Abstract
Aim: The incidence of retained placenta of dairy cows in relation to individual animal level and farm management factors such as farm type, farm size, housing system, floor type, feed quality, time of parturition, farming experience of farmer and delivery pattern of cows was determined. Materials and Methods: A total 1205 parturated dairy cows conducted in nine upazilas and four Metro Thana of Rajshahi district during July 2010 to June 2011for attainment of the result. Individual animal and farm management factors associated with retained placenta were recorded in a structured questionnaire through face-to-face farmer's interview and reviewing farm records. The raw data were compiled and statistical SPSS program to analyze to obtained result. Results: The overall incidence of retained placenta was 13.4%. The incidence was significantly higher in Local × Sahiwal genotype (4.6%) and late delivery (longer gestation period) (80%) than their counter groups (p<0.05). The large farm (6.0%) had higher incidence and had no significant effect than medium and individual household. Similarly animals housed in Tin shed building with poor ventilation facilities (6.6%), animal housed in unscientific concrete floor (6.8%), animals mostly grassed along with small amount of straw supplied (5.4%) and a farmer had less than one year farming experience (5.3%) had not significant statistically show higher incidence of retained placenta. Conclusion: The local genotype; mini farm; supplied better feed quality; vast farming experience of farmer and normal delivery with eutocia had less chance of retained placenta of dairy cows.
Highlights
Livestock is a crucial part in the economic and social fabric of Bangladesh
The incidence was significantly higher in Local × Sahiwal genotype (4.6%) and late delivery (80%) than their counter groups (p
Animals housed in Tin shed building with poor ventilation facilities (6.6%), animal housed in unscientific concrete floor (6.8%), animals mostly grassed along with small amount of straw supplied (5.4%) and a farmer had less than one year farming experience (5.3%) had not significant statistically show higher incidence of retained placenta
Summary
Livestock is a crucial part in the economic and social fabric of Bangladesh. In the year the total livestock and poultry of our Country is about 41.63 and 278.80 million [1]. The incidence of RP varies from 2 to 10% of foaling in mares [3] and 4.0-16.1% in cow [4]. This incidence can be much higher in problem herds. A retained placenta usually causes the cow to have an increased time from calving to the conception of the calf. It is not uncommon for a cow with a retained placenta to delay the pregnancy for 2-6 months. The problem retained placenta loss of production that fail to meet our protein demand and affect the food security achievement
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