Blood biochemical profile of four fast-growing broiler strains under high ambient temperature
2018
Naila Chand, The University of Agriculture, Peshawar, Pakistan | Shabana Naz, GC University, Faisalabad, Pakistan | Ziaur Rehman, The University of Agriculture, Peshawar, Pakistan | Rifat Ullah Khan, The University of Agriculture, Peshawar, Pakistan
The present study was carried out to evaluate the effect of optimum and high ambient temperatures on biochemical parameter of four broiler strains. Broiler chicks (n = 242) of four different commercial strains (Ross, Hubbard, Cobb and Arber Acer) on day 15 were divided into two groups: thermo-neutral zone (TN) group and high ambient temperature zone (HAT) group. Chicks in TN group were housed at constant room temperature (25 C ± 2 ℃ and RH 65 ± 5%) while chicks in HAT group were kept under HAT of summer. Chicks in each group were further divided into four subgroups, i.e., TNRoss, TN-Hubbard, TN-Cobb, TN-Arber Acer and HATRoss, HAT-Hubbard, HAT-Cobb, HAT-Arber Acer. Each subgroup was further subdivided into four replicates having ten chicks per replicate. Blood was collected on day 21 and 42. Mean serum aspartate aminotransferase (AST), alanine amino transaminase (ALT), alkaline phosphates (ALP), glucose, cholesterol, triglyceride, and low-density lipoprotein (LDL) were significantly higher (P less than 0.05) in HAT group, while total serum protein and high-density lipoprotein (HDL) were significantly higher (P less than 0.05) in TN group. In TN zone group, significantly (P less than 0.05) lower AST, ALT, glucose, cholesterol, triglyceride, and LDL and significantly (P less than 0.05) higher HDL and total protein were recorded for Cobb and Hubbard strains. In HAT zone group, significantly (P less than 0.05) lower AST, ALT, glucose, cholesterol, triglyceride, and LDL and significantly (P less than 0.05) higher HDL and total protein were recorded for Ross and Arber Acer strains. The findings of the present study suggested that Ross and Arber Acer strains were more tolerant to summer HAT of tropical areas than Cobb and Hubbard, while Cobb and Hubbard strains were more effective in TN environment.
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