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Development of Environmentally Safe Composting Method of Broiler Litter for Use as Feed and Biofertilizer

M.A. Rahman
Department of Animal ScienceBangladesh Agricultural University, Mymensingh-2202

H. Akter
Department of Animal ScienceBangladesh Agricultural University, Mymensingh-2202

R.I. Khan
Department of Animal ScienceBangladesh Agricultural University, Mymensingh-2202

A. Mondal
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202

M.A. Mondal
Departement of Biotechnology, Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

The experiment was carried involving three treatments viz. anaerobic composting broiler litter (T₁), broiler litter with slurry (T₂) and broiler litter with earthworm (T₃) under soil surface to develop a convenient method of composting broiler litter. The sample from composted materials was collected at 0, 20, 40 and 60 days for proximate analysis. Dry matter (DM), ash and nitrogen free extract (NFE) were gradually decreased with the increase of days of composting in every method and also significantly (p<0.01) differed among the treatment. Incase of crude protein (CP), crude fibre (CF) and ether extract (EE), significant (p<0.01) differences were observed among treatments and found increasing rate with prolonged composting. Finally, it may be concluded that proximate compositions of all samples were acceptable up to the end of composting period. But T₂ was more effective than other treatments. So, it could be used as supplementary animal feed or fish feed and also used in vegetables field, nursery, tea garden, betel leaf fields and homestead gardens to improve the soil quality for successful crop production without degradation of environment.

Keywords: Broiler litter, Composting method, Dry matter, Ash and nitrogen free extract

Location: Department of Animal Science, Bangladesh Agricultural University, Mymensingh

Start Date: 00-02-2007

End Date: 00-03-2007

Program Area: Crop-Soil-Water Management

Commodity: Bio fertilizer

Objectives:

1. To develop a cost effective, easy and quick composting method for the proper management of broiler litter, pre and post treatment evaluation of broiler litter and to determine the utility of the post treated broiler litter.

Methodology:

The research was conducted at the Department of Animal Science, Bangladesh Agricultural University, Mymensingh. The broiler litter was collected from a private broilers farm Boyra, Mymensingh for a period of 5 weeks. The broiler litter was carried into sac at the Animal Science Field Laboratory and stored in air tight condition. A place of comparatively high land at Animal Science Field Laboratory was selected to prepare holes where rain water was not logged. At first the place was cleaned and then 9 similar holes were prepared whose diameter was 21 inch and depth 11 inch. After collection the broiler litter was mixed properly and divided in 3 parts at the rate of 30 kg and then three treatment were practiced i.e., only broiler litter in one part (T₁), 3kg slurry mixed with another part (T₂) and 750g earthworm mixed with rest of the part (T₃). Every treated and untreated broiler litters was divided into 3 equal parts for three replications and filled the previously marked holes located in the Animal Science Field Laboratory, covered with three inches soil layer and kept for composting for 60 days. During this composting period, average hole temperature was recorded at 32⁰C which was very much comfortable to production of compost. The process of composting emitted very little odor. The samples were taken at 0, 20, 40 and 60 days for physical and chemical analysis. Representatives samples broiler litter with and without treatments before and other composting were analyzed in the laboratory of Animal Science Department and Bangladesh Institute of Nuclear Agriculture (BINA) for the determination of dry matter (DM) organic matter (OM), crude protein (CP), Crude fibre (CF), ether extract (EE), ash. All the samples were analyzed in duplicate and mean values were recorded. The data were analyzed following factorial design in Completely Randomized Design (CRD) and mean values were tested for difference with Standard Error of Mean (SEM) using statistical package MSTAT-C program. Mean values were tested with DMRT (Duncan’s Multiple Range Test).

Source of Information: J. Agrofor. Environ. 2(1): 1-6, 2008; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Dry matter (DM), ash and nitrogen free extract (NFE) were gradually decreased with the increase of days of composting in every method and also significantly (p<0.01) differed among the treatment. Incase of crude protein (CP), crude fibre (CF) and ether extract (EE), significant (p<0.01) differences were observed among treatments and found increasing rate with prolonged composting. Finally, it may be concluded that proximate compositions of all samples were acceptable up to the end of composting period.

Knowledge Management: Journal