SEASONAL VARIATIONS IN THE PROXIMATE AND MINERAL CONTENTS OF THREE FRESH WATER FISHES IN MAIRUWA RESERVOIR, FASKARI, KATSINA STATE
SEASONAL VARIATIONS IN THE PROXIMATE AND MINERAL CONTENTS OF THREE FRESH WATER FISHES IN MAIRUWA RESERVOIR, FASKARI, KATSINA STATE
No Thumbnail Available
Date
2009-02
Authors
BABANGIDA, ABDULKARIM
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
A total of 1347 fish samples consisting of Synodontis clarias, Schilbe
mystus and Mormyrus macrophthalmus collected from Mairuwa
Reservoir, Faskari, Katsina State were analysed for the proximate and
mineral contents using some fish parts and the whole fishes during the
two seasons (dry and rainy) using standard methods and procedures. The
lipid and protein contents were significantly higher (P<0.05) in the flesh.
The carbohydrate contents were generally low in all the parts of the fishes
studied. Ash contents were significantly high (P<0.05) in the bones and
least in the flesh. The moisture content was generally low in all the parts
studied (flesh, head and bones). Calcium and phosphorus were
significantly (P<0.05) higher in the bones, while sodium and magnesium
were significantly higher (P<0.05) in the flesh of all the three fish species.
Zinc and Iron were significantly higher (P<0.05) in the bones, while
potassium contents were least found in the bones. There were no
significant differences (P>0.05) in the moisture contents of all the three
species in the two seasons. The ash contents were significantly lower
(P<0.05) during the rainy season. There were no significant differences
(P≥0.05) in organic matter contents in all the three fish species in the two
seasons. Carbohydrates and Lipids were significantly higher (P<0.05)
during the rainy season. However, protein contents were significantly
higher (P<0.05) during the dry season. Calcium, potassium, iron, sodium,
phosphorus and zinc were significantly (P<0.05) affected by the seasons,
while copper and magnesium were unaffected by the seasons. Higher
contents of calcium, potassium, iron, sodium, phosphorus and zinc were
observed during the rainy season in all the three fish species. The fish
species have high nutritive values; as such their utilization will assist in
the remedy of health and malnutrition problems among the populace.
Description
A THESIS SUBMITTED TO THE POST GRADUATE SCHOOL AHMADU BELLO
UNIVERSITY, IN PARTIAL FULFILMENT OF THE REQUIREMENT FOR THE AWARD OF
THE DEGREE OF MASTER OF SCIENCE IN M.Sc. (ED. BIOLOGY)
DEPARTMENT OF BIOLOGICAL SCIENCES
AHMADU BELLO UNIVERSITY, ZARIA.
FEBRUARY, 2009
Keywords
SEASONAL,, VARIATIONS,, PROXIMATE,, MINERAL,, CONTENTS,, FRESH WATER FISHES,, MAIRUWA,, RESERVOIR,, FASKARI,, KATSINA STATE