NUTRITIONAL EVALUATION OF BOILED SENNA OBTUSIFOLIA (LINN) SEED MEAL FOR FISH NUTRITION

Authors

  • Onimisi, H. U. National Agricultural Extension and Research Liaison Services. Ahmadu Bello University, Zaria.
  • Oniye, S. J.
  • Bolorunduro, P. I.,

Keywords:

Nutritional, boiled Senna obtusifolia, Fish, Seed.

Abstract

The nutritional evaluation of boiled Senna obtusifolia (linn) seed meal and its implication for fish nutrition was investigated. The seeds of Senna obtusifolia was handpicked at Shika Zaria, Kaduna State. Three portions each of 100g of the seed samples was taken for boiling as described by (Kakati et al., 2010) at 100oC for 30, 45, 60 minutes corresponding to B1, B2, B3 respectively. The boiled seeds was sundried and grinded into fine powder and the nutrients composition was evaluated. Results shows that boiling significantly reduced the crude protein contents of the raw Senna obtusifolia seed meal (SOSM) from 21.12 to 15.51% as the boiling progress time from 30 to 60 min. However, the lipid contents increased from 11.14 to 12.57% as the boiling progressed. Boiling reduced the ash contents but not significantly (p>0.05) different as boiling progressed from 30 to 60 min. Significant (P<0.05) reduction of fibre contents was observed with increase in boiling time. The moisture content increased significantly (p<0.05) in the boiled samples. Boiling for 30, 45 and 60 min. resulted in NFE of 51.12, 51.10 and 53.34% respectively, which is significantly different (p<0.05) from the raw sample. The amino acid (g/100g protein) composition of the raw and differently boiled Senna obtusifolia shows that methionine (Met.) had the least value both in the raw and boiled seeds. Boiling significantly (p<0.05) reduced the amino acid composition. In conclusion, boiled Senna obtusifolia seed meal contains appreciable quantities of nutrients and amino acids but is limiting in methionine and lysine when compared to the established standard by FAO therefore, its use as supplementary plant protein with other feed ingredients rich in the limiting amino acids to feed fish is recommended.

Published

2017-06-30