Prioritizing the Nutrients of Grouper Fish For Feed Formulation using Inversely Proportional to the Variance and Weighted Sum of Z-Scores
Soong Cai Juan1, Rosshairy Abd Rahman2, Razamin Ramli3

1Soong Cai Juan, Faculty of Information Technology and Science, INTI International University, Persiaran Perdana BBN, Puta Nilai,  Malaysia.

2Rosshairy Abd Rahman, School of Quantitative Science, University Utara Malaysia, University Utara Malaysia, Sintok, Kedah, Malaysia.

3Razamin Ramli, School of Quantitative Science, University Utara Malaysia, University Utara Malaysia, Sintok, Kedah, Malaysia.

Manuscript received on 01 February 2019 | Revised Manuscript received on 07 February 2019 | Manuscript Published on 13 February 2019 | PP: 351-356 | Volume-8 Issue- 4S February 2019 | Retrieval Number: DS2888028419/2019©BEIESP

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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Grouper fish requires several important nutrients such as crude protein, crude fibre and calcium to maintain its healthiness and growth. However, it is very hard to determine the priority of the nutrients in order to formulate the grouper feed. Therefore, in this paper, the priority of the nutrients is investigated using two methods which are optimal characteristic of inversely proportional to the variance and weighted sum of z-scores. Data was collected from 30 manufactures of grouper fish feed meal and analysis were done by using inversely proportional to the variance and weighted sum of z-scores respectively via SPSS, Statdisk Software and Microsoft Excel. Result shown that weighted sum of z-scores is more appropriate and better method compare with inversely proportional to the variance. The priority of nutrients using weighted sum of z-scores are crude ash, follow by crude protein, phosphorus, crude fat, crude fibre and calcium. This vital information can be considered in such as further study in formulating the nutrients for grouper fish feed.

Keywords: Grouper, Feed Formulation, Weighted sum of Z-scores, Inversely Proportional to the Variance, Nutrient Requirements.
Scope of the Article: Community Information Systems