Abstract:Four field experiments were carried out with Binadhan 7 at Birgonj, Dinajpur; Debigonj, Panchagarh; Kaligonj, Lalmonirhat and Pirgonj, Rangpur during T.aman (kharif II) season of 2011 in the Old Himalalayan Piedmont Plain (AEZ 1) and Tista Meander Floodplain Soils of North-West Bangladesh. The experiments were designed with eight treatments and laid out in randomized complete block design (RCBD) with three replications. The treatment combinations were: T 1 (100%STB), T 2 (T 1 +

An experiment was conducted with Napier grass (NG) treated with Poultry droppings (PD) and rice straw and ensiled with molasses to increase the nutritional and preservation quality of Napier grass. Chopped Napier grass was preserved in plastic containers under airtight condition at room temperature based on the treatments T0 (0% PD), T1 (15% PD), T2 (30% PD) and T3 (45% PD) with 5% molasses and 20% rice straw as fresh basis in each treatment to investigate physical quality, chemical composition, in vitro organic matter digestibility (IVOMD) and metabolizable energy (ME) content at 0, 30, 45, 60 and 75 days. The physical quality (color, smell, and hardness) of Napier grass mixer were improved in Poultry droppings added treatments till 75 days of ensiling. The pH value was decreased (P<0.05) with the increasing of PD and ensiling time. The dry matter (DM), crude protein (CP) and ash were increased (P<0.05) and crude fiber (CF) was decreased (P<0.05) in all the treatments (T1, T2 and T3) compared to control one T0. The CP, DM and ash were increased (P<0.05) and CF and EE were decreased (P<0.05) after ensiling. The EE content was not signified (P>0.05) between T1 and T2. The CF content was decreased (P<0.05) with the increase of Poultry droppings and ensiling time. The organic matter digestibility (OMD) and metabolizable energy (ME) content were increased (P<0.05) with the PD level and ensiling time. Considering all the physical and chemical properties, among all the treatments, 30% and 45% PD are acceptable for preparing wastelage. Thus cost effective and environment friendly feed can be prepared. Bang. J. Anim. Sci. 2019. 48 (1): 48-56

Abstract:The economic rate of nutrients was determined with eight different fertilizer treatment applied on T. aman rice (var. Binadhan-7) in Old Brahmaputra Floodplain Soils (AEZ-9) during 2012 and 2013 at Trisal, Mymensingh. The experiment was laid out in a randomized complete block design (RCBD) with three replications. The treatment combinations were: T 1 (N 64 P 14 K 28 S 6 Zn 1 ), T 2 (N 80 P 14 K 28 S 6 Zn 1 ), T 3 (N 80 P 17.5 K 28 S 6 Zn 1 ), T 4 (N 80 P 14 K 35 S 6 Zn 1 ), T 5 (N 64 P 17.5 K 35 S 6 Zn 1 ), T 6 (N 80 P 17.5 K 35 S 6 Zn 1 ), T 7 (N 48 P 10.5 K 21 S 4.5 Zn 0.75 ), and T 8 (control). Grain and straw yields were significantly affected by the application of fertilizers at different rates. Results revealed that the average highest grain (4.86 t ha ) was recorded in treatment T 3 (N 80 P 17.5 K 28 S 6 Zn 1 ) which is 132.54% and 86.06% respectively higher over control treatment. The second highest grain yield (4.77 t ha ) was recorded in T 6 treatment. Average (2012Average ( & 2013 nutrient uptake (grain and straw) was the highest in T 3 treatment. Partial budget analysis demonstrated the highest net benefit of Tk. 69,673 ha -1 in T 6 followed by Tk. 68,833 ha -1 in T 3 and the highest MBCR (4.29) was obtained in T 3 treatment. The present investigation suggests that treatment T 3 (N 80 P 18 K 28 S 6 Zn 1 ) might be the best profitable fertilizers dose to sustain Binadhan-7 rice production in Old Brahmaputra Floodplain Soils.

There is a growing interest to researchers in human and animal studies through the addition of medicinal plants or their derivatives to their feeds due to the presence of bioactive compounds. A study was carried out to monitor growth performance, fecal microbial loads and nutrient digestibility in crossbred (Local x Holstein Friesian) growing calves. Treatment groups were: HFA1 (CON: Control group, basal diet: green grass + concentrate), HFA2 (CON + fruit of Emblica officinalis Gaertn. 0.5% in-feed and 0.1% in-water), HFA3 (CON + fruit of Terminalia bellirica Gaertn. Roxb. 0.5% in-feed and 0.1% in-water), and HFA4 (CON + fruit of Terminalia chebula Retz. 0.5% in-feed and 0.1% in-water). Addition of local herbal feed additives (HFA2, HFA3 and HFA4) improved weight gain and gain to feed ratio (p<0.05). Fecal microbiological study indicated that, fecal pathogenic E. coli was suppressed, however, Lactobacilli sp. and their ratio was elevated in HFA2, HFA3 and HFA4 relative to HFA1 (p<0.05). Digestibility of DM was upgraded whereas digestibility of CP was down-trended in herbal treated group as compared to control group (p<0.05). Thus, utilization of local herbal feed additives in the diet (in-feed and in-water) of crossbred growing calves might be evocative for promoting the growth performance rather than utilizing synthetic growth promoters

Bio-slurry, a byproduct of biogas plant is not using properly and most of the cases causing environmental and social hazard by discharging it in public places though it rich in nutrients especially protein (16-20% CP) and produced through beneficiary anaerobic microorganisms. On the other hand, Straw is highly fibrous residue having low protein (CP <3%) content which mostly indigestible. The poor digestibility of straw is further caused by the presence of high amount of inhibitory mineral element called silica. The combination of low intake, low degradability, low nitrogen content and an imbalanced mineral composition means that rice straw alone may not even meet the animal's maintenance needs. Therefore, the animals are suffering from nutrients deficiencies resulting in poor health and productivity of these animals reared on straw based ration. Under this situation, it is essential to find out the ways and means to increase the supply and quality of feed to livestock to fulfill their deficiencies. So, the way to improve the crude protein, metabolizable energy and preservation quality, wet rice straw can be ensiled with biogas slurry. The principles of ensiling process of straw are maintenance of anaerobic conditions throughout the ensiling and rapid decline in pH value by lactic acid bacteria. Ensiling of wet rice straw along with biogas slurry may produce a good quality ensilage for feeding cattle having desire palatability, nutrient content and digestibility and also reduce the environmental pollution.