Effect of zinc oxide nanoparticle supplementation on the growth performance, biochemical parameters and morphology of the intestine in broilers
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Date
2021-08-02
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Sher-e-Kashmir University of Agricultural Sciences & Technology, Jammu (J&K)
Abstract
Effect of zinc oxide nanoparticle supplementation on the performance traits, serum biochemical parameters, enzymatic parameters, antioxidant enzyme activities, intestinal histomorphometry and carcass characteristics of Vencobb strain broilers were studied from day old to 42 days. A total 240 broiler chicks were randomly divided into three groups. The broilers fed with basal diet were kept as control group (control), T1 group consists of the broilers fed with zinc oxide nanoparticle @ 45mg/kg in basal diet; whereas, T2 group consists of broilers fed with zinc oxide nanoparticle supplementation @ 90mg/kg of basal diet. Body weight was taken from day 1 to day 42 and feed intake, body weight gain and FCR were recorded from day 7 to 42 on weekly basis. Blood samples were collected on 14, 21, 28, 35 and 42 day. One drop of whole blood was used for glucose estimation. Blood was collected, serum was separated and different parameters viz serum enzymes, biochemical parameters and antioxidant enzymes were studied. Sacrificed birds were used for the histomorphometry of small intestines, carcass characteristics and texture analysis of raw meat. Performance traits, biochemical parameters, enzymes (ALP and AST), antioxidant enzymes (SOD, GPx), histomorphometrical parameters of small intestines, drumstick yield percentage and adhesiveness showed significantly (P<0.05) increasing trend with the advancing age. Zinc oxide nanoparticle supplementation in broilers significantly (P<0.05) enhanced body weight, feed intake, average body weight gain and improved FCR. Total protein, serum zinc level, serum enzymes (ALP, ALT and AST), SOD and GPx antioxidant enzyme activities, histomorphometrical parameters of small intestines (height of intestinal epithelium, villus height, villus width and thickness of muscularis mucosa) increased significantly (P<0.05) in the supplemented groups. Carcass, evisceration, giblet, neck, thigh, drumstick and back yield percentages were also significantly (P<0.05) increased in supplemented groups as compared to control. Blood glucose, creatinine, total cholesterol and scores of hardness, chewiness and gumminess significantly (P<0.05) decreased in the zinc oxide nanoparticle supplemented groups as compared to control. From the present study, it can be concluded that zinc oxide nanoparticle can be used as a diet supplement for increasing the overall performance in broiler chicks during their growth period. Dietary supplementation of zinc oxide nanoparticle @ 90 mg/kg is recommended in broilers for overall better performance.