Divani, A. (2015) Effect of using Ovate (Plantago psyllium) in the diet on performance, immune system and intestine of broiler chickens. Masters thesis, university of zabol.
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Abstract
In this experiment, the effect of dietary Plantago ovata (PO) on performance, carcass criteria, intestinal morphology, immunity, and intestinal bacterial population of broiler chickens was evaluated. A total of 250 one-day old male broiler chicks (Ross 308) were randomly assigned to five treatments containing 0, 5, 10, 15, or 20 g/kg of PO with five replicate pens and 10 birds in each replicate. Dietary PO increased body weight gain and decreased feed conversion ratio in the finisher period, improving the performance index (P < 0.05). Dietary treatments had no effects on carcass criteria but breast meat percentage showed an increasing trend with incremental levels of PO in the diet (P = 0.069). The length of small intestine, especially jejunum section, as well as the villus height, villus width, villus area, and goblet cell numbers were significantly increased with supplemental PO (P < 0.05). Humoral and cellular immunity parameters, and oxidation stability of meat were improved due to use of dietary PO (P < 0.05). Dietary PO decreased the CFU of Escherichia coli, whereas, the Lactobacilli population was increased (P = 0.001). Broken-line regression revealed that dietary PO at the rate of 10 g/kg may results in the best performance in broiler chickens. This study showed that PO at the level of 10 g/kg could be considered as a beneficial feed additive in broiler diet.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Broiler chick, villus area, oxidation stability; antibody titer, intestinal microbiota |
| Subjects: | S Agriculture > SF Animal culture |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 16 May 2018 07:24 |
| Last Modified: | 02 Mar 2019 07:46 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/1700 |
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