VEGETABLE RESEARCH IN BANGLADESH

VEGETABLE RESEARCH IN BANGLADES

Prevalence of Cryptosporidiosis in Crossbred Calves in Two Selected Areas of Bangladesh

A cross-sectional study was conducted to determine the prevalence of bovine cryptosporidiosis using 110 fecal samples of crossbred diarrhoeic calves from two different areas (Muktagacha, Mymensingh and Shajadpur, Sirajgonj) in Bangladesh during April 2012 to September 2014. The fecal samples were screened by rapid detection kit and confirmed by Modified Ziehl- Neelsen staining, and polymerase chain reaction (PCR). The positive samples along with standard positive control yielded 1325bp band on PCR. The overall prevalence of cryptosporidiosis in crossbred calves was 28.18% (31/110) by rapid detection kit. The higher prevalence of cryptosporidiosis was found in the calves from Shajadpur (29.76%) than the calves from Muktagacha (23.08%).The prevalence of cryptosporidiosis was significantly (p&lt;0.001) higher in calves between 1-2 months (70%) age group than less than one month age group (24.49%). Cryptosporidiosis was not observed in calves over two months age. The prevalence of cryptosporidiosis was higher in males (34.75%) than females (24.64%) although not significant statistically. It is evident that the prevalence of cryptosporidiosis in bovine in these areas is under diagnosed and the clinical status of infection is potentially high.DOI: http://dx.doi.org/10.3329/bjvm.v12i2.21288 Bangl. J. Vet. Med. (2014). 12 (2): 185-190 </jats:p

Incidence of reproductive and production diseases of cross-bred dairy cattle in Bangladesh

Reproductive and production disorders (PD) of cross-bred dairy cattle significantly reduce their productivity which is of great concern of dairy producers worldwide because most reproductive disorders adversely affect the future fertility. The present study was conducted to determine the incidence of some reproductive diseases (RD) like abortion, anoestrus, metritis, repeat breeder, retained placenta and one production disease like clinical mastitis in cross-bred dairy cattle in Shahjadpur upazila of Sirajgonj district in Bangladesh. Two hundred fifty (250) farms having at least two cross-bred dairy cattle were randomly selected for this study using an active surveillance system. The study was conducted over a period of twelve months from March 2012 to February 2013. Epidemiological data and samples from diseased cattle were collected and analyzed. The recorded reproductive disorders were diagnosed and treated by the veterinarians on the basis of history, physical examination, clinical and laboratory findings. The incidence rate, cumulative incidence and seasonal incidence of reproductive (RD) and production (PD) disorders were measured. The overall incidence rate and cumulative incidence of RDs and PDs were 33/tcm (10000 cattle-months at risk) and 3.9% respectively. The incidence rate and cumulative incidence of repeat breeder were highest as 11/tcm and 1.29% respectively followed by anoestrus (7/tcm and 0.81%), metritis (3/tcm and 0.34%), retained placenta (2/tcm and 0.27%) and abortion (2/tcm and 0.20%). The incidence rate and cumulative incidence of clinical mastitis were 8/tcm and 1.0% respectively. A decreasing trend of cumulative incidence of mastitis, metritis and abortion was noted from summer, rainy to winter seasons. The cumulative incidence of anoestrus was highest in rainy (0.34%) then summer (0.27%) and lowest in winter (0.21%). The proportionate incidence was highest for repeat breeder (32.76%) followed by mastitis (25.86%) and anoestrus (20.69%). The incidence of the diseases we reported were low in comparison to the published prevalence of these diseases. When the incidence of a disease is low but animals affected have the condition for a long period of time, the prevalence will be high relative to the incidence. Repeat breeder, anoestrus and mastitis should get top priority in reproductive disease research to gain more knowledge and in extension to control them in Bangladesh context. DOI: http://dx.doi.org/10.3329/bjvm.v11i1.17730 Bangl. J. Vet. Med. (2013). 11 (1): 31-36</jats:p

Economic inequality of the badli workers of Bangladesh: Contested entitlements and a ‘perpetually temporary’ life-world

This article discusses the experience of economic inequality of badli workers in the state-owned jute mills of the postcolonial state of Bangladesh, and how this inequality is constituted and perpetuated. Nominally appointed to fill posts during the temporary absence of permanent workers, the reality of badli workers’ employment is very different. They define themselves as ‘a different category of workers’, with limited economic entitlements. We undertake content analysis of the badli workers’ narratives to identify elements that they themselves consider constitute these economic entitlements. We consider their perceptions of discrimination and exclusion and explain how, in response to these feelings, they construct their survival strategy. From this, through the writings of Armatya Sen, we discuss the badli workers’ contextual experience and understanding of economic inequality in relation to extant theoretical understandings, seeking to contribute to the field and to empirical studies in the subaltern context