( 1 Assistant Prof. LPM, 2 Professor LPM) Eco. Env. & Cons. 28 (October Suppl. Issue) : 2022; pp. (S45-S49) Copyright@ EM International ISSN 0971–765X Effect of Lactobacillus acidophilus (LB) and Saccharomyces cerevisiae (Yeast) fermentation on nitrogen, phosphorus and potassium level of poultry farm waste Irfan Akram Baba 1 *, Mohammad Tufail Banday 2 , Hilal Musadiq Khan 2 , Azmat Alam Khan 2 and Islam U Din Sheikh 2 Department of LPM, FVSc and AH, SKUAST, Kashmir, 190 006, India (Received 26 January, 2022; Accepted 25 February, 2022) ABSTRACT Present work was carried out in the Department of LPM, FVSc and AH (SKUAST- Kashmir) to assess the change in values of minerals like Nitrogen, Phosphorus and Potassium due to Lactic Acid and Yeast Fermentation of poultry waste under the temperate climate of Kashmir Valley. Poultry waste in the form of dead birds and litter manure was used for this study. Nine groups with four replicates each were formulated as: G 1 : Dead birds; Poultry litter, G 2 : Dead birds; Litter manure; LB @1.0 per cent G 3 : Dead birds; Litter manure; LB @0.5 per cent G 4 : Dead birds; Litter manure; Yeast @1.0 per cent G 5 : Dead birds; Litter manure; Yeast @0.5 per cent G 6 : Dead birds; Litter manure; LB@ 1 per cent; Yeast @ 0.5 per cent G 7 : Dead birds; Litter manure; LB @ 1 per cent; Yeast @ 1per cent G 8 : Dead birds; Litter manure; LB @ 0.5 per cent; Yeast @ 0.5 per cent T 9 : Dead birds; Litter manure; LB @ 0.5per cent; Yeast @1per cent. At final stage of work it was recorded significantly highest (P0.05) nitrogen level of 18.2 g/kg during winter and highest nitrogen level of 17.8 g/Kg during summer in G 2 group (LB@ 1%). In the final product of fermentation significantly highest (P0.05) highest phosphorus level of 0.85 g/Kg in G 7 (in which LB@ 1% and Yeast@ 1% was added) during winter season and the significantly (P0.05) highest P level of 0.85 g/Kg in G 5 and G 6 during summer season was observed. Similarly significantly (P0.05) highest potassium level observed in the final product of fermentation was 7.0 g/Kg in G 7 (in which LB@ 1% and Yeast@ 1% was added) during winter season and significantly (P0.05) highest K level of 8.0 g/Kg in G 3 group (in which LB@ 0.5% was added) during summer season was observed. There was a significant increase in the nitrogen, phosphorus and potassium level in the final product of lactic acid and yeast fermentation of poultry waste. Key words : Fermentation, LB, Yeast, Poultry farm waste. Introduction The poultry sector in India is the fastest growing segment of the livestock sector with 16.81 % present annual growth rate (Anon. 2021). With high levels of concentrated inputs and intensive production, poul- try industry involves generation of large volumes of waste in terms of mortalities, litter etc. One of the main issue and problem presently faced by the poul- try farmers is the accumulation of heavy volumes of waste especially litter manure which poses different social, environmental and economic problems and thus requiring a prompt, regular and responsive dis- posal and removal strategy for attaining a proper http://doi.org/10.53550/EEC.2022.v28i06s.007