Effects of Guar Bean, Guar Meal and Guar Gum on Productive Performance of Broiler Chicks
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Using guar meal in poultry nutrition is limited because of its anti-nutritional content. This study was set up to evaluate whether or not anti-nutritional compounds other than residual Guar Gum (GG) contribute to Guar Meal (GM) relatively poor feeding value for poultry. One hundred eighty one-d-old broiler chicks were randomly distributed among 3 treatments with 4 replicates of 15 chicks each. Three dietary treatments were prepared in which the same dietary concentration of GG was supplemented to growing broilers as pure GG, GM or Guar Bean (GB). All diets were calculated to contain 1.35% GG. Chicks were assigned to one of the following treatments: (1) broiler diet reformulated with 3.85% GB, (2) broiler diet reformulated with 2.5% GM and (3) broiler diet with 1.35% GG. Feed consumption, body weight, b. wt. gain, feed conversion ratio and mortality rate were recorded at weekly intervals from 1-35 d. Total feed consumption recorded from 1-21 was significantly higher in chicks fed 3.85% GB versus those fed 1.35% GG. Total feed consumption from 22-35 and 1-35 day was significantly higher in chicks fed 3.85% GM than those fed 3.85% GB. The final b. wt. at 35 d for chicks fed 1.35% GG were significantly lower than both chicks fed 2.5% GM and 3.85% GB. Significantly higher weight gains in 35-days-old broilers fed both whole (ground) GB and GM versus GG suggest anti-nutritional factors other than GG are not major contributors limiting GM use in poultry feeds. 2013 Academic Journals Inc.
