Adnan Yousaf1,*, Talat Bilal Yasoob2, Dad Muhammad Anwar3, Bashir Ahmad3, Faizullah Tareen3, Faiza Habib3, Syed Nasrullah3
1Faculty of Animal Husbandry and Veterinary Science, Sindh Agriculture University Tandoajm, Pakistan
2Department of Animal Sciences, Ghazi University Dera Ghazi Khan, Pakistan
3Department of Livestock & Dairy Development Quetta, Pakistan
*Corresponding Author: Adnan Yousaf, Faculty of Animal Husbandry and Veterinary Science, Sindh Agriculture University Tandoajm, Pakistan; Email: [email protected]
Received Date: June 6, 2024
Publication Date: August 08, 2024
Citation: Yousaf A, et al. (2024). Different Blood Biochemistry Parameters Of Broiler Chicken In Response To Newcatle Disease Virus In Hyderabad, Sindh. Mathews J Vet Sci. 8(3):47.
Copyright: Yousaf A, et al. © (2024)
ABSTRACT
Newcastle disease (ND) is a severe life-threatening viral infection of poultry birds in Pakistan. Current study was performed to evaluate effects of Newcastle disease virus on haematological changes in broiler chicken. Eighty (80) blood samples were collected from twenty (20) different farms of District Hyderabad clinically suspected of Newcastle disease infection & eighty (80) samples were collected from the healthy (ND free Broiler Flock) raised individually in the Department of Poultry Production, Sindh Agriculture University Tandojam. The data revealed that there is a sharp decline in values for total erythrocyte count, hemoglobin concentration, HCT, MCH & MCV for ND affected birds viz; (1.65±0.08,8.9±0.22 & 22.78b±1.07, 52.5a±7.3& 1.35.63a±27 respectively) was significant (p-value<0.05) as compared to healthy broiler birds viz; (2.60a±0.09,10.5a±0.35& 27a±0.53, 37.8b±1.3 & 107.3b±2.5 respectively). Values for MCHC (37.3a±1.7 for healthy & 39.7a±4.8 for ND-affected broiler birds) were not significant. Whereas for leukogram of group A, TLC, Heterophils, lymphocytes, monocytes & eosinophils for ND infected birds viz; (19.9a±1.6, 19b±0.05, 76a±0. 18, 4b±0.18 & 3.5b±0.04 was significant as compared to healthy broilers viz; (16.2b±0.6, 25a±0.05, 65b±0.19, 8a±0.19 & 4a±0.03 respectively). Basophils of ND-infected & healthy broilers viz; 0.5a±0.02 & 0.3b±0.02 respectively were not found significant as p>0.05. It was also observed that ND virus has significantly affected haematology parameters in broiler birds.
Keywords: Broiler, Newcastle disease, Total erythrocyte count, Total leukocyte count.
INTRODUCTION In the last few decades, the poultry industry of Pakistan has shown extraordinary growth and instilled a lot in the economy of the country. However, this increasing growth of poultry is threatened by various factors most importantly deadly viral and bacterial diseases which affect negatively on its economic impact (Tripathy, 2004, Harrison et al., 2011) [1,2]. Newcastle disease is one of those infectious and contagious diseases which are badly affecting our broiler flocks. The very first outbreaks of Newcastle disease (ND) in poultry were noticed in 1926 in Java, Indonesia (Kraneveld, 1926) [3]. Afterward, this disease progressed in many countries of the world including Asian countries. In Pakistan, many outbreaks of ND were reported in different geographic areas in different time periods of the year. Broilers of all ages are susceptible to this infection & the severity of infection was seen in unvaccinated broilers, mixed infection, bad managemental conditions, and unhealthy feeding systems. Measurement of different parameters of blood provided valuable information about the health status of both humans and animals (Talebi et al., 2005) [4]. Esonu et al. (2001) [5] assured that hematological constituents reveal the physiological sensitivity of the animal to its inside and external environment. There is insufficient of information related to the effect of ND on the total erythrocyte count and haemoglobin concentration in Pakistan. This study was designed to study the effect of ND on Haemogram of broiler birds and to compare the haematological values of healthy broilers with the ND affected broiler birds. MATERIAL AND METHODS STUDY AREA The study was carried out at the Department of Poultry Production, Sindh Agriculture University Tandojam. Twenty (20) broiler flocks clinically affected with ND reared in different areas of the District Hyderabad were selected for sampling. To record normal hematologic values, a broiler flock of eighty (80) birds was reared in the Department of Poultry Production, Sindh Agriculture University Tandojam. SAMPLE COLLECTION 1.5 ml of blood from each broiler bird (infected & healthy) was collected in sterile, labeled anticoagulant (EDTA) added vacutainers. These tubes were place in ice box and shifted to haematology laboratory of Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University Tandojam for hematology studies. Blood Samples were divided into two groups i.e., Group A for normal broilers and Group B for ND infected broilers. PROCESSING OF SAMPLES Anticoagulant added whole blood was processed through automatic heamtology analyzer (URIT-2900) for estimation of hematological profile including; total erythrocyte count (TEC), haemoglobin concentration (Hb), hematocrit values (HCT), total leukocyte count (TLC) and differential leukocyte count (DLC). Erythrocytic indices including; mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), and mean corpuscular haemoglobin concentration (MCHC) were also estimated (Shah et al., 2017) [6]. Total leukocyte count (TLC) and differential leukocyte count (DLC) were estimated manually through the standard procedure (Fudge and Alan, 2000) [7]. MCHC was calculated as according to the method as de- scribed by Jain (1993) [8]. HCT was calculated automatically by using an automatic heamtology analyzer (URIT-2900). STATISTICAL ANALYSIS The data thus obtained was compiled in Microsoft excel sheet and analysed through statistical analytical software (Statistics version 8.1). General analyses of variance test was used for haematological differences and means were compared by LSD at p˂0.05 level of significance (Shah et al., 2017) [9]. RESULTS AND DISCUSSION A total of eighty (160) blood samples were analysed. Eighty samples collected from normal birds and eighty from birds infected with ND. The samples were processed for Hb, TEC, MCH, MCHC, MCV, TLC and DLC values. The detailed values for haematological parameters of ND infected and normal broiler birds are presented in Table 1. Table 1: Haematological parameters of healthy and ND affected broiler birds
Parameter |
Normal (Group A) |
Infected (Group B) |
P-value |
TEC (x106/µl) |
2.60a±0.09 |
1.65b±0.08 |
0.00* |
Hb (g/dl) |
10.5a±0.35 |
8.9b±0.22 |
0.02* |
HCT (%) |
27 a±0.53 |
22.78b±1.07 |
0.00* |
MCH (pg) |
37.8b±1.3 |
52.5a±7.3 |
0.02* |
MCV (fl) |
107.3b± 2.5 |
135.63a±27 |
0.04* |
MCHC (g/dl) |
37.3b±1.7 |
39.7a±4.8 |
0.06 |
TLC (x103/ µl) |
16.2b±0.6 |
19.9a±1.6 |
0.03* |
Heterophil (%) |
25a±0.05 |
19b±0.05 |
0.00* |
Lymphocytes (%) |
65b±0.19 |
76a±0.18 |
0.00* |
Monocytes (%) |
8a±0.19 |
4b±0.18 |
0.04* |
Eosinophils (%) |
4a±0.03 |
3.5b±0.04 |
0.01* |
Basophils (%) |
0.3b±0.02 |
0.5a±0.02 |
0.13 |