EFFECT OF DIFFERENT SULFATED POLYSACCHARIDES (SEAWEED EXTRACTS) ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND GUT HEALTH IN BROILERS
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Date
2022
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
An experiment was conducted to study the effect of supplementing sulfated
polysaccharides (Seaweed extracts) on production performance, lipid profile, immune
response and gut health in broilers. A total of 360, day-old broiler chicks were randomly
allocated to the eight experimental groups each containing 3 replicates with 15 birds in
each replicate. Basal diet T1 was prepared using corn-soya diet without antibiotic. T2 was
fed with basal diet with 0.03 per cent antibiotic. T3 was fed with basal diet with sulfated
polysaccharide from red seaweed Kappaphycus alvarezii @ 250g/ton for 6 weeks.
Treatment groups T4 and T5 were fed with control diet along with sulfated polysaccharide
from Kappaphycus alvarezii @ 500g/ton for 4 and 6 weeks, respectively. Treatment groups
T6, T7 and T8 were fed with control diet with sulfated polysaccharide from red seaweed
Eucheuma denticulatum @ 250g/ton for 6 weeks, @500g/ton for 4 and 6 weeks,
respectively. The results revealed that feeding sulfated polysaccharides resulted in
significant improvement in body weight and feed efficiency. Inclusion of sulfated
polysaccharides had no significant improvement on the immune response against
Newcastle disease and Infectious bursal disease. Sulfated polysaccharides improved
weight of lymphoid organs, significantly (P ≤ 0.05) reduced serum cholesterol, LDL,
Triglycerides and increased HDL and total protein levels. There was no significant
difference (P > 0.05) in dressing per cent, but significantly reduced (P ≤ 0.05) meat
cholesterol levels and increased visceral organ weights and antioxidant status.
Histopathology of duodenum, jejenum and ileum revealed higher number of villi per
microscopic field, higher villi width and height in supplemented birds. It was concluded
that feeding sulfated polysaccharides was beneficial in improving growth performance, gut
health, antioxidant profile, lowering the serum cholesterol, LDL and improving serum
HDL levels in broiler chicken.