EGG CHOLESTEROL LEVEL AND BLOOD BIOCHEMICAL PROFILE OF SIX SPECIES OF POULTRY UNDER EXTENSIVE MANAGEMENT SYSTEM

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dc.contributor.authorNUHU, Baraka Tahir
dc.date.accessioned2018-09-21T09:49:27Z
dc.date.available2018-09-21T09:49:27Z
dc.date.issued2016-10
dc.descriptionA THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE DEGREE IN EDUCATION BIOLOGY DEPARTMENT OF BIOLOGICAL SCIENCES, FACULTY OF SCIENCE, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIAen_US
dc.description.abstractSix different poultry species (Indigenous chicken, Broiler, Turkey, Geese, Duck and Guinea fowl) were studied under extensive system of management to investigate the effect of rearing system on egg quality, cholesterol level and the blood biochemical profile. Birds used for the study were obtained from four different locations (Zangon Shanu, Bomo, Samaru and Kurmin Bomo) in Sabon Gari Local Government Area of Kaduna State. Eighteen (18) birds were randomly selected from the flock with three birds (3) per strain as replicates. Three eggs were collected daily per replicate for the determination of external and internal egg quality parameters (egg weight, egg length, egg breadth, egg shape index, shell thickness, yolk width, yolk height and yolk index). Blood samples (2ml) were collected from the same birds at the end of the laying phase for the determination of blood biochemical profile, heamatological parameters and cholesterol levels. Data collected was analyzed using the General Linear Model of the SAS (2002) Software. Statistically significant means were separated using the Duncan Multiple Range Test (DMRT). Results obtained from the study showed that the geese had significant (P<0.05) better external and internal egg parameters for most of the parameters while indigenous chicken and guinea fowl had the least results for external and internal egg parameters. Biochemical indices, showed significant (P<0.05) differences in most of the parameters except high density lipoprotein (HDL) which was not significant (P>0.05) among the treatments. The calcium (Ca2+) and phosphorus (PO42-) contents of the blood were all within a similar range (P<0.05) for the species except for duck which had a lower value of 2.06mg/dl. Also, duck had lowest values for blood total cholesterol (3.33mg/dl), low density lipoprotein (2.20mg/dl) and triglycerides (0.43mg/dl). However, lowest values of PO42- were observed in guinea fowl (0.84mg/dl) compared to duck (1.60mg/dl). Other biochemical indices such as total cholesterol (5.63mg/dl), high density lipo-protein (1.27mg/dl) and low density lipo-protein (3.93mg/dl), were significantly (P<0.05) better in goose than other species. Guinea fowl had higher albumin content (45.00mg/dl) compared to indigenous chicken (26.33mg/dl). The egg cholesterol level differed significantly (P<0.05) in the poultry species with highest level obtained in guinea fowls (15.30mg/dl) compared to indigenous chicken (8.83mg/dl), broiler (9.50 mg/dl) and duck (9.50 mg/dl). Indigenous chicken had higher value for glucose (176.33mg/dl) compared to geese (47.67mg/dl), though least for cholesterol. Duck and turkey have higher values (P<0.05) for egg total protein than broiler (53.33 vs. 28.67mg/dl). The results of heamatological parameters showed that all the parameters measured were significantly (P<0.05) different amongst the species. However, the monocytes, eosinophiles and bands were not significantly (P>0.05) different from each other. It was therefore concluded that differences exist among the various species of poultry birds studied with guinea fowl (15.30mg/dl) having the highest total cholesterol values for egg quality parameters while the lowest value (8.83mg/dl) was obtained in indigenous chicken. However, duck (3.33mg/dl) had lowest values for total cholesterol in the blood and higher values for total protein (53.33mg/dl), while indigenous chickens had the least value for egg cholesterol compared to the nutritional standard for hen (410.00mg). Hence, egg and meat of duck and indigenous chickens are safer to consume compared to other poultry species; and should therefore be promoted in our farming systems.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/10507
dc.language.isoenen_US
dc.subjectEGG CHOLESTEROL LEVEL,en_US
dc.subjectBLOOD BIOCHEMICAL PROFILE,en_US
dc.subjectSIX SPECIES,en_US
dc.subjectPOULTRY,en_US
dc.subjectEXTENSIVE MANAGEMENT SYSTEMen_US
dc.titleEGG CHOLESTEROL LEVEL AND BLOOD BIOCHEMICAL PROFILE OF SIX SPECIES OF POULTRY UNDER EXTENSIVE MANAGEMENT SYSTEMen_US
dc.typeThesisen_US
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