The research aimed to study the processing of fish tofu from fresh water fish such as Pla Pluang Hin (Neolissochilus stracheyi) Pla Jad (Hypsibarbus malcolmi) and Pla Mum (Scanphiodonichthys acanthopterus) that are usually found in Bo-klue district Nan province. These three fresh water fish tofu were compared with tofu from Threadfin bream (Nemipterus hexodon) that was a commercial raw material of fish tofu. The fish tofus were experimented on 1) physical attributes 2) chemical compositions and 3) sensory preference. The physical attributes of color size amount of air bubble and firmness were studied. The results showed that lightness (L) of tofu from Pla Pluang Hin and Pla Jad was higher than Pla Mum and Threadfin bream. Threadfin bream tofu showed the highest redness (a*). There was not difference in the yellowness (b*) of all fish tofu. The sizes of the air bubbles in four fish tofu products were between 1.3 to 1.6 mm. which was 80% of air bubble amounts found in a square centimeter. The firmness of all fresh water fish tofu was lower than Threadfin bream tofu. The Percentage of moisture ash fat and protein contents were between 74.2 to 75.7 2.1 to 3.2 0.5 to 3.6 and 21.1 to 25.5 percent respectively. The sensory attribute acceptance of three types fresh water fish tofu were not significant to Threadfin bream tofu. The products were accepted at level of moderate to high preference.

The objectives of this research had to study and compare the problem and obstacle of freshmen student who had studying achievements lower than 2.00 in 3 aspects: the student teaching and studying environment aspect variable classified by sex and major. The research group was the freshman students of the Faculty of Science and Fisheries Technology Rajamangala University of Technology Srivijaya Trang Campus and their studying achievement lower than 2.00. Interviewing was used the research material. The results showed as following: Problems and obstacles which had the most effected to the research group was the student espect for example basic knowledge living adjustment of student lack of motivation and enthusiasm to learn as well as teaching and studying aspect for example lecturer’s inadequate teaching methods respectively. Comparison between problem and obstacle of freshmen student who having studying achievements lower than 2.00 classified by sex and major was found that the different of sex had no statistical significant difference in all and each aspects. In addition the different of student’s major had no statistical significant difference in all aspect. Contrast to in each aspect the studying environment aspect was found statistical significant difference at the level of .05.

The objective of this study was to evaluate the phenotypic lactation curve of crossbred dairy cows raised in Phetchaburi and Prachuap Khiri Khan Provinces. Monthly sampling of daily milk yield of 5516 records from 485 first lactating heifers collected by the Biotechnology in Livestock Production Division Department of Livestock Development during the year 1997 to 2003 were used in this study. Monthly sampling of daily milk yield were fitted using Wilmink function (yt=a+bt+cexp-0.05t) to describe the whole and individual curves and estimated lactation parameters (a b and c). All parameters were used to calculate milk yield at day 60 (MY60) 280 (MY280) peak yield (PM) and accumulated 305 days yield (MY305). The results showed that the fixed effects of herd-year-season of calving level of HF blood or genetic provinces and age of calving were significant differences of all traits (P<0.05; a b c MY60 MY280 PM และ MY305). The phenotypic correlations between the considering traits were significant differences (P<0.05). Moreover the study on the nature of lactation curve could describe the lactating abilities and it could represent the others important traits in lactation curve. Therefore these results could guide the farmers to manage their farm and feeding the cattle to be more effective.

This research presents the development of food exchange list program for individual person by using local search technique. Controlling conditions of the research the nutrients calculated of carbohydrate protein and fat must be less than 3 grams/day and 30 Kcal/day for energy has also been controlled. All development has been done on laptop computer. The results show that the averaged search time and the averaged search iteration are 2.8176 seconds and 2484 iterations respectively. The variations of carbohydrate protein and fat are –0.2683 +0.015 –0.6 grams respectively. The proposed local search technique can reduce the time of calculate up to 1278 times per case study when compared with training people.

The electronic science is complicated and highly abstract. The contents are abstracts and difficult to understand. This research was developed by computer assisted instruction lesson on electronic circuit multimedia using jigsaw puzzles. The objective was studied the achievement of circuit electronics and the satisfaction of students in grade 9. There were 132 students. The results from the pretest and posttest of computer assisted instruction lesson on electronic circuit multimedia. They have highly scores and satisfied.