Volume 8, Issue 18 (3-2018)                   rap 2018, 8(18): 30-37 | Back to browse issues page

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Abstract:   (383 Views)
Effect of different levels of date waste were studied on performance and immune responses of 240 Ross 308 broiler chicks in a completely randomized design with 5 treatments and 4 replicates and 12 birds in each replicate. The whole date waste were analyzed for chemical compositions and gradual levels of 0 (control), 5, 10, 15 and 20 percent of that were included into the diets which fed broilers for 42 days. Growth performance was recorded, weekly. Humoral immune response was evaluated by intramuscular injection of 0.1 ml sheep red blood cell (SRBC) 25 percent suspension on days 8 and 22 of age and serum antibody levels produced in response to SRBC was measured on days 21, 28, 35 and 42. Cellular immune response was assessed by intradermal injection of phytohemaglutinin on day 16. Using date waste in diet had no significant effect on daily feed intake. Daily weight gain was linearly decreased by increasing the levels of dates waste in diet (P<0.05). The birds were fed 20 percent date waste in diet had the highest feed conversion ratio compared with the control group. Inclusion of 10 percent or more date waste in diet increased total anti˗SRBC titer and IgM on days 35 and 42 (P<0.05). Cellular immune response to phytohemaglutinin was not affected by any inclusion rate of date waste. The results of current study indicated that using 10 percent date waste in broilers diet had not any negative effect on performance, which seems 10 percent level can improve humoral immune response of broilers.   
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Type of Study: Research | Subject: Special