The main objective of this research study was to evaluate the efficacy of different emulsifiers on growth performance, intestinal histology and serum biochemistry in broilers reared on different fat sources. A 2 x 4 experiment using 2 oil sources (soybean oil (SO) and refined poultry oil (RPO)) and 4 emulsifiers (control, lysolecithin, lysophospholipid and bile acids) was undertaken using factorial arrangement under completely randomized design using Minitab 17. One thousand, three hundred and sixty (1360) day-old broiler birds (ROSS-308) were divided into eight treatments having five replicates (34 birds in each). Feed intake and body weight were recorded in order to calculate FCR. Two birds from each replicate were randomly selected and slaughtered to collect ilium samples. Use of soybean oil in broiler diet had improved (P<0.05) FCR than poultry oil; however, weight gain and feed intake was not affected (P>0.05) by oil sources. Weight gain, feed consumption and FCR were improved (P<0.05) in bile acid supplemented group. Low density lipoprotein and atherogenic index were lower (P<0.05) in birds fed diet containing bile acids. Bile acid in broiler diet had greater (P<0.05) villus height and villus surface area than other emulsifiers. It can be concluded that bile acids in broiler diet had improved growth performance and increased villus height as compared to lysolecithin and lysophospholipid.

To Cite This Article: Shoaib M, Bhatti SA, Nawaz H and Rehman MSU, 2021. Effect of different emulsifiers on growth performance, intestinal histology and serum biochemistry in broilers reared on different fat sources. Pak Vet J, 41(2): 185-190. http://dx.doi.org/10.29261/pakvetj/2021.012