Journal of Food, Agriculture and Environment

Nutrient profiles of brown marine algae (Sargassum dentifebium) as affected by different processing methods for chickens

Author(s):

M. A. Al-Harthi ^*, A.A. El-Deek

Recieved Date: 2011-10-11, Accepted Date: 2012-01-07

Abstract:

The aim of this research was to evaluate the nutritional value of brown marine algae (BMA) as affected by different processing methods as a feedstuff for chicken diets. Brown marine algae (Sargassum dentifebium) were cultivated from Jeddah Red Sea shore. BMA was first sun-dried (SBMA) at average day temperature of 40°C until constant weight. Then, a part of the SBMA was processed by boiling (BBMA) in water (1 algae at 45°C for 4 water) for 20 min. Another part of SBMA was processed by autoclaving (ABMA) under 115 bar/inc for 15 minutes. The BBMA and ABMA were then air-dried at 45°C for 48 h until constant weight. Brown marine algae contained protein (7.54-7.77%), crude fat (0.41-0.47%), crude fibre (7.77-7.90%), ash (47.15-48.31%), nitrogen free extract (29.95-31.38%) and soluble sugars (1.666-1.880%) whereas the metabolizable energy (ME) value was 1523-1543 kcal/kg. Nature detergent fibre ranged from 27.95 to 30.21%, acid detergent fibre ranged from 21.18 to 23.54% and hemolcelullose from 6.41 to 7.73% whereas tannins ranged from 0.733 to 0.815 mg/gm protein. Mineral contents of BMA were Ca (0.126-0.144%), P (0.239-0.255%), Na (4.01-4.05%), Zn (215-345 ppm), Mn (216-270 ppm), I (12.72-13.51 ppm), Fe (11.2-11.5 ppm) and Cu (4.6-4.81 ppm). Valine (0.94-1.03%), leucine (0.88-0.96), agrinine (0.71-0.77%) and therionine (0.63-0.74%) were the most abundant essential amino acids (EAAs) in BMA processed by different methods. The contents of EAAs were 0.17-0.25%, 0.23-0.35% and 0.30-0.40% for methionine, methinione with cystine and lysine. The saturated fatty acids (SFA) were 32-54-35.90%, monounsaturated fatty acids (MUFA) were 35.79-37.02%, polyunsaturated fatty acids (PUFA) represented 27.77-30.43% and unsaturated fatty acids (UFA) were 64.10-67.46%. The SFA:UFA ratio was 0.482-0.560. It was concluded that BMA had a valuable nutrient profiles and could be used as a feed resource for poultry feeding.

Keywords:

Brown marine algae, protein quality, amino acids, fatty acids, minerals

---

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 475-480

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :