestinal morphology of weanling pigs.

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References

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