Abstract
Performance evaluation of existing dairying is important to design relevant dairy development strategies and implement context specific interventions for future development of the dairy enterprise. The present study was carried out to evaluate the clinical trends (reproductive performance and disorders) of dairy cows of Rajshahi district, Bangladesh. A total of 500 cows randomly selected and data were collected directly from the dairy farms owners from 6 upazilas and 4 metro thanas of Rajshahi district by using questionnaires and diagnosis of reproductive disorders (RD) was made on the basis of history, clinical signs and response to treatment. The average reproductive performance (RP) were recorded as age at puberty 26.42±0.22 m, age at first calving 35.48±0.22 m, post-partum heat period 121.85±3.48 days, service per conception 1.93±0.04, days open 136.80±3.57 days and calving interval 401.04±3.94 days. The better RP was found at metro thanas compared to upazilas, though no significant difference was found except on service per conception (p<0.05). The overall prevalence of RD was 78.6% in Rajshahi district. Among the reproductive and productive disorders, anoestrus 24.6% was the highest prevalent disorders followed by abortion 13.4%, repeat breeding 11.4%, retained placenta 10.2%, dystocia 5.4%, mastitis 4.4%, vaginal prolapse 2.4%, pyometra 1.8%, metritis 1.6%, uterine prolapse 1.4%, milk fever 1.2% and still birth 0.8%. The highest occurrence of RD was recorded in Tanore upazila (92%) and the lowest in Poba upazila (62%). In comparison between the upazila and metro thanas the minimum occurrence of RD was recorded in metro thanas (31%) than upazilas (47.6%).
 Asian J. Med. Biol. Res. June 2020, 6(2): 340-350
Highlights
Livestock, an integral part of agriculture, plays an important role to keep the rural economy of Bangladesh viable (Sarma and Ahmed, 2011)
The reproductive performance of dairy cows in different upazilas and metro thanas The reproductive performance of dairy cows in different upazilas and metro thanas of Rajshahi district were presented in Table 1 and we found significant (p
Reproductive performance of dairy cows in Rajshahi district of Bangladesh Infertility problems that usually overlooked by the farmers, imbalance and undernourished feed management of dairy cows and calves, unavailability of pasture land, inadequate veterinary services, and unawareness of farmers in herd health management are the burning issues, which seriously affects the farm economy in Bangladesh (Shamsuddin et al, 2001)
Summary
An integral part of agriculture, plays an important role to keep the rural economy of Bangladesh viable (Sarma and Ahmed, 2011). The contribution of the livestock sector to overall GDP has been provisionally estimated at 1.78% for 2013-14 (BER, 2014) and its share of agricultural GDP in 2013-14 was 14.08% (provisionally estimated). Despite its modest share of overall GDP, livestock serves an essential role as a source of protein, employment generation, export earning, and provision of food security. Livestock resources play an important role in the sustenance of landless people, livelihood options for the rural poor families and are potentially important for poverty reduction (FAO, 2009). The importance of livestock production has increased in Bangladesh as witnessed by the growth of the sub-sector over the last few decades in Bangladesh (FAO, 2005). Cattle are most available and versatile component providing a significant contribution to gross domestic, export products and raw materials for industries in relation to existing integrated
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