Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Incidence of Reproductive and Production Diseases of Cross-bred Dairy Cattle in Bangladesh

A. Khair
Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

M. M. Alam
Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

A. K. M. A. Rahman
Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

M. T. Islam
Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

A. Azim
Livestock Development Program, Proshika Manobik Unnayan Kendra, Dhaka.

E. H. Chowdhury
Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh- 2202, Bangladesh.Dhaka.

Abstract/ Executive Summary:

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 and production disease research to gain more knowledge and in extension to control them in Bangladesh context.

Keywords: Incidence, Reproductive disease, Cross-bred dairy cattle

Location: Shahjadpur Upazilla in Sirajgonj district

Start Date: 01-03-2012

End Date: 28-02-2013

Program Area: Animal Health and Management

Commodity: Cattle

Objectives:

To determine the incidence of reproductive diseases in cross-bred dairy cattle in the study area.

Methodology:

Study areas, period and population Shahjadpur Upazilla in Sirajgonj district of Bangladesh, the most important dairy zone of Bangladesh was selected as study area. Two hundred and fifty (250) farms having at least two cross-bred dairy cattle were selected conveniently. Active surveillance system was used to collect data from the selected farms over a period of 12 months from Mar’2012 to Feb’2013. Calculation of incidence rate of reproductive and production disorders The incidence rate (true incidence rate) of reproductive and production disorders (PDs), cumulative incidence and proportionate incidence were estimated. To calculate the overall incidence rate of reproductive disorders (RDs) and PDs, all cattle found with RDs and PDs during the study period were included in the numerator and the total number of animal months at risk in the denominator. To calculate season incidence, the number of cattle in the denominator for a particular season was the arithmetic mean of the number of cattle in the respective season. Cumulative incidence of RDs/PDs was calculated by taking the number of cattle with a specific disorder as the numerator and the average number of cattle at risk as denominator. Proportionate incidence was calculated by using the number of RDs/PDs due to a specific disease as numerator divided by the total diseases as denominator during the study period. Collection of information and samples For collection of epidemiological data, routine monitoring of the farm and samples from diseased cattle a Research Assistant was recruited. Before sending him for farm investigation he was trained for this work. He was provided with a motor cycle and a cell phone for easy access to communicate and surveillance of the farms. His work was monitored by the Veterinary Surgeon of the respective study area and the research team in BAU.

Source of Information: Bangl. J. Vet. Med. (2013). 11 (1): 31-36 ISSN: 1729-7893 (Print) 2308-0922 (Online

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The overall true incidence rate of RD and PD was 33 per 10000 cattle-months at risk. The highest incidence of reproductive disorder was found with repeat breeders as 11 per 10000 cattle-months at risk and the lowest incidence rate was found for abortion and retained placenta as 2 per 10000 cattle-months at risk. Similarly the overall cumulative incidence of RD and PD was 3.93% . The highest and lowest cumulative incidence of RD respectively were 1.29% for repeat breeder and 0.20% for abortion. The true incidence rate and cumulative incidence of clinical mastitis were 8 per 10000 cattle moths at risk and 1.0% respectively.

Knowledge Management: Journal