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Effect of Vitamin D and Phytase on Growth, Blood Mineral Level and Slaughter Parameters of Broilers

Effect of Vitamin D and Phytase on Growth, Blood Mineral Level and Slaughter Parameters of Broilers

Ali Raza1, Muhammad Sharif1*, Fawwad Ahmad1, Asghar Ali Kamboh2, Muhammad Saeed3, Muhammad Ashraf1 and Asad Ullah Hayder1

1Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Pakistan.
2Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Pakistan.
3Faculty of Animal Production and Technology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan.
 
* Corresponding author: drsharifuaf@yahoo.com

ABSTRACT

Current study investigated the dietary effect of vitamin D and phytase on performance, blood mineral level and slaughter parameters in broiler chicken. Diet A was without vitamin D and phytase supplementation (control). Diets B, C, D, E, F and G were supplemented with phytase at the rate of 400 FTU/kg, 800 FTU/kg, vitamin D 4000 IU/kg, 8000 IU/kg, phytase 400 FTU/kg + vitamin D 4000 IU/kg and phytase 800 FTU/kg + vitamin D 8000 IU/kg of feed, respectively. Each diet was fed to 30 broiler birds from post hatching to day 35. Feed intake was higher (P < 0.05) in birds offered diet B and D, while the weight gain and feed conversion ratio were better (P < 0.05) in those birds offered diet F. Serum calcium contents were more (P < 0.05) in groups D and G, while higher (P < 0.05) phosphorous contents were found in those birds fed diet C and G. The highest (P < 0.05) dressing percentage was observed in group F, and highest (P < 0.05) tibial ash contents were found in groups F and G. Keel bone length was improved (P < 0.05) in those birds receiving ration F and G, while highest (P < 0.05) shank length was observed in those birds receiving diet G. Based on these results, it was concluded that phytase and vitamin D, at the level of 400 FTU/kg and 4000 IU/kg, cumulatively improved the weight gain, feed conversion ratio, dressing percentage, keel bone length and bone mineralization.

 

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Pakistan Journal of Zoology

August

Vol. 54, Iss. 4, Pages 1501-2001

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