EUROPEAN JOURNAL OF
PHARMACEUTICAL AND MEDICAL RESEARCH

An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

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 ISSN 2394-3211

Impact Factor: 4.897

 ICV - 79.57

Abstract

EFFICACY OF PHYTASE SUPPLEMENTATION TO LOW PHOSPHORUS AND LYSINE BROILER CHICKENS DIET ON PERFORMANCE, BLOOD PARAMETERS AND NUTRIENTS DIGESTIBILITY

Asmaa S. El-Far*, H.A. Ahmed, Mervat A. Abdel- Latif and M. A. Emam

ABSTRACT

To assess the effects of the dietary phytase on the growth performance, and apparent nutrient digestibility of broiler chickens fed low available phosphorus and lysine diets, a total of 240 one-day-old Cobb 500 chicks were randomly allocated into six groups, with four replicates (40 birds/ group). The chicks were fed the starter (first two weeks), grower (second two weeks) and finisher (last week) diets supplemented with 0 or 1000 FTU/kg phytase activity. Six mash diets were formulated for the experimental groups which consisting of group 1 (control group, G1) fed corn soybean based diet without phytase supplementation. group 2 (G2) fed on lower NPP by 0.1% than required; group 3 fed (G3) on diet with 0.05% lower lysine than required; 4th , 5th and 6th group (G4, G5 and G6) fed on the same diets of the previous groups respectively, but supplemented with phytase enzyme at a level of 0.2 g/kg diet. All birds received control diet during the first week and fed the experimental diet from the second week till the end of the experimental period. The highest BW was for the group fed the basal diet supplemented with phytase (the on top) that had increased feed consumption (1.6%; P ≤ 0.05) with similar FCR and PER to the control. Addition of phytase to low NPP diet (G4) non significantly increased FBW and TWG, but showed significant (P ≤ 0.05) decrease in TFI and FCR with higher PER and economic efficiency (P ≤ 0.05) comparing with the group fed low NPP without phytase. The birds of G5 and G6 had higher CP digestibility than those of G2 and G3 respectively. Moreover, significant (P ≤ 0.05) improvements in lysine digestibility (7.2%) and phosphorus (P) availability were observed with phytase supplementation. Further that, phytase supplementation had no adverse effect on haematological indices and biochemical constituents of serum, liver and kidney functions. It was concluded that phytase supplementation achieved better growth performance and higher economic efficiency. In addition, dietary phytase supplementation could replace 0.1% available phosphorous and 0.05% lysine.

Keywords: Broilers, Microbial phytase, performance, P availability, lysine digestibility.


[Full Text Article]

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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (Under Process)