Impact of Clinical Mastitis in Dairy Farming at Keshabpur Upazilla in Jessore in Bangladesh

Background: Congenital malformations are structural or functional anomalies that occur during intrauterine life and can be identified prenatally, at birth or sometimes only later during life. These congenital defects can evolve from abnormal genetic or environmental factors or a combination of both but the causes of many cases are unknown. The risk factors are associated with congenital defects varies depending on species, breed, body system, geographical location and season. Some congenital malformations can cause death of newborn, while others can only create a structural defect without affecting vital functions and responsible for slowing down of genetic progress and economic loss for the breeders. Congenital defects constitute the at least fifth largest cause of neonatal morbidity and mortality but national estimate of the prevalence of these anomalies are lacking in inland literature. Thus, it is important to estimate the prevalence with identify the causes and risk factors of congenital defects for their possible prevention to minimize the economic losses in animal industry. Objective: The objective of the review was to derive an estimate of the birth prevalence and associated host risk factors of congenital anomalies reported in calves and kids in Bangladesh. Materials and Methods: The occurrence of congenital anomalies in new born farm animals has been reviewed from the first report published in 1975 up to 2021 in Bangladesh. The search was carried out in Google, PubMed, Banglajol and also the original inland journals. Results: All types of search identified 33 inland articles and 35 articles published from foreign nations. Of the 33 available inland articles of which most of the articles based on either single clinical report or data abstracted from veterinary hospital records. Approximately 36 types of congenital malformations were recorded, of which 31 types in cow calves and only five types in kids. Higher occurrence of congenital defects reported in calves (96.95%; n = 1746 cases) than kids (3.05%; 55 cases), but both the calves (56.25%; n = 923) and kids (67.27%; n = 37 cases) affected with atresia ani comparatively higher than other reported congenital malformations. System-wise analysis on prevalence of congenital anomalies found highest prevalence in digestive system (67.18%), followed by ocular system (17.07%), musculoskeletal system (8.42%), urogenital system (2.58%), integument system (2.52%) and others. Comparatively higher prevalence of congenital defects reported in male (65.57%) than female (34.43%) and crossbred (67.03%) than indigenous (32.97%) calves in Bangladesh. Conclusion: Calves and kids born with various congenital defects in their different body systems with highest occurrence of atresia ani in both calves and kids have been recorded. Calves have a great variety of defects than kids probably due to genetic causes. Atresia ani and ocular dermoids are the most frequent occurrence but several cases are still not reported due to lack of disease monitoring system, leading to an underestimation of the real weight of congenital malformations especially in cross-bred cattle. Although some congenital defects can be corrected surgically, the majority cases may not be easily corrected surgically moreover surgically corrected animals may not be used for breeding purposes. Therefore, prevention of the occurrence of congenital defects is required based on the identification of causal factors.

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Comparison of Bacterial Pathogens Associated With Different Types of Bovine Mastitis and Their Antibiotic Resistance Status in Bangladesh

Siddiki¹

2019

JVMOHR

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Background: Mastitis is one of the most prevalent complex diseases of mammals with high economic impact in dairy industry worldwide. Most of the published inland reports on bovine mastitis are mainly based on sub-clinical mastitis and some extent to clinical types. Objectives: The main objectives of this study are (a) to compare the bacterial pathogens associated with sub-clinical, clinical and chronic mastitis, and (b) to detect the antibiotic sensitivity and resistance status of the isolated bacteria from different types of mastitis. Materials and Methods: A total of 539 quarter milk samples, collected from lactating cows of Rajshahi and Mymensingh districts were subjected to standard bacterial culture and biochemical tests during the period of 2010-2011. Antibiogram test was done on bacteria isolated from sub-clinical (n = 444), acute (n = 35) and chronic (n = 60) mastitis cases include Staphylococcus spp., Streptococcus spp., Bacillus spp. and E. coli in 78.54%, 80% and 71.67% milk samples as a single and 21.46%, 20% and 28.33% as mixed infection, respectively. Results: The Staphylococcus spp. was recorded as major pathogen for all the sub-clinical (42.15%), acute (45.71%) and chronic (41.67%) mastitis cases. The right hind quarters were found significantly (p < 0.05) more affected with sub-clinical, acute and chronic types of mastitis than other three quarters in cows. The highest sensitivity (up to 100%) was recorded with gentamicin, ciprofloxacin, oxytetracycline and enrofloxacin against all the tested four organisms isolated from sub-clinical, clinical and chronic mastitis cases. Antibiotic resistance was highly prevalent, especially streptomycin (70-100%), amoxicillin (30-100%) and ampicillin (0-100%) against the four isolated bacteria of three different types of mastitis. Conclusions: It may be concluded that there is a need to establish a nationwide plan for monitoring the resistance of antibiotics and ensure the cautious use of antibiotics in the veterinary medical practices. Keywords: Bovine mastitis, Clinical mastitis, Subclinical mastitis, Chronic mastitis, Mastitic bacterial pathogens and Antibiogram

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Impact of Clinical Mastitis in Dairy Farming at Keshabpur Upazilla in Jessore in Bangladesh

Cited by 3 publications

References 11 publications

Global and countrywide prevalence of subclinical and clinical mastitis in dairy cattle and buffaloes by systematic review and meta-analysis

Global and countrywide prevalence of subclinical and clinical mastitis in dairy cattle and buffaloes by systematic review and meta-analysis

Review on Mastitis in Dairy Lactating Animals and Their Public Health Importance: The 56 Years Bangladesh Perspective

Comparison of Bacterial Pathogens Associated With Different Types of Bovine Mastitis and Their Antibiotic Resistance Status in Bangladesh

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