Abstract
Abstract This study was carried out to examine the comparative effects of coconut oil (CO), avocado oil (AO), and melon seed oil (MSO) on the growth performance, blood, biochemical, hematological parameters, and total microbial loads of Noiler birds. A total of 120 Noiler birds with an average weight of 50.3 ± 0.13 g were randomized into four treatment groups with 3 replications (10 per pen) for six weeks of fattening. Weekly body weight gain and daily feed intake of the birds were recorded for six weeks, after which average weight gain and feed conversion ratios were calculated. At the end of the feeding trials, blood samples were collected for biochemical and hematological parameter assessments, and the digesta from the colon and ileum were collected for their intestinal total microbial load analysis. The average weight gains and feed conversion ratios (FCR) of the birds supplemented with CO (1229.40 ± 15.00) and MSO (1232.66 ± 43.18) were observed to be significantly higher (P < 0.05), compared to the birds supplemented with AO (1110.73 ± 18.29) and the birds fed feed only (1034.79 ± 2.04) having the least weight gained. The biochemical parameters of the birds across the treatment were not significantly different (P > 0.05). White blood cells, packed cell volume, red blood cells and lymphocytes were significantly higher in the CO group compared to the birds supplemented with the avocado oil and melon seed oil. There was no significant difference (P > 0.05) in the weight of the spleen, bursa and gall bladder among the birds. The Lactobacillus spp. in the colon of birds supplemented with coconut oil (6.43 ± 0.56) and melon oil (6.25 ± 0.65) were significantly higher. It can be concluded that coconut oil and melon seed oil have the potential to serve as growth promoters for chicken production.
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