Ensiling of Wet Rice Straw using Biogas Slurry and Molasses in Monsoon of Bangladesh

Abstract

This paper presents an experiment of the preparation of ensilage with wet rice straw (WRS) treated with biogas slurry (BGS) and ensiled with molasses to increase the nutritional and preservation quality of straw in monsoon season of Bangladesh in the Department of Animal Science, Bangladesh Agricultural University (BAU), Mymensingh. Chopped wet straw was preserved in plastic containers under airtight condition at room temperature based on the treatments as T 0 (100% WRS only), T 1 (0% BGS), T 2 (5% BGS), T 3 (10% BGS) and T 4 (15% BGS) with 5% molasses as DM basis in each treatment except T 0 to investigate physical quality, chemical composition, in vitro organic matter digestibility (IVOMD) and metabolizable energy (ME) content at 0, 30, 45, 60 and 90 days. The highest CP content was found to be 7.70% in T 4 and highest DM and EE content were found to be 31.42 and 4.86% in T 0, respectively. The lowest CP and DM content were found to be 4.02 and 21.94% in T 0, respectively and lowest EE content was found to be 3.13% in T 4 . The CP and DM were increased (P<0.05) and EE were decreased (P<0.05) with the increasing of ensiling time from 0 to 90 days. The highest OMD and ME content were found to be 48.46% and 6.98 MJ/Kg DM in T 4 and the lowest OMD and ME content were found to be 34.31 and 4.84% in T 0, respectively. The pH value was also decreased (P<0.05) with the increasing of BGS and ensiling time. Considering all the physical and chemical properties, among all the treatments, T 2 and T 3 are acceptable for preparing ensilage. Ensilage of WRS with biogas slurry will not only reduce waste disposal and pollution problem, but also provide inexpensive feed components for ruminants.

Preparation and nutritional evaluation of wastelage using poultry droppings and napier grass

“…DM was decreased from 22.58 to 20.83% (Otieno et al, 1986) and from 29.1 to 26.5% (Hiep and Man 2003) in ensiled maize stover. It was observed that DM content was decreased with the ensiling time from 31.76 to 27.37%with the increase of duration from 0 to 90 days (Sarker et al, 2018). Losses of DM may come from run off, oxidation and loss of volatile organic compounds (Kung 2010).…”

“…It helps in facilitating the natural preservation by lowering the pH and producing lactic acid bacteria (Premiar, 2006). It increases the palatability and also digestibility of rice straw (Sarker et al, 2018).…”

A comparative study of assessing organic matter decomposition between composting and vermicomposting process

“…Solid and liquid wastes release nitrate and phosphate to the soil and water streams, as well as carbon di oxide, methane, ammonia, hydrogen sulphide, di & tri methyl sulphide gases are released to the air during aerobic and anaerobic decomposition (Ahsan et al, 2014;Lee et al, 2009;Won et al, 2016) due to inappropriate treatment of wastes Sarker et al, 2009;Roy et al, 2013). Cattle manure is a valuable resource as a soil fertilizer, as it provides high contents of macro and micro-nutrients for crop growth and is a low-cost alternative to mineral fertilizers (Ghos et al, 2004;Islam et al, 2010;Rahman et al, 2008;Sarker et al, 2018). Composting and vermicomposting are two well known processes for the utilization of manures that produced composts and vermicompost.…”

Effect of ration on growth and cost of production during fattening of upgraded Shahiwal bulls

“…Livestock is one of the most important components of agriculture that contributes about 6.5% of gross domestic products (GDP) and 14.21% of total foreign exchange earnings in Bangladesh (DLS, 2017, Mustafa et al, 2020. Livestock plays a vital role in the traditional agriculture and largely subsistence economy of Bangladesh (Barman et al, 2017;Baset et al, 2003;Sarker et al, 2018;Rahman et al, 2002;Quddus and Rahman, 1998). The rural poor farmers largely depend on livestock (especially on small ruminants) for their survival (Ahmed, 1992).…”