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Blood Profile of Lactating Crossbred Cows Rearing at Bangladesh Agricultural University Dairy Farm

H Rafsanjanny
Department of Dairy Science, Bangladesh Agricultural University, Mymensingh-2202

MAH Sarker
Department of Dairy Science, Bangladesh Agricultural University, Mymensingh-2202

MZ Islam
Department of Dairy Science, Bangladesh Agricultural University, Mymensingh-2202

KMS Islam
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh

MR Haque
Department of Livestock Services (DLS), Farmgate, Dhaka-1215, Bangladesh

MN Islam
Department of Dairy Science, Bangladesh Agricultural University, Mymensingh-2202

MSR Siddiki
Department of Dairy Science, Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

This study aimed to analyze the hemato profile of crossbred lactating cows reared at Bangladesh Agricultural University (BAU) Dairy Farm. Thirty-two (32) healthy crossbred lactating cows of Holstein-Frisian (HF), Jersey (J), Sindhi Sahiwal (SS) and Red Chittagong (RCC) were selected for the study and divided into four (04) groups. The cows were allowed to feed and manage according to dairy farm own scheduled-ration. The collected blood samples were analyzed for hematological and biochemical parameters viz. Hemoglobin (Hb), Packed cell volume (PCV), Total leukocyte count (TLC), and Total erythrocyte count (TEC) and Serum urea, Glucose, Albumin, Calcium, and Phosphorus, respectively by using an automated chemistry analyzer. The results revealed that the hematological and biochemical parameters non-significantly (p>0.05) differed between the crossbred groups. From the experiment, the higher amount of Hb (11 g/dL) and PCV (40%) was found in HF and RCC cows, respectively. The TLC was higher in SS and RCC but the TEC was recorded stable along with a slight increment in RCC. As far as the biochemical parameters are concerned, the blood urea concentration was found higher (28 mg/dL) in HF and RCC lactating cows. The same pattern was observed in the case of albumin concentration. On the contrary, the lowest value of Calcium was found in RCC but the Phosphorus concentration showed a little higher in RCC. It can be concluded that the overall herd health was satisfactory based on the blood profile parameters.

Keywords: Blood profile; Crossbred; Lactating cows; Dairy farm

Location: Bangladesh Agricultural University (BAU) Dairy Farm, Department of Dairy Science, BAU, Mymensingh-2202, Bangladesh.

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Cow

Objectives:

This study aimed to analyze the hemato profile of crossbred lactating cows reared at Bangladesh

Methodology:

Experimental animals- The experiment was carried out at the Bangladesh Agricultural University (BAU) Dairy Farm, Department of Dairy Science, BAU, Mymensingh-2202, Bangladesh. Thirty-two (32) healthy lactating cows were selected from different crossbred’ viz. Jersey (J), Sindhi Sahiwal (SS), Holstein Friesian (HF), and Red Chittagong Cattle (RCC). Then, the cows were divided into four groups each with 8 (eight) animals. Within the group the homogenous pattern was achieved based on the farm records regarding the lactation stage, number of lactation, milk yield, and age of the animals. The average live weight of the grouped animals was 285±25 kg. The animals were allowed to feed regular ration of the farm without any supplementation. Adlibitum water supply was ensured during the study. In addition, the animals were reared in a well-ventilated face-out stanchion barn and milked twice (morning and afternoon) a day. Blood collection and biochemical analysis- Blood samples were collected from the jugular vein through cleaning with 70% ethyl alcohol, and then, a 45 degree single drive was performed with a syringe with needle. Afterward, blood was immediately drawn into a properly marked falcon tube and prevent to clot at room temperature for 40-50 minutes in an undisturbed condition. The blood was collected in triplicate within a period of one month with one-week interval. In the laboratory, the blood samples were centrifuged at 3000 rpm for 10 minutes. The samples were kept in an ice boxuntil reached at the laboratory. Then the serum was separated and poured into Eppendorf tubes and stored at (-)20°C until analyzed. All the blood biochemical parameters were estimated by using an Automatic Chemistry Analyzer URIT-810 (URIT Medical Electronic Company Limited, China), Department of Animal Nutrition Lab, BAU. Statistical analysis- The data obtained from the laboratory tests were analyzed in Microsoft Excell-2010 and p value (p<0.05) was considered for level of significance.

Source of Information: Bang. J. Anim. Sci. 2019. 48 (2): 139-144

Article Link (Online Journal): DOI: https://doi.org/10.3329/bjas.v48i2.46768

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In the current study, the blood hematological and biochemical parameters of crossbred lactating cows in BAU dairy farm has been examined. The results demonstrate that the hematological and biochemical parameters non-significantly (p>0.05) differed between the crossbred groups. Thus, the crossbred group of animals has more or less the same metabolic strength so far the blood profiles are concerned as a herd health indicator.

Knowledge Management: Journal