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Dietary Moringa Leaf Supplementation Affects Heat-Stressed Broilers: II-Blood Metabolites, Antioxidant Activity and Meat Quality

Dietary Moringa Leaf Supplementation Affects Heat-Stressed Broilers: II-Blood Metabolites, Antioxidant Activity and Meat Quality

Noura K. Al-Suwailem1, Nancy N. Kamel2, Ahmed O. Abbas1,3*, Farid S. Nassar1,3 , Dalia A.A. Elsayed4, Gouda F. Gouda1,5, Hosam M. Safaa6

1Department of Animal and Fish Production, College of Agricultural and Food Sciences, King Faisal University, Al-Ahsa, Saudi Arabia; 2Department of Animal Production, National Research Centre, El Buhouth St., Dokki, Giza, Cairo 12622, Egypt; 3Department of Animal Production, Faculty of Agriculture, Cairo University, Gamma Street, Giza 12613, Egypt; 4Department of Poultry Breeding, Animal Production Research Institute, Agricultural Research Center, Dokki, Giza 12611, Egypt; 5Department of Animal Production, Faculty of Agriculture, Ain Shams University, P.O. Box 68, Hadaik Shoubra 11241, Cairo, Egypt; 6Department of Biology, College of Science, University of Bisha, P.O. Box 551, Bishah 61922, Saudi Arabia

 
*Correspondence | Ahmed O. Abbas, Department of Animal and Fish Production, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al-Ahsa 31982, Saudi Arabia; Email: aabbas@kfu.edu.sa

ABSTRACT

Heat stress exposure negatively influences broilers’ productivity and profitability. Stress exposure induces oxidative stress, which affects the general metabolism of heat-stressed birds and impairs carcass yield and meat quality. We investigated the impact of Moringa oleifera leaf meal (MLM) supplementation in heat-stressed (HS) broilers on their blood metabolites, antioxidant bio-indicators, carcass yield, and meat quality. We used three hundred one-day-old Cobb chickens and were randomly divided into three groups, each with five replicates of 20 birds. The thermoneutral control group received a basal diet, while the other two groups experienced cyclic thermal stress from day 22 to 42 and were fed the basal diet provided with either 0 or 2 g MLM/kg diet. On day 42, we reported carcass characteristics and evaluated meat yield and quality. Blood samples (n=10) were used for hematological assessment, as well as plasma was employed to measure blood metabolites and antioxidant markers. The results revealed a significant (P<0.05) reduction in red blood cell count (RBC), hemoglobin (HBG) concentration, hematocrit (HCT) percentage, albumin level, and endogenous antioxidant activity. Meanwhile, plasma total protein, cholesterol, triglycerides, creatinine, urea levels, and liver enzymes activity were significantly (P<0.05) increased. The carcass yield and meat quality showed significant (P<0.05) deterioration in response to heat exposure. MLM administration to the basal diet significantly enhanced blood metabolite levels, hematological parameters, antioxidant activities, carcass yield, and meat quality in broiler chickens exposed to HS. Thus, we have confirmed the potentiality of using dietary MLM to adjust the negative effect of HS on broiler metabolism and subsequently improve carcass yield and meat quality.
 
Keywords | Blood metabolites, Blood hematology, Broiler, Heat stress, Meat quality, Moringa oleifera

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Advances in Animal and Veterinary Sciences

November

Vol. 12, Iss. 11, pp. 2062-2300

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