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Comparison of Some Serum Biochemical Parameters Between Lactating and Non-lactating Dairy Cows in Selected Dairy Farms of Chittagong District of Bangladesh

Md. Samun Sarker
Department of Microbiology and Veterinary Public Health, Chittagong Veterinary & Animal Sciences University, Bangladesh

Md. Ahaduzzaman
Scientific Officer
Department of Medicine and Surgery, Chittagong Veterinary & Animal Sciences University, Bangladesh

Md. Abu Sayeed
Department of Medicine and Surgery, Chittagong Veterinary & Animal Sciences University, Bangladesh

Rajib Sarker
Executive
Technical services at AMAN Group LTD, Bangladesh

Minhazul Abedin Nanno
Department of Animal Science and Nutrition, Chittagong Veterinary & Animal Sciences University, Bangladesh

Abdul Mannan
Veterinary Surgeon
S. A. Quaderi Teaching Veterinary Hospital, Chittagong Veterinary & Animal Sciences University, Bangladesh

Mohammad Belayet Hossain
Department of Physiology, Biochemistry and Pharmacology, Chittagong Veterinary & Animal Sciences University, Bangladesh

Abstract/ Executive Summary:

Physiological status-related changes in serum biochemical values are known to occur in many species. The aim of the current study was to evaluate total serum protein, albumin, glucose, calcium and phosphorus concentration and these parameters were measured by the serum analyzer for lactating (n=50) and non-lactating (n=50) dairy cattle in selected dairy farms of Chittagong district. The results (mean ± standard deviation) of the study showed that among serum biochemical parameters total protein (82.3 ± 2.15 gm/l), albumin (27.45 ± 5.06 gm/l), calcium (12.97±6.67 mg/dl) and phosphorus (7.26 ± 0.41 mg/dl) level in non-lactating cows were higher than the value of lactating cows as (81.28 ± 2.41 gm/l), (14.09 ± 2.05 gm/l), (10.05 ± 2.51 mg/dl) and (6.52 ± 0.30 mg/dl) respectively. Only glucose level in lactating cows (63.01 ± 6.67 mg/dl) was found higher than the non lactating cows (58.47 ± 3.84 mg/dl). In case of parity-wise parameters insignificant variation was noticed. It may be concluded that biochemical variation present between lactating cow and non lactating cow is important for interpretation of laboratory data and also for physiological diagnosis.

Keywords: Dairy cow; Lactating cow; Non lactating cow; Serum biochemistry; Parity

Location: Chittagong district

Start Date: 10-01-2014

End Date: 10-04-2014

Program Area: Animal Health and Management

Commodity: Cow

Objectives:

To estimate the selected hematological nutritional status of crossbred dairy cows in Bangladesh in relation to age, parity and lactation.

Methodology:

This study was conducted for a period of 4 months (10^th January to 10^th April, 2014) in three selected dairy farms in Chittagong city. The farms were selected based on population size greater than 50 crossbred (Holstein Friesian × Local) cows, house in tie-stall barn, standard ration feeding based on productive performance, milk yield more than or equal to ten litres per day, record keeping history, immunization against infectious disease and acceptance of farm to contribute in research work. The study population was 100 cross bred (HF × Local) healthy cows. In the farms, cows were in different age and production status, from which 50 lactating and 50 non lactating (dry) cows were selected based on parturition record for the first time, but not exceed for more than three times. Cows were further grouped into three categories on the basis of calving history (parity) of which parity 1 (n=29), parity 2 (n=52) and parity 3 (n=19). Some of the dry cows were pregnant, but they were not grouped further. All animals were fed both roughage and concentrates. Normal feeding habits of animals were observed during the research activities. All animals involved in this study were clinically healthy and to ensure this clinical history was reviewed with the farm manager through the examination of physical condition. All blood samples were collected between 10 am to 12 pm in order to standardize time. Blood samples were taken from jugular vein puncture with proper aseptic measures. About 5 ml of blood was collected and kept in the vacationer tube (without anticoagulant). The samples were transported to the Department of Physiology, Biochemistry and Pharmacology at Chittagong Veterinary and Animal Sciences University (CVASU), Bangladesh for analysis. After coagulation, coagulated blood was centrifuged in 3000rpm for 15 minutes. Serum was transferred to the Eppendorf tube by using micropipette. The obtained serum samples were stored in -20? for biochemical test and total protein, albumin, glucose, calcium and phosphorus of blood serum were determined according to the biochemical analyzer manual. Obtained laboratory data was stored in Microsoft Excell-2007 and imported to the software STAT/IC-13.0 for analysis. Descriptive statistical analysis was done to measure the mean, SEM, 95% confidence interval (CI) and p-value of different parameters. The arithmetic means (±SE) serum biochemical parameters in different groups were calculated. PAIRED T-TEST was done to assess the biochemical parameters in crossbred lactating and non lactating cows. Further Kruskal-Wallis has been done for unequal variance analysis, among the different parity. In all cases the level of significance was determined at p<0.05.

Source of Information: Asian J. Med. Biol. Res. 2015, 1 (2), 259-264; ISSN 2411-4472 (Print) 2412-5571 (Online) ; www.ebupress.com/journal/ajmbr

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The result found that there is some biochemical difference between lactating and non lactating cow. Total protein and albumin is higher in non lactating cow than lactating cow, whereas glucose and calcium is higher in lactating cows. The phosphorus serum level is lower in lactating cow and higher in non- lactating cow. This may be due to seasonal, geographic, dietary, breed or other residual effect that needs further study. Subtropical conditions of the present study might have played a role in the differences with other studies. Finally biochemical values are an efficient tool for evaluation of physiological status, metabolic disorders, and management problems of the farm which have a great relation to health status of the animal and diagnosis of some pathos-physiological disorder in animals.

Knowledge Management: Journal, Online Circulation