Preparation of Wastelage using Poultry Droppings and Wet Rice Straw as a Cattle Feed

Mst. Sayla  Sharmin; Md. Rokibul Islam  Khan; A.K.M. Ahsan  Kabir; Md.  Sharifuzzaman; S.M. Ariful  Islam; Sharifa  Aktar

Authors

Mst. Sayla Sharmin Government Poultry Farm, Sirajganj, Bangladesh
Md. Rokibul Islam Khan Department of Animal Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
A.K.M. Ahsan Kabir Department of Animal Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
Md. Sharifuzzaman Department of Livestock Science and Veterinary Medicine, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj-8100, Bangladesh
S.M. Ariful Islam Department of Animal Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
Sharifa Aktar Department of Animal Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Keywords:

Wet rice straw, Ensiling, Digestibility, Nutritive value, Metabolizable energy

Abstract

An experiment was conducted with wet rice straw (WRS) treated with poultry droppings (PD) and molasses to increase the nutritional and preservation quality by ensiling. Five different combination was prepared as T₀ (100% WRS), T₁ (5% Molasses + 95% WRS), T₂ (5% PD+ 5% Molasses+ 90% WRS), T₃ (10% PD + 5% Molasses+ 85% WRS) and T₄ (15% PD+ 5% Molasses+ 80% WRS). The mixed ingredients were preserved in plastic containers under airtight condition at room temperature. Physical quality, chemical composition, in-vitro organic matter digestibility (IVOMD) and Metabolizable Energy (ME) content at 0, 30, 45, 60 and 90 days were measured and calculated. The physical quality (color, smell, and hardness) of straw improved in PD added treatments till 90 days of ensiling except in T₄ where some pungent smell was found after 60 days. The pH value was decreased (P<0.05) with the increasing of droppings and ensiling time as expected. The significantly (P<0.05) highest average crude protein (CP) and lowest average ether extract (EE) and crude fiber (CF) content was found in T₄ indicating greater fermentation rate with greater proportion of poultry droppings. Dry matter, EE and CF content were found highest in T₀ which indicate poor fermentation. The CP increased (P<0.05) and DM, EE and CF decreased (P<0.05) with the increasing of ensiling time from 0 to 90 days. The ash content decreased (P<0.05) significantly with the increase of PD and ensiling time. The Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) content increased (P<0.05) with the PD level. The highest OMD and ME content were found to be 56.46% and 6.98 MJ/Kg DM in T₄ and the lowest OMD and ME content were found to be 53.31% and 4.88 MJ/Kg DM in T₀, respectively. Considering all the physical and chemical properties among all the treatments T₃ (10% PD + 5% Molasses+ 85% WRS) can be marked acceptable for preparing ensilage as the dark chocolate color, pungent odor and presence of fungus in later stage of T₄ may result in rejection by cattle. Proper ensiling of WRS with PD will not only reduce waste disposal hazards and environment pollution problem but also provide inexpensive feed components for ruminants.