Asian-Australasian Journal of Bioscience and Biotechnology最新文献

{"title":"Assessment of subclinical mastitis in milch animals by different field diagnostic tests in Barishal district of Bangladesh","authors":"Jaisan Islam, F. I. Rume, Isart Jahan Liza, P. Chaudhary, A. Anower","doi":"10.3329/aajbb.v4i1.64872","DOIUrl":"https://doi.org/10.3329/aajbb.v4i1.64872","url":null,"abstract":"This study was carried out to assess the prevalence of subclinical mastitis in milch animals by different field diagnostic tests. A total of 100 milk samples (40 cow, 40 buffalo and 20 goat) were culled to pursue this study which were subjected to physical assay and subsequently screened for subclinical mastitis by using 5 different field diagnostic tests viz. California Mastitis Test (CMT), White Side Test (WST), White Side + Dye Test (WSDT), Surf Test (ST) and Surf + Dye Test (SDT). Overall prevalence of subclinical mastitis (SCM) found in this study was 42.5%, 32.5% and 35% in cow, buffalo and goat respectively. Higher prevalence of SCM was detected in cow (47.06%) and buffalo (53.85%) aged between 3 to 5 years whereas in goat (57.15%), 2 to 3 years of age. In aspect of breed, crossbred cow (50%), Murrah buffalo (40%) and Jamunapari goat (50%) were found more affected with SCM. The prevalence of SCM was higher in cows of 3rd parity (41.18%), buffaloes of both 2nd and 3rd parity (30.77%) and goats of 2nd parity (42.86%). Animals being in mid lactation gave more positive cases (46.67% cow, 46.67% buffalo and 42.85% goat). SCM was found in higher prevalence in high yielding animals and in animals that were not being subjected to hygienic milking practice. Among the 5 diagnostic tests, SCM detection efficacy in comparison was higher by CMT. So as SCM has been found to be a major ascending risk in the area, the hygienic milk production activity in this area as a whole requires an intervention including further investigation on the etiological agents associated with prevalence of mastitis to undertake measurable control options of mastitis in the area. \u0000Asian Australas. J. Biosci. Biotechnol. 2019, 4 (1), 24-33","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130901908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The growth and leaf yield performance of several coriander varieties as influenced by organic nutrient sources during summer","authors":"Md. Shahanur Islam, A. H. Solaiman, S. Arefin, R. Islam","doi":"10.3329/aajbb.v4i1.64870","DOIUrl":"https://doi.org/10.3329/aajbb.v4i1.64870","url":null,"abstract":"Coriander (Coriandrum sativum L.) has wide reputation as spice and culinary herb. An experiment was carried out to promote off-season organic coriander leaf cultivation in Bangladesh. The study was conducted at the horticulture farm of Sher-e-Bangla Agricultural University, Dhaka, replicated thrice with two factors; variety (V1Green aroma, V2 Green giant and V3 Indian variety) and organic nutrient source (T0  Control, T1  Cowdung @ 10 t ha-1, T2 Vermicompost @ 3 t ha-1), repeated over five months (March, April, May, June and July) in Randomized Block Design. Data were recorded on several growth and yield parameters. March sown seeds were recorded for highest plant height (19.0 cm), fresh weight of plants per m2 (1359.67 g) and leaf yield (13.6 t ha-1). Results revealed that treatment combination, V2T1 performed better in terms of foliage yield with its best performance (12.17 t ha-1) in March. It was also the best performer for sowing time April (5.14 tha-1), May (3.92 t ha-1) and July (3.16 t ha-1). \u0000Asian Australas. J. Biosci. Biotechnol. 2019, 4 (1), 14-23","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131902912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of mulch and organic amendment on yield performance of dry direct seeded BORO rice","authors":"Nazmus Sayadat, M. Rahman, A. Kabir, Khondokar Kamruzzaman, Md. Azizur Rahman, M. Billah, Subrato Mojumder, M. Islam","doi":"10.3329/aajbb.v4i1.64944","DOIUrl":"https://doi.org/10.3329/aajbb.v4i1.64944","url":null,"abstract":"An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from February to June 2018 with a view to study the effect of mulch and organic amendments on growth and yield performance of BRRI dhan58 under dry direct seeded boro rice production system. The experiment included two set of treatments. A. Mulch (M1=rice straw mulch @ 7 t ha-1 and M2=No mulch) and B. Organic amendments (T1=Trico-compost (TC) @ 5 t ha-1, T2 =Farm Yard Manure (FYM) @ 5 t ha-1, T3 =Mustard Oil Cake (MOC) @ 0.5 t ha-1, T4= Trico-compost (TC) @ 5 t ha-1 + Mustard Oil Cake (MOC) @ 0.5 t ha-1, T5 = Farm Yard Manure (FYM) @ 5 t ha-1 + Mustard Oil Cake (MOC) @ 0.5 t ha-1, T6=Control). The experiment was laid out in a split-plot design with mulch in the main plot and organic amendments in the sub-plot. The treatments were replicated three times. The higher plant height (95.90 cm), no. of effective tillers hill-1 (11.48), 1000-grains weight (24.75 g), grain yield (5.34 t ha-1), and straw yield (7.38 t ha1) were found from rice straw mulch plots. The highest plant height (103.40 cm), panicle length (23.24 cm), no. of grain panicle-1 (118.79), 1000-grain weight (25.23 g), grain yield (5.67 t ha-1), straw yield (7.80 t ha-1), biological yield (13.47 t ha-1) and harvest index (42.06%) were found from treatment T4 (Tricho compost+Muatard Oil Cake). The crop grown with recommended rate of fertilizers (T6) gave the worst performance. The interaction between mulch and organic amendments were not significant for grain yield. Thus the study concludes that rice straw mulching gives better yield than no mulch plots and the organic amendment is better than recommended inorganic fertilizer application. \u0000Asian Australas. J. Biosci. Biotechnol. 2019, 4 (1), 48-59","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133313484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of submergence durations on yield and yield contributing characters of hybrid and inbred aman rice","authors":"N. Akhter, K. Ahamed, M. Akter, Md. Mohidur Rahman, M. S. Rahman","doi":"10.3329/aajbb.v3i3.64833","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64833","url":null,"abstract":"The trend of increasing submergence has a negative effect on the rice yield but among them, some of the genotypes show the excellent performance to give a satisfactory yield. The experiment comprised of two factors-factor a: submergence duration (4): control, 6 days, 10 days and 14 days and factor b: rice variety (6): hybrid (BRRI Hybrid dhan3, ACI Shankar and Heera-2) and inbred (BRRI dhan34, BRRI dhan46 and BRRI dhan51). The experiment was laid out in a randomized complete block design (RCBD) with three replications. Significant variation was found on different yield contributing characters and yield with submergence durations. In all the varieties, the control treatment (0 days submergence) showed the highest values (except the number of unfilled spikelets panicle-1) and was gradually decreased with increasing submergence duration from 6 days to 14 days. The lowest reduction due to submergence was recorded in BRRI dhan51, which was followed by BRRI dhan46. Attaining better yield, which was near about control, the varieties BRRI dhan51 and BRRI dhan46 proved them as relatively submergence tolerant compared to other varieties. \u0000Asian Australas. J. Biosci. Biotechnol. 2018, 3 (3), 225-230","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"48 25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117065806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of different dairy cattle diseases in selected dairy areas and farms of Bangladesh","authors":"Md. Azharul Islam Talukder, Seikh Masudur Rahman, Md. Abu Haris Miah, M. Shahjahan, M. Ali, M. Alam, M. Kabir, S. Munira, Mostain Billah, Md. Rezwanul Habib","doi":"10.3329/aajbb.v3i3.64834","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64834","url":null,"abstract":"The present study was designed to have a comprehensive epidemiological data of the circulating diseases in Pubna cattle in Pubna and sirajgonj districts of Bangladesh. Two sites were selected for the study as the Nucleus Breeding Hard (NBH); which is located in the BLRI-RS, Baghabari, Sahjadpur, Siragjang and the community; consists of three villages of Bera upazila of Pabna district namely Khar-bagan, Hatail-aralia and Char-sabolla. The total cattle population was 576 (506 in the community and 70 in the NBH). The overall weather was hot and humid. A total of 965 clinical cases of cattle of different age and sex were diagnosed during the period from July, 2017 to June, 2018.The descriptive statistics suggested that endo-parasites (15.67%), FMD (27.51%), non-specific diarrhea (7.73%) and post-partum anoestrus (7.78%) are the most prevailing diseases in the community and endo-parasites (21.82%), foot-rot (15.15%), non-specific fever (7.27%), dermatochalasis (5.45%) and conjunctivitis (4.85%) are the most prevailing diseases in the NBH. Population data shows that there was an endemic outbreak of FMD in the community between March to May 2018 where almost 50% cattle were affected by the disease though calf morbidity was low (2.69%) but all the affected calf died. Non-specific diarrhea was more common in older individuals (14% in over 3years old cattle) mostly in cows (14.2%) and occurred in summer (9.84%) and winter (8.81%) may be because of the ignorance of the farmers to supply clean water to their animals. Although, we routinely de-worm our cows in the community and in the NBH round the year we found many cases of parasitic gastro-enteritis in both the locations which suggested that our de-worming practice is not working. Repeated study of the same kind can provide us a large set of data on cattle disease prevailing in the area which may provides valuable insight to design and implement priority based research on specific disease and to take efficient control strategies against that disease. \u0000Asian Australas. J. Biosci. Biotechnol. 2018, 3 (3), 231-236","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125510039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yield gap of major crops in sadar upazila of Mymensingh district","authors":"S. M. Mehedi, Farhana Yeasmin, M. E. Haque, M. Islam","doi":"10.3329/aajbb.v3i3.64821","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64821","url":null,"abstract":"The aim of this study was to ascertain yield and yield gap status of major crops. The study was conducted in two villages of sadar upazila under the Mymensingh district. Ninety farmers were selected as sample size following proportionate random sampling technique. The researcher himself personally collected data during mid-March to mid-May 2014. Collected data were compiled, coded, analyzed and interpreted as per objectives of the study. It was found that majority of the respondents were middle-aged having a primary level of education, medium farm size, small family size with low agricultural knowledge but the favorable attitude towards the current agricultural system. Boro rice, Mustard, Bitter gourd, and Black gram are the major crops of the study area. Yields of Boro rice, Mustard, Bitter gourd and black gram in farmers' field were found 5,295 Kg/ha, 703 Kg/ha, 12,654 Kg/ha and 771 Kg/ha with mean yield gap of 704 Kg/ha, 396 Kg/ha, 9,345 Kg/ha and 628 Kg/ha, respectively. Farmers' characteristics like age, farming experience, agricultural training, knowledge about agriculture and attitude towards agricultural practices found negatively related to their yield gap of the major crops. \u0000Asian Australas. J. Biosci. Biotechnol. 2018, 3 (3), 174-181","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129260076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the hormonal profile in crossbred dairy cows in relation to repeat breeding at Baghabari milk shed areas, Bangladesh","authors":"Mohammed Sirajul Islam, M. Ali, M. Ershaduzzaman, R. Khatun, Md. Abu Yousuf, M. Alam, Seikh Masudur Rahman, M. Kabir, Most. Sumona Akter, M. Rana, N. R. Sarker","doi":"10.3329/aajbb.v3i3.64835","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64835","url":null,"abstract":"Repeat breeding (RP) is a one of the most significant problem in dairy cattle because it increased production cost of insemination, treatment, feed, labor and management and also increased calving interval with decreased milk production. This study was conducted at the different Bathan areas of Shahjadpur Upazila under Sirajgonj district. The total of 30 repeat breeder cows was selected randomly to determine their reproductive hormonal profile before and after synchronization at the selected areas and repeat breeder cows were marked by ear tag and collected breeding history of each individual cow. All experimental RP were synchronized by the administration of GnRH (day- 0), PGF2α (day-7) and Artificial Insemination (AI) with GnRH (day-9). Blood samples were collected before and after synchronization during standing heat period of estrous cycle of each cow. The total experiment was done and analyzed in the laboratory by using endocrine detection kits (Mono LelacR USA). This present study revealed that the level of luteinizing hormone (LH), follicle stimulating hormone (FSH), progesterone (P4) were significantly differed between repeat breeder cows and synchronized repeat breeder cows. These findings clearly indicated that reproductive hormonal aberrations might be one of the major causes of repeat breeding in Baghabari milk shed areas. \u0000Asian Australas. J. Biosci. Biotechnol. 2018, 3 (3), 237-240","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114902162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Culture strategies, diseases and their mitigations in mono-sex Nile tilapia farming in Jessore sadar region, Bangladesh","authors":"Chinmoy Biswas, M. M. Hossain, Abdulla- Al-Asif, Baadruzzoha Sarker, M. Billah, Md. Sahadat Ali","doi":"10.3329/aajbb.v3i3.64823","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64823","url":null,"abstract":"A survey was carried out to investigate culture strategies, disease patterns and mitigations in mono-sex Nile tilapia in Jessore sadar region. Data obtained by questionnaire interview, individual interview, telephonic interview, PRA method, mono-sex Nile tilapia farm survey from four villages. It was observed that 30.769% farmers and farm owner had no training about culture of mono-sex Nile tilapia while 69.230% farmers and farm owner received short term training from different Department of Fisheries, different NGOs. Mono-sex Nile tilapia culture in ponds was basically a three-tier culture system. Pre-stocking management of ponds in the study area comprised dike repairing, aquatic weed control, waste soil removal and undesirable species (predator and trash fish) control. Majority (85%) of the farm owners and farmers depends on ground water and only (15%) depends on surface water. About 95% of farm of farm owners controlled aquatic weeds manually. Removal of predatory and undesired fish from pond used different types of chemicals but most used rotenone (80%). Fertilizer of pond preparation (Organic and inorganic) in the study area but mostly used cases inorganic fertilizers had applied at the rate of urea 114 kg/ha and triple superphosphate 60 kg/ha in 4–5 installments. Stocking density of mono-sex Nile tilapia was 200-380 fry per decimal. It was recorded that 85% of mono-sex Nile tilapia farmers and farm owner applied supplementary such as commercially manufactured feed and 12% are applied of farm made feed. It was observed,they provided heavy fertilizer, high stocking density, over feed provided, provided over dose drugs so ultimated result of disease occured. Parasitic related disease, bacterial diseases, fungal diseases, viral diseases were attacked in mono-sex Nile tilapia. Argulosis and Streptococcus were mostly common disease in this mono-sex Nile tilapia farm. \u0000Asian Australas. J. Biosci. Biotechnol. 2018, 3 (3), 190-200","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132883684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of rotten orange as a source of inorganic nutrients for blue green algae, Spirulina platensis culture","authors":"Md. Mijanur Rahman, Md Mia, Baadruzzoha Sarker, M. Fakhruddin, M. Habib, M. Karim, N. Hoque","doi":"10.3329/aajbb.v3i3.64825","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64825","url":null,"abstract":"A study was conducted to examine the culture and growth performance of Spirulina platensis in three different concentrations (25, 50 and 75 percent) of digested rotten orange (DRO) and Kosaric medium (KM) as control for three months. Each experiment was done in triplicates under fluorescent light in light: dark (12 hour: 12 hour) condition for a period of 14 days. Cell weight, chlorophyll a content of Spirulina platensis and physico-chemical parameters of cultured media (temperature, pH, light intensity) were measured at every alternative day. During the culture period, temperature was more or less similar and ranged from 30.1 to 31.4˚C. The range of light intensities was recorded from 2660 to 2770 lux/ /s during the culture period. The maximum pH was recorded 9.9 in 25% digest rotten orange (DRO) on 8th day of the culture and minimum was recorded 8.2 in all the medias on the initial day of the culture. The growth rate of Spirulina platensis cultured in supernatant of DRO and KM were varied. The initial cell weight of Spirulina platensis was 0.0023 mg/L that attained maximum cell weight of 12.44 mg/L in Kosaric medium on the 10th day of culture. Besides that,  the maximum cell weight was 7.679, 12.366, and 9.455 mg/L when cultured in supernatant of 25, 50, and 75% in DRO on the 10th day of the culture. While, the initial chlorophyll a content of Spirulina platensis was 0.0015 mg/L which attained the highest content of 10.54 mg/L when grown in KM. The highest chlorophyll a content of Spirulina platensis was 6.926 mg/L when grown in 25% DRO, it was 10.476 mg/L when grown in 50% DRO, and it was 9.140 mg/L when grown in 75% DRO on the 10th day of the culture. This study showed that, the growth performance of Spirulina platensis was higher in supernatant of 50% DRO than 25 and 75% DRO.  This concentration of medium gave satisfactory results compared with standard KM. This variation probably occurred because of differences in nutrient concentrations and composition of the medium. Therefore, it can be concluded that, the concentration of 50% DRO is suitable and favorable for Spirulina platensis culture. \u0000Asian Australas. J. Biosci. Biotechnol. 2018, 3 (3), 208-224","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"566 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122051857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Managemental perspectives in livestock production system associated with the reduction of antibiotic usage in veterinary practices: Bangladesh perspectives","authors":"Md Zobidul Kabir, Alam Khan, M. Rahman, Moizur Rahman","doi":"10.3329/aajbb.v3i3.64822","DOIUrl":"https://doi.org/10.3329/aajbb.v3i3.64822","url":null,"abstract":"Antibiotic drugs have identified to be one of the most valuable tools in preserving both human and animal health. With an increase in the use and availability of antibiotics, antibiotic residues in animal origin food as well as antibiotic resistance have become important public health concern and have received much attention from government agencies, consumer level, media and other concerned public interest groups. The main objectives of the study were to identify the managemental perspectives in livestock production system associated with the reduction of antibiotic usage in veterinary practices so that the development of relevant strategies for reducing antibiotic usage in veterinary practices could be achieved in context of environmental realities in Bangladesh. The survey was interpretive in nature using quantitative methods. A non-experimental and descriptive research design was used to conduct this study. The survey study was carried out at existing seven divisions (i.e. Rangpur, Rajshahi, Khulna, Dhaka, Sylhet, Barishal and Chittagong/ Chattogram) in Bangladesh during July, 2012 to June, 2018 (upto final reporting) by survey method using close ended questionnaires among randomly selected respondents (i.e. 390 Government Veterinary Surgeons as well as 390 Upazila Livestock Officers of DLS, Bangladesh). Survey instruments were also designed to capture the perspectives of two different groups of government veterinarians: Group 1– Veterinary Surgeons of DLS, Bangladesh and Group 2 – Upazila Livestock Officers of DLS, Bangladesh.  Collected data were analyzed using SPSS (version 20.0, SPSS Inc., Chicago, IL) software. The findings indicated the knowledge, beliefs and perceptions of respondents. The research findings divulge that different managemental perspectives/dimensions in livestock production system associated with regular veterinary examination, allocation of appropriate nutrition, routine vaccination, arrangement of effective bio-security, use of probiotics, supply of hygienic water, arrangement of holistic therapies, arrangement of clean bedding as well as hygienic housing management, use of organic acids (e.g. Formic, acetic and propionic acids), use of plant extracts (e.g. essential oils of thyme, clove, turmeric, black pepper etc.) in poultry feed, use of prebiotics like Fructo Oligosaccharides(FOS), Manna Oligosaccharides(MOS) etc. in poultry feed, arrangement  of hygienic as well as good quality feed management and maintaining hygienic air quality in the farming system had ‘moderate to substantial role’ in livestock production system for reducing antibiotic usage in veterinary practices in Bangladesh.  Findings also indicated that the two groups of veterinarians possessed near to similar/same perceptions across different managemental perspectives in livestock production system associated with the reduction of antibiotic usage in veterinary practices in Bangladesh and that no significant differences in perspectives existed (p> .05)","PeriodicalId":184754,"journal":{"name":"Asian-Australasian Journal of Bioscience and Biotechnology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121866577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}