The use of poultry droppings as a feed ingredient may not only reduce waste and environmental pollution but also provide inexpensive feed components for ruminants. An experiment was conducted to prepare wastelage in the field laboratory of Animal Science Department, Bangladesh Agricultural University, Mymensingh. Rice straw (Oryza sativa L.) was mixed with 0%, 10%, 20% and 30% caged layer excreta (CLE) and 5% molasses in each treatment on dry matter (DM) basis and ensiled in air tight container under room temperature. After 60 days, ensiled mixture was opened. All the wastelage had desirable smell, light brownish color, soft texture and no fungal growth was found. Results revealed that PH, DM, crude protein (CP), crude fiber (CF), ash, in vitro organic matter digestibility and metabolizable energy were significantly (p<0.05) influenced by different levels of CLE. The highest CP (5.97g/100g DM) was observed in wastelage with 30% CLE (p<0.05) followed by 20% and 10% CLE. The PH level, DM, Ash and CF contents were decreased linearly (p<0.05) from 4.8 to 4.11, 78.00 to 55.63, 25.08 to 17.70 and 22.57 to 14.95%, respectively as the level of CLE increased from 0 to 30%. In all treatments, EE content was not significantly influenced by the different level of CLE. The in vitro organic matter digestibility (IVOMD) and metabolizable energy (ME) also increased significantly (p<0.05) with the increased level of CLE and maximum value (57.51%, and 8.12 MJ/Kg DM, respectively) was obtained in wastelage with 10% CLE, which is statistically identical with 20% CLE. Therefore, it could be speculated that ensiling rice straw with up to 20% CLE improved the feeding value of wastelage.Asian J. Med. Biol. Res. September 2018, 4(3): 251-258
An experiment of treated and ensiled wet rice straw with urea and molasses was performed to explore the chemical composition, physical quality, in vitro digestibility and its potentiality as a quality feed for ruminants. In this experiment, plastic containers were used to preserve chopped wet rice straw under airtight condition based on the treatment as T1 (wet rice straw only), T2 (straw with 5% molasses), T3 (straw with 5% urea), T4 (straw with 5% urea and 5% molasses) and T5 (straw with 10% urea and 5% molasses) to analyze chemical composition, physical quality, metabolizable energy (ME) content, in vitro organic matter digestibility (OMD) and in vitro gas production (IVGP) at five different ensiling times of 0, 30, 45, 60 and 90 days. The physical quality (color, smell, softness characteristics) of wet rice straw was improved with urea and molasses treatment. Treatments T5 was found better as there was no fungal growth till 90 days of ensiling. The addition of urea and molasses improved the physical quality, nutritive value and preservation quality of wet rice straw. Urea and molasses treated and ensiled (T5) straw showed better color, nutritional quality, softness and longer preservation capacity compared with all treatments followed by T4, T2 and T3. The crude protein (CP) content was increased (P<0.05) but the crude fibre (CF), dry matter (DM), ash contents and ether extract (EE) were decreased (P<0.05) in all of the treatments (T2, T3, T4 and T5) compared to control (T1). The OMD, IVGP and ME contents were increased in all of the treatments (T2, T3, T4 and T5) compared to control (T1). The highest OMD, IVGP and ME values were observed in treatment T5 and the lowest values were in control (T1) Through the Consideration of all the chemical and physical properties, among all of the treatments, 10% urea and 5% molasses are found acceptable for the preservation of rice straw. Thus, environment friendly and cost effective feed can be formulated.
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