KHOIRUL HUDA, 061714353007 (2019) PENGARUH PEMBERIAN PROBIOTIK Lactobacillus acidophilus DAN Bifidobacterium sp TERHADAP ANALISIS USAHA AYAM PETELUR YANG TERINFEKSI Escherichia coli. Thesis thesis, Universitas Airlangga.

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Abstract

The purpose of this study was to determine the use of probiotics Lactobacillus acidophilus and Bifidobacterium sp on feed consumption, Hen Day Production (HDP), Feed Conversion Ratio (FCR), egg weight and analysis of business laying hens infected with Escherichia coli. About 120 layers at 25 weeks of age were randomized into six treatments. The treatment consisted of factors a (infection and non-infection Escherichia coli) and factor b (basal feed, AGP and probiotics). The results of the study gave probiotics an effect (p <0.05) on feed consumption, HDP, FCR, egg weight and business analysis. The highest feed consumption was found in the treatment of infectious probiotics, the highest HDP was treated with non-infectious probiotics, the lowest FCR was non-infectious probiotic treatment, the highest egg weight of non-infectious probiotic treatments. Infection factors have an effect (p <0.05) on HDP, FCR, egg weight, acceptance and profit but have no effect (p> 0.05) on feed consumption and variable costs. There were interactions between probiotic and infection factors (p <0.05) on HDP, FCR, egg weight, acceptance and profit but there was no interaction (p> 0.05) between probiotic and infection factors on feed consumption and variable costs. It can be concluded that the administration of probiotics can produce good production performance and high profits

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