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

Haematobiochemical Changes in Subclinical Mastitis Affected High Yielding Dairy Cows in Chittagong District

Md. Zannatul Ferdous Siddiqe
Department of Physiology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

Md. Shafiqul Islam
Department of Pathology and Parasitology, Chittagong Veterinary and Animal sciences university, Chittagong-4225, Bangladesh.

Syed Sakibul Islam
Faculty of Animal Science and Veterinary Medicine, Patuakhali Science and Technology University, Barisal-8210, Bangladesh

Md. Shariful Islam
Department of Pharmacology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.

Md. Shariful Islam
Department of Medicine and surgery, Chittagong veterinary and Animal Sciences University, Chittagong-4225, Bangladesh.

Bhajan Chandra Das
Department of Surgery and Medicine, Chittagong Veterinary and Animal Sciences University, Chittagong-4225, Bangladesh

Abstract/ Executive Summary:

The study was conducted to determine the hematobiochemical changes in sub-clinical mastitis of high-yielding varieties dairy cows in the Chittagong district. A total of 21 blood and milk samples were collected from Nahar, Rubel, Friends, Wahid, A.S. dairy farms in the Chittagong district for the study. The sub-clinical mastitis was diagnosed by California Mastitis Test (CMT). The overall prevalence of sub-clinical mastitis was found in almost 30.95% of dairy cows in the Chittagong district. The blood and milk of affected cows and the control group were analyzed for the hematological, biochemical, and mineral profiles. Hematology of animals revealed significantly (P< 0.05) lower average values of ESR, RBC, WBC, PCV, and Hb in infected animals (1±0.654) than healthy animals (1.21±0.425). Differential leucocytes count revealed higher neutrophil and lymphocyte, monocyte, and basophil count in infected cows than control cows. Mineral estimation revealed a significant (P< 0.05) increase in calcium and phosphorus level in mastitis cows as compared to healthy control, however, no significant (P> 0.05) change was observed in the Mg level. The changes of hematological constituents are important indicators of the physiological or pathological state of the animal.

Keywords: Hematobiochemical changes, Sub-clinical mastitis, California mastitis test.

Location: Chittagong Veterinary & Animal Sciences University.

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Cow

Objectives:

To detect the prevalence of subclinical mastitis in cows and to estimate the relationship between blood parameters changes during subclinical mastitis.

Methodology:

Chittagong area is potential for the dairy farms because of its high demand for fluid milk, suitable weather, feeds and fodder availability, available veterinary facilities from Chittagong Veterinary & Animal Sciences University. Nahar dairy farm, Wahid dairy farm, A.S. dairy farm, Rubel dairy farm, Friend dairy farm was selected for conducting the study. The study population was 21 cross-bred multiparous (HF X Local, Shahiwal X Local, HF x Shahiwal X Local.) milking cows. Cows were in different age and production statuses. The blood sample was collected from the jugular vein of the selected dairy cows. Blood samples were transported to the laboratory at the Department of Physiology and Biochemistry of CVASU within one hour kept in a Thermo flask with ice & then fresh blood was examined for TEC, DLC, Hb%, RBC, WBC, and PCV%, and remaining blood was used for calcium, magnesium and phosphorus estimation. The serum was separated from the blood and stored at 4°C until use. Different hematological parameters were studied according to the methods described by Sastri. Calcium, phosphorus, magnesium was determined by an Automated Analyzer established in the physiology lab of Chittagong Veterinary and Animal Sciences University. The data obtained were imported, stored, and coded according to recorded information in the questionnaire regarding Infectious and non-infectious diseases in high-yielding variety dairy cows in the datasheet using the Microsoft Excel- 2007 program. These data were brought to the SPSS 16.0 for the t-test. The level of significance was determined at P<0.05.

Source of Information: International Journal of Natural and Social Sciences, 2015, 2(4): 30-34

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

There was an increase in phosphorus level in infected cows 12.46±4.00 mg/dl whereas the normal cows had 11.54±1.87 mg/dl. The variation in phosphorus of the cow of the two groups was statistically significant (P<0.05) which could be attributed to its more secretion in milk, due to injury to the udder wall, thus more loss in milk. The finding corroborates with the observation of Dwivedi et al..

Knowledge Management: Journal