Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2016 Vol: 8 Issue: 7

Effect of emulsified fat powder on the laying performance, egg quality, serum biochemical parameters and antioxidant activity

Abstract

This study was conducted to determine the effects of emulsified fat powder on laying performance, egg quality, serum biochemical parameters and antioxidant activity. Four hundred 300-day-old Rohman laying hens were randomly divided into 4 dietary treatments of 100 each. Each treatment had 4 replicates, and each replicate had 5 cages with 5 hens per cage. The control group was fed with basal diet, and the experimental groups I, II and III were supplemented with 1%, 3% and 5% emulsified fat powder, respectively. The adjustment period lasted for 7d and the experimental period lasted for 30d.The results showed that dietary 3% fat powder supplementation increased the rate of egg laying and mean egg weight (P<0.05) and decreased the broken egg rate (P<0.05). Serum total protein, albumin and globulin concentration increased significantly in response to supplemental fat poeder and was also maximised at 3%. In addition, serum glucose and blood urea nitrogen (BUN) significantly decreased (P<0.05). The content of total cholesterol (TC) and total triglyceride (TG) of all experimental groups decreased compared with that of the control group, and 3% addition groups was the lowest (P<0.05). Compared with the control group, the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in the serum of all the trial groups were significantly increased (P<0.05), while the content of serum malondialdehyde (MDA) reduced. These results suggested the emulsified fat powder could improve the laying performance, enhance the egg quality and oxidation resistance.