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Preparation of Wastelage with Poultry Droppings and Rice Straw (oryza Sativa L.) as a Cattle Feed

Obydul Islam
Department of Animal Science, Bangladesh Agricultural University, Bangladesh

Somaya Akter
Department of Animal Science, Bangladesh Agricultural University, Bangladesh

Md. Ahidul Islam
Department of Animal Science, Patuakhali Science and Technology University, Bangladesh

Dewan Kamruzzaman Jamee
Department of Animal Science, Bangladesh Agricultural University, Bangladesh

Rokibul Islam Khan
Department of Animal Science, Bangladesh Agricultural University, Bangladesh

Abstract/ Executive Summary:

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 P^H, 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 P^H 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.

Keywords: Caged layer excreta; Rice straw; Ensiling; Digestibility; Wastelage

Location: Goat and Sheep farm, Department of Animal Science, Bangladesh Agricultural University, Mymensingh

Start Date: 24-06-2014

End Date: 22-08-2014

Program Area: Animal Health and Management

Commodity: Feed

Objectives:

1. To find out a convenient option of proper recycling of poultry droppings,

2. To evaluate the nutritive value of rice straw ensiled with caged layer excreta (CLE) and molasses in varying proportions as well as

3. To determine the optimum proportion of caged layer excreta (CLE) and ensiling period that will improve the feed value of rice straw.

Methodology:

Collection of experimentalmaterials- Preparation of wastelage and related activities were carried out in the Goat and Sheep farm, Department of Animal Science, Bangladesh Agricultural University, Mymensingh during the period from 24^th June to 22^th August 2014. The laboratory analysis was completed in the Animal Science and Animal Nutrition laboratory of the department of Animal Science and Animal Nutrition, respectively, Bangladesh Agricultural University, Mymensingh. Caged layer excreta and rice straw were collected from Poultry Farm and field of Goat and Sheep Farm respectively, Bangladesh Agricultural University, Mymensingh. For the collection of layer droppings, polyethylene sheet was placed under the cage of birds in the poultry shed. During collection enough care was taken so that the layer droppings would be free from feather, sand or other materials. Molasses, sacks, air tight plastic containers and polythene sheet were purchased from available local market. Preparation of wastelage- The experiment was laid out in a Complete Randomized Design (CRD) with 3 replicate in each treatment. The investigation was carried out to study the using fresh caged layer excreta with rice straw for making wastelage as a feed for cattle. The treatments under the study were T₀ (0% caged layer excreta + 5% molasses + 95% rice straw), T₁ (10% caged layer excreta + 5% molasses + 85% rice straw), T₂ (20% caged layer excreta + 5% molasses + 75% rice straw) and T₃ (30% caged layer excreta + 5% molasses + 65% rice straw). The amounts of all of the above ingredients were measured on DM basis. Rice straw was collected just after harvesting the paddy. After collecting rice straw were chopped about 3-4 cm long. Then wastelage was prepared by mixing previously chopped rice straw with fresh poultry litter and molasses in varying ratios: 95:0, 85:10, 75:20, 65:30 and 5% molasses in each treatment. For proper mixing, caged layer excreta and molasses were mixed primarily and then finally mixed with rice straw. When rice straws were properly mixed with caged layer excreta and molasses, these were placed into air-tight polythene sacks which were previously marked according to the treatment. Finally containers were kept in a room (25 to 28 °C) for 60 days for successful ensiling. Chemical analysis- Portion of poultry droppings and rice straw were dried in the sun and then ground to pass through 40 mm mesh sieve. After grinding, the samples were subjected to chemical analysis for organic matter (OM), crude protein (CP), crude fiber (CF), ether extract (EE) and total ash (Ash) following the procedure of AOAC (2004). Wastelage samples were collected to observe how many days need to get a good wastelage. Finally, they were opened at 60 days. Duplicate wastelage samples were taken and mixed thoroughly, one for DM and pH determination and another one were dried in oven at 55 °C for 72 hours for chemical analysis. PH of the wastelage sample was determined by using a digital laboratory pH-mV meter (Ino. Lab., Germany) after putting 2g sample in 50 ml distilled water. To determine the nutritive value of the wastelage, respective dry samples were subjected to proximate analysis for dry matter (DM), crude protein (CP), crude fiber (CF), ether extract (EE), ash, nitrogen free extract (NFE) following the methods described by AOAC (2004). In vitro organic matter digestibility (IVOMD) and metabolizable energy (ME) content of wastelage were done following the procedure described by Menke et al. (1979). Statistical analysis- The analysis of variance was done by using ‘MSTAT’ and ‘SPSS’ computer package program for a Complete Randomized Design, and differences among the treatment means were determined by Duncan’s Multiple Range Test (DMRT).

Source of Information: Asian J. Med. Biol. Res. 2018, 4 (3), 251-258; ISSN 2411-4472 (Print) 2412-5571 (Online)

Article Link (Online Journal): doi: 10.3329/ajmbr.v4i3.38463

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The use of poultry droppings as a feed ingredient for livestock may be a convenient option of proper recycling of poultry droppings as well as reduce wastes and environmental pollution and also provide inexpensive feed components for ruminants. The addition of caged layer excreta (CLE) and ensiling time helps to improve the nutritive value, physical quality and preservation capacity of rice straw. Rice straw can be ensiled with up to 20% CLE and 5% molasses to improve the feeding values of wastelage highly acceptable for cattle feeding. Further investigation is needed with in-vivo feeding trial to justify the present findings.

Knowledge Management: Journal