Abstract
ABSTRACT The aim of this study was to determine the effects of dietary supplementation with red algae powder (Chondrus crispus) on the growth performance, carcass traits, lymphoid organ weights and intestinal pH y in broiler chickens. A total of 300 1-day-old B34 line male broiler chickens were randomly allotted to three treatments, four replicates per treatment and 25 birds per replicate. The experimental treatments consisted of a basal diet (T0) and dietary supplementation of 0.30 (T2) and 0.40% (T2) red algae powder. Body weight at 1, 21 and 32 days did not show significant differences (p>0.05) among treatments. At 21 days, T1decreased (p 0.05) with the red algae supplementation. The dietary supplementation of 0.30% red algae improved the growth performance (at 21-day-old) and some edible parts; also, the dietary supplementation of 0.40% increased the relative weight of the lymphoid organs, without changing the intestinal pH of broilers.
Highlights
More than 75% of the land is covered by water, where marine species comprise about half of the global biodiversity (Arnold et al, 2016)
In China and Japan, marine macroalgae have been used as drug preparations, especially for the treatment of Basedow’s disease, Acquired Immunodeficiency Syndrome (AIDS), rheumatoid arthritis, hyperthyroidism and cancer, as a vermifuge, and as hypocholesterolemic and hypoglycemic agents (Kaleağasıoğlu et al, 2013; Astorga-España & Mansilla, 2014; Sakulpong et al, 2015; Anand et al, 2016; Paiva et al, 2016)
Mortality (Table 2) demonstrated the safety of red algae powder supplemented up to 0.40% on broiler diets
Summary
More than 75% of the land is covered by water, where marine species comprise about half of the global biodiversity (Arnold et al, 2016) This wide diversity is a reservoir of potent bioactive molecules, which are produced by these organisms to survive in hostile environments (Krumhansl et al, 2015). Algae are single-celled organisms that contain chlorophyll and perform photosynthesis; they are grouped in colonies or as organisms with many cells. They are located in all parts of the earth: in the sea, rivers and lakes, in soil and walls and in animals and plants (Trentacoste et al, 2015).
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